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Trail Running Calendar near Chalfont Saint Peter 2026-2027

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Explore the top trail runs near Chalfont Saint Peter for 2026-2027! We've gathered 247 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

July 2027
Group guided 10 km trail run across the boardwalk and heathland of Thursley National Nature Reserve with evening and night options, car parking and a post-run alcohol-free beer.
Trail event along the Ridgeway with 50 km and 100 km options finishing at Avebury Standing Stones, featuring signposted routes, pit stops, bag transfer and medical support.
A muddy 5k obstacle course at Fairlands Valley Park in Stevenage with staggered waves, on-site facilities, a minimum fundraising target of £50 and age 13 and over requirement.
Evening trail races at Wendover Woods with 10K, 5K and a 1.5K accessible loop, with proceeds donated to the Chilterns Neuro Centre.
ATW St Albans Summer 10K at Highfield Park on 18 July 2027 features a chip timed 10K, a free family fun run and an event village with refreshments and entertainment.
A Guildford based trail event on Sat 31 July 2027 offering 50 km, 25 km, 24 km and 10 mile routes with GPS tracking, covered rest stops and medical support.
August 2027
A 47 mile point to point ultramarathon along the Thames from Henley to Kingston, with three checkpoints offering food and drink, mandatory navigation kit and a required average pace to remain in the race.
A 103 mile continuous trail race along the North Downs Way from Farnham to Ashford with 11,000 ft of climb, a 30 hour cut off and a 50 mile qualifying standard.
Timed looped trail at Denbies Wine Estate offering distances from a single 5.3 km loop up to ultramarathon within a seven hour limit, flexible start window and medal options.
Guided 10 km trail run around Silent Pool near Guildford, following parts of the North Downs Way and Netley Heath forest. Sessions run at dusk or at night with headtorches in a led group and a recommended pace of about 10 min per mile.
A Thames Towpath trail event from Putney Bridge to Henley offering 100, 75, 50 and 25 km options plus supported rest stops and camping.
Trail half, 10K and a free 2 km kids run at Denbies Vineyard with wine stations, live music and a post-race party.
A 10 km trail run around Sandridge, St Albans, starting at Woodcock Hill on 12/09/2027 with entry listed at GBP 23.
Undulating trail races on Ashtead Common on 12 September 2027 offering a 10 km and a 2 km kids run while raising funds for local charities.
A 50 mile single loop through the Chiltern Hills with 5600 ft of climb, five well stocked aid stations, full medical support and a 13 hour finish cut off.
Looped trail event from Henley with supported 50 km, 25 km and 10 km options, camping, staffed rest stops, medical cover and GPS tracking.
October 2027
A fully marked 100 km trail ultramarathon around the Chiltern Hills from Chesham with GPS tracking, six checkpoints, a 19 hour limit and a 250 runner field.
A guided 30 mile trail run from St Martha's Hill exploring the Surrey Hills and Box Hill with an experienced ultra runner and coach. Group pace, recommended 22 miles training, cost £55 and an alcohol free beer may be available.
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