Course
Two trail routes starting and finishing at Marlow Park beside Grafham Water, both heading west towards Easton on trails and sections of the Three Shires Way bridleway. The 10k loops back along the outward track; the half marathon carries on for a larger loop of the reservoir, through Cambridgeshire countryside with wide views. Fully marked with arrow signs, one water stop on the 10k and three on the half, with first aid at the start and finish.
Key dates
- ★Race dayOctober 2027 · date to be announced
About
Grafham Water Trail Races follow the trails around this large reservoir in Cambridgeshire, with 10K and half marathon distances along the lakeside path.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.