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Trail Running Calendar near Slough 2026-2027

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Explore the top trail runs near Slough for 2026-2027! We've gathered 300 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2027
A guided 30-mile trail run from St Martha's Hill along the North Downs Way to Box Hill, offering group pacing, coaching, and route support for first-time ultra runners.
A 100 mile trail race from Goring and Streatley run as four 25 mile out and back legs on the Thames Path and Ridgeway, with 16 aid stations and a 28 hour cut off.
Run 10K, a half marathon or a junior race through Hampton Court Palace grounds and along the Thames Path with chip timing and free race photos.
A fully marked single loop 50K trail from Berkhamsted through the Chilterns with three aid stations, required navigation and a nine hour time limit.
Half Marathon and 10K through Richmond Park, with four laps for the half, chip timed results, free photos and on-course support in an autumn woodland setting.
November 2027
Point to point Half Marathon along the Grand Union Canal from Cowley to Cassiobury Park, Watford, on towpaths, trails and woodland. Entry from £35.
Timed lap event on a flat riverside towpath in Walton on Thames offering distances from 5 km to ultra, bespoke finisher medals and a no medal entry option.
A four-lap half marathon and 10K through Richmond Park’s woodland and open spaces, with chip timing, free photos and an event village.
A Remembrance Day Time Challenge along the River Thames offering distances from 3 km to ultra with medals, distance pins and on course aid.
A riverside towpath marathon and half marathon in Surrey on 14 November 2027 featuring a two minute race freeze and commemorative medals for all participants.
Scenic runs across Wimbledon Common offering chip timed Half Marathon and 10k with free photos, finish line goodies and on course water stations.
Trail races through Alexandra Gardens with 10K and half marathon options, chip timing, free photos and support for Brain Research UK.
A November event in Richmond Park offering scenic 10K and Half Marathon routes through traffic free Royal Park with chip timing and sustainability measures.
December 2027
Guided trail run at Box Hill covering 12.5 miles with about 1000 m of ascent across woodland and technical climbs, led at a steady group pace by an experienced guide.
A guided 30 mile trail run from Haslemere on the Serpent Trail and Sussex Border Path, led by an experienced ultra runner at a social group pace.
A fully signed 50k trail ultra in the Surrey Hills from Dorking Sports Centre on 5 December 2027, with checkpoints, SportIdent timing and a 10 hour limit.
Riverside trail run from Windsor along the Thames with signed courses of 21.8K or 15.7K, chip timing and a finisher medal.
Half Marathon and 10K in Richmond Park on 12 December 2027, four laps through woodland with chip timing and a finishers medal.
Trail 5k and 10k through Wimbledon Common with signposted miles, chip-timed results, a themed medal, free photos and post-race refreshments.
A winter cross country 10 km at Renegade Brewery in Yattendon on 24 December 2027 with a medal and a drink for every finisher.
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