Caerphilly 10K
The Lowdown
The Caerphilly 10K is an annual road race organized by Caerphilly County Borough Council with support from Welsh Athletics and Sport Wales, starting and finishing on Crescent Road in the shadow of Caerphilly Castle, Wales' largest castle. The redesigned course removed the hills that previously bookended the route, producing a flatter, faster-flowing 6.2-mile loop through Caerphilly town centre that supports consistent pacing and personal-best attempts, passing landmarks including the town's famous cheese sculpture and the Tommy Cooper statue with castle views throughout. A companion 2K fun run starts at 9:15am, 45 minutes ahead of the 10K's 10:00am gun. The event has grown quickly: the 2026 edition sold out with a record 2,500 10K finishers and 1,200 in the 2K, and Welsh football international Aaron Ramsey, a Caerphilly native, has run alongside BBC weather presenter Sue Charles and elite winner Dewi Griffiths, a four-time defending champion. Local charity Llamau is a featured beneficiary. The 2027 edition is scheduled for Sunday, May 9, with online entry via the KronoSports registration platform.
Race Day
Weather Forecast
Elevation
Terrain Profile
Relatively flat course
Participants
Field Size
Medium-sized race
Crowd Rating
Spectator Support
Good crowd energy
Caerphilly Castle - start and finish on Crescent Road, in view for most of the route
Caerphilly town centre cheese sculpture - passed on the course
Tommy Cooper statue - passed on the course, honoring the Caerphilly-born comedian
Caerphilly, Wales, United Kingdom
GB
Average rate for 3-star accommodations near the start line
Eligibility
- 10K: minimum age 15 on race day
- 2K Fun Run: minimum age 7 on race day
Required Documents
- Race number and timing chip collected before the start; no photo ID requirement published
Entry Methods
- Online via the official KronoSports event page
- 10K capped at approximately 2,500 finishers; the 2026 edition sold out
Cancellation & Refund Policy
Entries are non-refundable and non-transferable per standard UK mass-participation race booking terms; not confirmed on an official refund policy page
Organized and funded by Caerphilly County Borough Council with support from Welsh Athletics and Sport Wales.
2026 edition course record: 30:04 (Dewi Griffiths, his fourth consecutive win); course best 29:12 set in 2024.
Featured charity partner: Llamau, a Wales-based youth and women's homelessness charity.
The 2026 route removed hills at the start and finish for a flatter profile; 2027 uses the same redesigned course.
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