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Capital routes, river paths, canals, Chiltern hills and Ridgeway crossings often span several counties. Each race appears once under its permanent identity, even when the route crosses regional boundaries.
Decision guide
Flatter river and canal routes trade climbing for sustained running, night exposure and repetitive load. Use cutoff, support and surface facts rather than assuming flat means easy.
Latest recorded source check: 2026-09-04
6 supported records
11 supported records
9 supported records
5 supported records
5 supported records
1 supported record
Curated, not faceted
Format-defined endurance
These events have no honest conventional total distance. Their real loop, duration or ascent objective appears without a made-up Difficulty or cutoff comparison.
Tooting Bec Athletics Track · England
A legitimate variable-total fixed time event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Redbridge Cycling Centre · England
A legitimate variable-total backyard event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Winchester House, Putney · England
A legitimate variable-total backyard event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Woodford Green · England
A legitimate variable-total looped event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Caldecotte Xperience, Milton Keynes · England
A legitimate variable-total fixed time event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Albyns Farm, Hornchurch · England
A legitimate variable-total looped event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Frylands Wood Scout Outdoor Centre, Croydon · England
A legitimate variable-total backyard event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Wasing Park, Reading · England
A legitimate variable-total fixed time event. Conventional distance, cutoff pressure and Difficulty are not applicable.
Ultra Challenge
Bishops Park, London to Henley-on-Thames · England
Data PartialRace For You difficulty
Moderate
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Ultra Challenge
Bishops Park, London to Henley-on-Thames · England
Data PartialRace For You difficulty
Moderate
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Ultra Challenge
Hurst Park to Henley-on-Thames · England
Data PartialRace For You difficulty
Beginner-friendly
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Ultra Challenge
Bishops Park, London to Runnymede · England
Data PartialRace For You difficulty
Beginner-friendly
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Ultra Challenge
Runnymede to Henley-on-Thames · England
Data PartialRace For You difficulty
Beginner-friendly
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Very hard
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Moderate
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Beginner-friendly
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Hard
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Go Beyond Grand Slam
Iffley / Hawkwell House, Oxford · England
Data PartialRace For You difficulty
Moderate
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Hard
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Go Beyond Grand Slam
Shoulder of Mutton, Wendover to Stowe Centre, Little Venice, London · England
Data HighRace For You difficulty
Moderate
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Beginner-friendly
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Welwyn Garden City to Hackney Wick · England
Data PartialRace For You difficulty
Moderate
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Ultra Challenge
Windsor Racecourse · England
Data PartialRace For You difficulty
Beginner-friendly
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Extreme
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Very hard
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Race For You difficulty
Very hard
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy.
Complete directory
The detailed cards above prioritise the next records in this collection. Every other permanent race route remains available here and through the full Explorer.
This page includes 39 current discoverable race records matching the stated geography or distance definition: 31 fixed-distance and 8 format-defined. Cross-border families appear only once under their permanent identity.
Edition facts retain official-source URLs and a last-checked date. Unknown distance, ascent, cutoff or price is shown as unknown instead of being inferred from another year.
