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Loading page content.Browse the announced upcoming marathons in date order. Each edition keeps its own date, surface and official event link; several editions can belong to the same race.
For date, surface and nearby filters, return to the main collection. Nearby results use the existing approximate-area rules; this list does not receive your location.
462 upcoming editions across 375 race families. Showing 81–120. Dates assessed for this list on 7 November 2026.
The list date is not a new source check. Each edition retains its recorded check date below; entry availability can change. Awaiting-date and past editions are not counted as upcoming.
6 December 2026
Crawley · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)7 December 2026
Pengethley, Ross-on-Wye · England
Published distance: Marathon option; 2.5 km off-road laps
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: 2 Turtle Doves. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)8 December 2026
Pengethley, Ross-on-Wye · England
Published distance: Marathon option; 2.5 km off-road laps
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: 3 French Hens Run. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)11 December 2026
Walton-on-Thames · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)11 December 2026
Staines-upon-Thames · England
Published distance: Marathon (6 laps; published lap 4.37 miles / 7km)
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted.
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted.
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted. Generic entry controls do not establish entry availability.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Dare Valley Country Park, Aberdare · Wales
Published distance: 26 miles
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. The URL retains 2024 but current page explicitly announces 12 December 2026. Circular marathon differs from the linear half and 34-mile ultra.
Opened official sources support the date, individual marathon, start locality and published distance. The URL retains 2024 but current page explicitly announces 12 December 2026. Circular marathon differs from the linear half and 34-mile ultra.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Kirkstall, Leeds · England
Published distance: Marathon (2 x Half Marathon)
Organiser-labelled trail marathon. Marathon (2 x Half Marathon); published wording is retained without assuming road certification or a numerical standard length.
Fixed marathon distance using the organiser’s published loop arrangement; other festival distances are separate and excluded.
Opened official event page supplies exact date, named marathon option, event locality and surface. Generic Enter Now button does not establish current availability; UNKNOWN retained. Each day may be entered separately; one recurring marathon with two dated editions.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Carrickfergus, County Antrim · Northern Ireland
Published distance: Marathon (4 loops)
Official individual marathon option uses four loops from Carrickfergus. Exact numerical distance and surface remain unverified.
Official marathon option uses repeated loops; laps are not separate editions.
Official individual marathon option uses four loops from Carrickfergus. Exact numerical distance and surface remain unverified. 2026-09-28 — registrationStatus: Official calendar explicitly states registration open for this edition. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — entryPrice: Official event-specific price. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — priceQualifier: Do not assert checkout total without fee evidence. This check covers these facts only; other fields retain their previous verification.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Chalfont St Peter · England
Published distance: 43.3 km
Official distance table explicitly recognises a marathon category completed in 6 whole laps, with the actual published total 43.3 km. This is a flexible-distance event closing at 5pm, not a conventional road marathon. Distinct numbered course variants are retained within the Running Tribe parent series; dates on the same course are editions. Correction audit: Linked official registration describes Courses 4, 5, 6 and 12 as a combination of trails and paths; mixed classification retained. It states 9am to5pm, an eight-hour event.
Official distance table explicitly recognises a marathon category completed in 6 whole laps, with the actual published total 43.3 km. This is a flexible-distance event closing at 5pm, not a conventional road marathon. Distinct numbered course variants are retained within the Running Tribe parent series; dates on the same course are editions.
Official distance table explicitly recognises a marathon category completed in 6 whole laps, with the actual published total 43.3 km. This is a flexible-distance event closing at 5pm, not a conventional road marathon. Distinct numbered course variants are retained within the Running Tribe parent series; dates on the same course are editions. Generic entry controls do not establish entry availability. Linked organiser Eventrac entry was attempted; availability is unknown.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Walton-on-Thames · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Pengethley, Ross-on-Wye · England
Published distance: Marathon option; 2.5 km off-road laps
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: 7 Swans a Swimming. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products. 2026-09-28 — entryPrice: Edition-specific official price; no additional compulsory booking fee was published in the readable source. Optional add-ons excluded. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — priceQualifier: Edition-specific official price; no additional compulsory booking fee was published in the readable source. Optional add-ons excluded. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — cutoffHours: Official edition explicitly gives a 7-hour limit for the marathon-eligible event. This check covers these facts only; other fields retain their previous verification.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)12 December 2026
Stratford-upon-Avon · England
Published distance: Marathon
Official event explicitly supports a marathon completion option within its timed challenge, using published 5.3km/3.28-mile laps. It is not represented as a conventional fixed-distance race.
Official event explicitly supports a marathon completion option within its timed challenge, using published 5.3km/3.28-mile laps. It is not represented as a conventional fixed-distance race.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
High Lodge, Thetford Forest, Brandon · England
Published distance: Full Marathon
Official event explicitly supports an individual full marathon category within its timed running challenge; lap lengths are approximate and are not silently normalised to a certified road distance.
Official event explicitly supports an individual full marathon category within its timed running challenge; lap lengths are approximate and are not silently normalised to a certified road distance.
Official event explicitly supports an individual full marathon category within its timed running challenge; lap lengths are approximate and are not silently normalised to a certified road distance. Generic Enter Now button is not treated as availability confirmation.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
St Neots · England
Published distance: Marathon
Official event explicitly supports a marathon completion option within its timed challenge, using published 5.3km/3.28-mile laps. It is not represented as a conventional fixed-distance race.
Official event explicitly supports a marathon completion option within its timed challenge, using published 5.3km/3.28-mile laps. It is not represented as a conventional fixed-distance race.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
Kirkstall, Leeds · England
Published distance: Marathon (2 x Half Marathon loops)
Organiser-labelled trail marathon. Marathon (2 x Half Marathon); published wording is retained without assuming road certification or a numerical standard length.
Fixed marathon distance using the organiser’s published loop arrangement; other festival distances are separate and excluded.
Opened official event page supplies exact date, named marathon option, event locality and surface. Generic Enter Now button does not establish current availability; UNKNOWN retained. Each day may be entered separately; one recurring marathon with two dated editions.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
Ebley Wharf, Stroud · England
Published distance: Marathon option (3.28-mile laps)
Seven-hour timed event with an explicit organiser-supported marathon option on 3.28-mile out-and-back laps. Surface is not confirmed.
Seven-hour timed event with an explicit organiser-supported marathon option on 3.28-mile out-and-back laps.
Seven-hour timed event with an explicit organiser-supported marathon option on 3.28-mile out-and-back laps. Official event and entry pages verify date and venue. Only the attended individual marathon option is included; virtual products and other distances are excluded. Rounded lap distances are not multiplied into an invented measured total. The official entry page explicitly says Full; event remains scheduled. The page describes a canal route but does not establish its surface composition; surface remains unknown.
The organiser-managed entry record categorises this event as multi-terrain. Its description explicitly includes the individual marathon option on the same repeated canal course.
Mixed is the canonical mapping of the explicit multi-terrain category; surface percentages and measured total are not inferred.
Edition sources checked 14 September 2026. Surface evidence checked 15 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
Rayne · England
Published distance: Marathon:8 × 5.3km laps
Official current edition field and explicit marathon entry option verified. Individual marathon variant is distinct from timed/shorter options; no festival-distance duplication.
Official current edition field and explicit marathon entry option verified. Individual marathon variant is distinct from timed/shorter options; no festival-distance duplication.
Official current edition field and explicit marathon entry option verified. Individual marathon variant is distinct from timed/shorter options; no festival-distance duplication. Field-scoped check 2026-10-24: The current 13 December 2026 organiser registration page explicitly says this event is sold out. Only registration availability was reviewed; other facts retain their previous verification dates.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
Southbourne Beach, Bournemouth · England
Published distance: Marathon option (5.3km / 3.28-mile laps)
Seven-hour choose-your-distance event with an explicitly recognised, AUKCM-measured road-marathon completion on promenade laps.
Seven-hour choose-your-distance event with an explicitly recognised, AUKCM-measured road-marathon completion on promenade laps.
Official page confirms date, tarmac promenade route and explicit measured road-marathon qualification for 100 Marathon Club purposes. Marathon eligibility is supported by that explicit recognition, not merely the choose-your-distance wording. Timed event, maximum seven hours; generic Enter Now does not establish current availability.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)13 December 2026
Durham · England
Published distance: Marathon (6 × 4.37-mile laps)
Officially labelled trail marathon; exact published distance Marathon (6 × 4.37-mile laps) is preserved. Official timed challenge explicitly recognises a marathon after six 4.37-mile laps; lap length may change to 3.28 miles according to conditions. Marathon completion pins are expressly offered. Duration 7 hours. Entry availability is not verified by the generic entry control.
Official timed challenge explicitly recognises a marathon after six 4.37-mile laps; lap length may change to 3.28 miles according to conditions. Marathon completion pins are expressly offered. Duration 7 hours. Entry availability is not verified by the generic entry control.
Opened official source supports event identity, date, locality and published marathon option. Official timed challenge explicitly recognises a marathon after six 4.37-mile laps; lap length may change to 3.28 miles according to conditions. Marathon completion pins are expressly offered. Duration 7 hours. Entry availability is not verified by the generic entry control.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)15 December 2026
Pengethley, Ross-on-Wye · England
Published distance: Marathon option; 2.5 km off-road laps
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: 10 Lords a Leaping. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products. 2026-09-28 — entryPrice: Edition-specific official price; no additional compulsory booking fee was published in the readable source. Optional add-ons excluded. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — priceQualifier: Edition-specific official price; no additional compulsory booking fee was published in the readable source. Optional add-ons excluded. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — cutoffHours: Official edition explicitly gives a 7-hour limit for the marathon-eligible event. This check covers these facts only; other fields retain their previous verification.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)16 December 2026
Pengethley, Ross-on-Wye · England
Published distance: Marathon option; 2.5 km off-road laps
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: 11 Pipers Piping. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)17 December 2026
Pengethley, Ross-on-Wye · England
Published distance: Marathon option; 2.5 km off-road laps
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: Partridge in a Pear Tree. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products.
Seven-hour physical timed challenge at Pengethley Manor explicitly offers an individual marathon target on 2.5 km off-road laps. Exact marathon lap adjustment is not published, so no numeric total is invented. Independent daily entry verified; virtual option and multi-day package are not separate editions. Day: 12 Drummers Drumming. Parent title says 12 days, body says seven; only seven daily physical pages also present on official race calendar are included. Other five dates appear only as virtual products. 2026-09-28 — entryPrice: Edition-specific official price; no additional compulsory booking fee was published in the readable source. Optional add-ons excluded. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — priceQualifier: Edition-specific official price; no additional compulsory booking fee was published in the readable source. Optional add-ons excluded. This check covers these facts only; other fields retain their previous verification. 2026-09-28 — cutoffHours: Official edition explicitly gives a 7-hour limit for the marathon-eligible event. This check covers these facts only; other fields retain their previous verification.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)19 December 2026
Heslington, York · England
Published distance: Marathon (12 × 2.2-mile laps)
Official full-marathon option; exact published distance Marathon (12 × 2.2-mile laps) is preserved. Six-hour timed event explicitly identifies twelve laps as a marathon; course is university tarmac paths with a small grass section. This York event differs from the similarly named Northampton event.
Six-hour timed event explicitly identifies twelve laps as a marathon; course is university tarmac paths with a small grass section. This York event differs from the similarly named Northampton event.
Opened official source supports event identity, date, locality and published marathon option. Six-hour timed event explicitly identifies twelve laps as a marathon; course is university tarmac paths with a small grass section. This York event differs from the similarly named Northampton event.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)19 December 2026
Winchester · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)20 December 2026
Bingley · England
Published distance: Marathon (2x Half)
Organiser-labelled trail marathon. Marathon (2x Half); published wording is retained without assuming road certification or a numerical standard length.
Fixed marathon distance using the organiser’s published loop arrangement; other festival distances are separate and excluded.
Opened official event page supplies exact date, named marathon option, event locality and surface. Generic Enter Now button does not establish current availability; UNKNOWN retained. Rugby club is registration/parking, 5–10 minutes from canal start; no precise start coordinate supplied.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)20 December 2026
Telford · England
Published distance: Marathon
Official page explicitly lists a marathon option.
Official page explicitly lists a marathon option. Generic Enter Now button is not treated as availability confirmation.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)20 December 2026
Dare Valley Country Park, Aberdare · Wales
Published distance: Marathon: 6 laps of 4.37 miles / 7 km
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Opened official page confirms date, venue and an explicit marathon completion option. Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)20 December 2026
Southwater · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)23 December 2026
Milton Keynes · England
Published distance: Marathon (7½ laps of Caldecotte Lake)
A fixed-distance individual marathon on a lapped lake course, conducted under 100 Marathon Club rules. Each dated full-marathon entry is separately selectable; half-marathon, 50km, and package tickets are not additional marathon editions. Surface is not stated clearly in the opened official event/course pages and remains unknown.
A fixed-distance individual marathon on a lapped lake course, conducted under 100 Marathon Club rules. Each dated full-marathon entry is separately selectable; half-marathon, 50km, and package tickets are not additional marathon editions. Surface is not stated clearly in the opened official event/course pages and remains unknown.
A fixed-distance individual marathon on a lapped lake course, conducted under 100 Marathon Club rules. Each dated full-marathon entry is separately selectable; half-marathon, 50km, and package tickets are not additional marathon editions. Surface is not stated clearly in the opened official event/course pages and remains unknown. Generic entry controls do not establish entry availability.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)24 December 2026
Milton Keynes · England
Published distance: Marathon (7½ laps of Caldecotte Lake)
A fixed-distance individual marathon on a lapped lake course, conducted under 100 Marathon Club rules. Each dated full-marathon entry is separately selectable; half-marathon, 50km, and package tickets are not additional marathon editions. Surface is not stated clearly in the opened official event/course pages and remains unknown.
A fixed-distance individual marathon on a lapped lake course, conducted under 100 Marathon Club rules. Each dated full-marathon entry is separately selectable; half-marathon, 50km, and package tickets are not additional marathon editions. Surface is not stated clearly in the opened official event/course pages and remains unknown.
A fixed-distance individual marathon on a lapped lake course, conducted under 100 Marathon Club rules. Each dated full-marathon entry is separately selectable; half-marathon, 50km, and package tickets are not additional marathon editions. Surface is not stated clearly in the opened official event/course pages and remains unknown. Generic entry controls do not establish entry availability.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)25 December 2026
Staines-upon-Thames · England
Published distance: Marathon (6 laps; published lap 4.37 miles / 7km)
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted.
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted.
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted. Generic entry controls do not establish entry availability.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)27 December 2026
Grafham · England
Published distance: Marathon
Official event explicitly supports a marathon completion option within its timed challenge, using published 5.3km/3.28-mile laps. It is not represented as a conventional fixed-distance race.
Official event explicitly supports a marathon completion option within its timed challenge, using published 5.3km/3.28-mile laps. It is not represented as a conventional fixed-distance race.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)27 December 2026
Crystal Palace Park, Thicket Road, London · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)27 December 2026
Barry Sidings Country Park, Pontypridd · Wales
Published distance: Marathon; 5.3 km / 3.28 mile laps
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Opened official page confirms date, venue and an explicit marathon completion option. Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)27 December 2026
Shrewsbury · England
Published distance: Marathon
Official page explicitly lists a marathon option. Timed sunrise-to-sunset challenge on a purpose-built 1km cycle circuit; the organiser explicitly recognises marathon completion.
Official page explicitly lists a marathon option. Timed sunrise-to-sunset challenge on a purpose-built 1km cycle circuit; the organiser explicitly recognises marathon completion.
Official page explicitly lists a marathon option. Timed sunrise-to-sunset challenge on a purpose-built 1km cycle circuit; the organiser explicitly recognises marathon completion. Generic Enter Now button is not treated as availability confirmation.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)27 December 2026
Staines-upon-Thames · England
Published distance: Marathon (6 laps; published lap 4.37 miles / 7km)
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted.
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted.
Official event date and Staines start are explicit. Seven-hour timed event has a recognised marathon completion category, stated as six laps. Published 4.37-mile / 7km lap lengths are approximate; alternate 3.28-mile loop may be used depending on conditions. No inferred total has been substituted. Generic entry controls do not establish entry availability.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)28 December 2026
Chorlton, Manchester · England
Published distance: Marathon option
Officially labelled trail marathon; exact published distance Marathon option is preserved. Official seven-hour timed event expressly offers half marathon, marathon and ultra choices; this listing is its supported marathon completion option. Numeric marathon distance is not supplied on this event page.
Official seven-hour timed event expressly offers half marathon, marathon and ultra choices; this listing is its supported marathon completion option. Numeric marathon distance is not supplied on this event page.
Opened official source supports event identity, date, locality and published marathon option. Official seven-hour timed event expressly offers half marathon, marathon and ultra choices; this listing is its supported marathon completion option. Numeric marathon distance is not supplied on this event page. 2026-09-28 — registrationStatus: Official linked registration explicitly Open; scheduled date remains unchanged. This check covers these facts only; other fields retain their previous verification.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)28 December 2026
Walton-on-Thames · England
Published distance: Marathon (8 laps)
Official page identifies the independently entered marathon distance.
Official page identifies the independently entered marathon distance.
Official page identifies the independently entered marathon distance. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)30 December 2026
Carrickfergus Castle, Carrickfergus · Northern Ireland
Published distance: Marathon
Explicit official individual marathon option. Official organiser registration page explicitly announces 30 and 31 December 2026 and permits a single marathon on either day. Same route both days: Carrickfergus Castle, short initial out-and-back, Loughshore to Gideons Green and back. Two dated editions of one race; package not another race. Entry text says remains open until 28 December or full, but remaining availability was not independently shown; UNKNOWN. Surface and exact numeric total unpublished.
Official organiser registration page explicitly announces 30 and 31 December 2026 and permits a single marathon on either day. Same route both days: Carrickfergus Castle, short initial out-and-back, Loughshore to Gideons Green and back. Two dated editions of one race; package not another race. Entry text says remains open until 28 December or full, but remaining availability was not independently shown; UNKNOWN. Surface and exact numeric total unpublished.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)30 December 2026
Walton-on-Thames · England
Published distance: Marathon
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one.
Official page explicitly offers a marathon completion option within a timed event; this is not a conventional fixed-distance race. No exact total numerical marathon distance is stated; lap length has not been multiplied to invent one. Linked official EventEntry listing explicitly states Open.
Edition sources checked 14 September 2026.
Official event (opens in a new tab)Entry information (opens in a new tab)Check the published distance and course format together. A timed challenge with a marathon option and a fixed-distance race have different arrangements. Surface, distance certification, elevation and entry status are separate facts. Follow the organiser’s current information before deciding.
The main marathons page also keeps races awaiting a next date separate from confirmed editions. An earlier edition is useful context, not evidence of a future date or unchanged route.