All UK half marathons

Half Marathons / Wales

Caernarfon Half Marathon

Caernarfon Castle · Wales

Organised by Run Wales

Caernarfon Half Marathon is an individual half-marathon event in Caernarfon Castle.

Upcoming edition

5 September 2027

Surface: Road
Published distance
Half marathon

Entry status: unknown

Fixed-distance half marathon

Start: Caernarfon Castle

Race area · event venue. Approximate race area. Check the organiser’s website for the exact start and race-day directions.

Location evidence

Reused saved canonical/current-edition event location 'Caernarfon Castle'. Matched 'Caernarfon Castle' by EXACT_SAVED_LOCATION_COMPONENT; exact GeoNames feature 'Caernarfon Castle', CSTL, validated country/administrative area. Named venue/park representative point, not an exact start. No date/non-location facts reverified. GeoNames (https://www.geonames.org/), CC BY 4.0; transformed to representative event-area point.

Location checked 2026-09-14.

Official individual half-marathon category; no certification inferred.

Official 4 Castles Series 2027 page explicitly lists event and date; bundle entry state does not establish individual entry availability.

Sources checked 14 September 2026. Entry availability can change.

Official sources

Map precision: approximate event venue/locality. Reused saved canonical/current-edition event location 'Caernarfon Castle'. Matched 'Caernarfon Castle' by EXACT_SAVED_LOCATION_COMPONENT; exact GeoNames feature 'Caernarfon Castle', CSTL, validated country/administrative area. Named venue/park representative point, not an exact start. No date/non-location facts reverified. GeoNames (https://www.geonames.org/), CC BY 4.0; transformed to representative event-area point.

Organiser event page (opens in a new tab)