Trail Running calendar near Harwell 2026-2027

We have found 680 Trailruns within 80 miles of Harwell. See below where and when you can find the races.

A 57 mile point to point ultramarathon on 11th July 2026 following the River Severn from Travelodge Worcester to Travelodge Stonehouse, with four checkpoints offering vegan and gluten free options and a bespoke finisher medal.

Self-navigated trail event on 11 July 2026 in the Black Mountains offering 13 to 50 mile routes with GPX tracks, checkpoints, chip timing, medical cover and mandatory kit requirements.

A 24 hour multi terrain relay or solo race near Romford where competitors run repeated 5.75 mile laps in teams of two to eight, with one runner on course per team; camping and event services are available on site.

Follow Britains oldest trail through 5000 years of history on the Ridgeway. Choose between 50km or 100km distances and finish at the iconic Avebury Standing Stones with full medical and snack support.

An inflatable obstacle course event in Southampton on 11 July 2026 offering 2.5k, 5k, 10k and 15k options with giant inflatables, music zones, a mid route water station and a finisher medal for each participant.

Circular off road running and walking routes from Hallow through twelve parishes, with distances from 10 to 40 miles, staffed checkpoints, on-route snacks, and a hot meal and certificate at the finish.

Trail running event at Princes Risborough across the Chiltern Hills offering distances from 8 km to 50 km. Routes run through beech woodland and ridgelines with outposts offering snacks and self-serve water.

A coastal trail event in Studland, Dorset on 11 July 2026 with 50 km and 25 km options. The 50 km features a moving Ferry challenge and fully marked coastal scenery including Old Harry Rocks and Corfe Castle.

Enjoy a flexible timed running event along the flat River Thames towpath. Choose your distance from 5km to an ultra marathon and earn a bespoke spinning medal on this fast riverside course.

A guided morning trail run through the Chiltern Hills covering 10 km from Church Farm Cafe, Aldbury, with Run Leaders, trail instruction and bag storage. Entry is limited to 50 places and tickets are £23.

A teams event at The Packhorse in South Stoke on 11 July 2026 where three person teams in compulsory fancy dress collect and carry a full cider barrel from Upper Midford back to the pub. Prizes include fastest time, best fancy dress and tea..

A lap based timed run at Mowsbury Park on 11 July 2026 offering distances from 5 km up to ultra with a flexible one hour start window and a choice of medal or lower cost no medal entry. Places are limited to 75.

A 5k obstacle course through Abington Park on 11 July 2026 featuring climbing, crawling and sliding obstacles. The event uses staggered wave starts, has a minimum fundraising target and limited accessibility for wheelchair users.

A muddy 5k obstacle course at Beckenham Place Park where participants climb, crawl and slide across grass and paths with steep inclines. Open to ages 13 and over with a published fundraising target and event facilities on site.

A muddy 5k obstacle course at Cofton Park on 11 July 2026 with climb, crawl and slide elements. The event has staggered wave starts, on-site parking and a minimum fundraising target of £50.

Ultra:5K challenges runners at Box End Park in Kempston. The format requires running a 5K on the hour, either five times or three times. The fastest total time across all the runs wins.

A seven mile multi terrain trail race through Knole Park on 12 July 2026, with a chip timed 3.5 km junior event for ages 9 to 15. Profits support The Running Charity and prizes include medals, trophies and cash for course records.

A multi-lap marathon and half marathon at Old Elizabethans Cricket Club, Worcester on 12 July 2026, raising funds for Worcester Acute Stroke Ward and the Community Stroke team. Includes relays, a kids mile, medals and prizes.

A Race for Life event at Abington Park on 12 July 2026 offering 3k, 5k and 10 km routes through park paths and grass. The course is not wheelchair accessible and event parking is on grass.

A 10 km trail race around Stoke Park in Stapleton, Bristol, organised by Town and Country Harriers with half of proceeds to a local charity. The marked route includes steep climbs, rough footing and marshals along the course.

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