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Trail Running Calendar near Guildford 2026-2027

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Explore the top trail runs near Guildford for 2026-2027! We've gathered 296 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

March 2027
Seven consecutive days of timed running along the River Thames with flexible distances from 3 km up to 50 km, lap-based half, full and ultra options, daily medals and pins, aid stations and goody bags.
A four lap half marathon through Richmond Park's woodland and rolling hills, with chip timing, aid stations, bag drop and free race photos.
A two lap, multi terrain 10 km trail run around Mortimer Fairground and local woodlands with a canicross option, chip timing and race photos.
A 5 mile loop around Hall Barn Estate near Beaconsfield with mixed terrain, trail shoes recommended, free M40 service station parking for entrants and prizes across gender and age categories.
April 2027
A single loop 50 km trail ultra around the South Downs from Arundel with 3,200 ft elevation, four aid stations, full waymarking and 2 ITRA points.
10K and half marathon trail races in Alexandra Gardens, Windsor on 4 April 2027 supporting Brain Research UK, with chip timing, free photos and an event village.
A seven-hour Time Challenge along the River Thames with distances from 3 km to 50 km, themed medals, distance pins and on-course aid.
A signposted Half Marathon and 10K across Wimbledon Common with on-course support, event village, free race photos and post-race refreshments.
A timed Friday run on a flat 5.3 km Thames towpath lap with flexible starts; the £10 charity entry supports Rays of Sunshine and all finishers receive a medal.
Seven hour Time Challenge along the River Thames in Staines offering distances from 3km up to 50km, medals, pins, aid stations and goody bags.
Mixed terrain half marathon, 10K and junior race along the Thames at Remenham Farm in Henley on Thames on 10 April 2027.
Races on the Thames Path at Wraysbury Skiff & Punting Club in Runnymede offering Marathon, Half Marathon and 10 km courses with marked turnaround points and stocked checkpoints.
Trail running at Froyle Village Hall on 10 April 2027 with 10 km and half marathon routes, on-course support and funds benefiting the village hall.
Trail races at Cowdray Estate include 3 km kids, 5 km, 10 km and 10 mile options plus dog friendly canicross and a scored 10 km series.
A 7 hour fundraising Time Challenge along the River Thames offering distances from 3 km up to 50 km with themed medals and charity pins for Save The Rhino.
A trail weekend at Cowdray Estate, West Sussex offering five distances from 12 km to 110 km, low technical difficulty, an event village with expo, and optional camping and race support.
Looped 50 km, 25 km or 10 km trail routes from Windsor Racecourse via the Great Park, Runnymede and the Thames Path, with rest stops, medical support and GPS tracking.
A 7 hour Time Challenge along the River Thames in Staines with distances from 3 km to ultra, themed medals, goody bags and aid stations.
Night time trail event at Queen Elizabeth Country Park on 17 April 2027 offering distances from 12 km to 50K with marked courses and staffed aid stations.
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