Trail Running calendar near Thetford 2026-2027

We have found 260 Trailruns within 80 miles of Thetford. See below where and when you can find the races.

Scenic 5K and multi terrain 10K courses run through Wrest Park and neighbouring farmland, plus children's fun races. The volunteer organised event offers medals, prizes and shares profits with local village groups.

A community 5 km off-road fun run and walk on Therfield Heath, Royston, run over two undulating laps on grass and trails, raising funds for Teenage Cancer Trust with a 700-place entry limit.

A 5.3 mile marshalled trail race around Ashridge Woods on 28 June 2026, starting and finishing at The Recreation Ground, Stocks Road, Albury. Entry fees vary for affiliated and non affiliated runners.

North Downs Run is a multi terrain 30 km race through the Kent countryside on Sunday 28 June 2026. Entries are open with online entry closing 14 June; fees are £38 affiliated, £40 non affiliated and £45 on the day if places remain.

A ten leg team relay along The Ridgeway, one of England's National Trails covering 86.5 miles. The off road, hilly route finishes in Marlborough and teams compete for the shortest total time with rules on leg composition.

A guided 10K group trail run at High Lodge in Thetford Forest, led at a conversational pace and aimed at runners moving from road to trails. The event includes mostly flat woodland paths, a two hour allowance, parking charge of £4 and a £12..

A charity 5k obstacle run at Blackheath Common on 28 June 2026 where participants climb, crawl and slide around a mainly grassy course while raising funds for cancer research. Wave starts, on-site refreshments and toilets are provided.

July 2026

Follow the 82 mile Essex Way trail from Epping tube station to the historic high lighthouse in Harwich. This ultra marathon features mixed terrain and 3,469 feet of elevation with full GPS tracking and five checkpoints.

Forest Five Series Race 2 is a one mile forest race on 04 July 2026, part of a three race series started in 2009 to fund the Orion Harriers clubhouse. The event includes age category and team trophies.

Experience a chip timed multi terrain race through the picturesque country roads and bridleways of Willingham. Choose between 10km and 4 mile routes followed by fun races for children at the local recreation ground.

A 21.1 km off road half marathon along The Ridgeway in Buckinghamshire between Wendover and Princes Risborough. The hilly, fully marked course has two on route aid stations, a 4 hour time limit and a 350 runner field on 5 July 2026.

Community road races of 10 km, 5 km and a 1 km youth race at Jobbers Wood near Much Hadham on 5 July 2026. Organised by The Bishop's Stortford High School as a fundraiser with chip timing, finisher T shirts and age group trophies.

A six hour endurance run on a scenic 5k loop at Marston Lodge in Marston Trussell. Fully chip timed with solo, pair, and team entry options so runners complete as many laps as they can in six hours.

Ware Festival of Running on Sunday 5 July 2026 features a 10 mile, a 10k and children's races along the River Lee Navigation. All proceeds support the Essex and Herts Air Ambulance.

A Pretty Muddy 5k obstacle event at Fairlands Valley Park with mixed terrain, staggered wave starts and on-site facilities. Participants must be 13 or older and receive event support plus a finisher medal.

Part of the Northants 5K Series, Race 4 runs in Fermyn Woods Country Park on Wednesday 8 July 2026 over multi terrain through an ancient woodland. Finishers receive a bespoke 5K medal and a virtual entry option is available.

A multi-day Spartan obstacle event at Belvoir Castle featuring Sprint, Super and Beast races plus kids races and Hurricane Heat sessions. The Trifecta Weekend format lets racers attempt all three main distances across the same weekend.

The Wibbly Wobbly Log Jog will take place in Thetford on Friday 10 July 2026. You can run 5 miles.

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.

Explore the ancient woodlands and chalky ridges of the Chiltern Hills with five trail distances ranging from 8km to a 50km ultra. Enjoy a plastic free racing experience starting from the historic market town of Princes Risborough.

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