Trail Running calendar near Watford 2026-2027

We have found 568 Trailruns within 80 miles of Watford. See below where and when you can find the races.

Experience an off road five mile race through the picturesque North Wessex Downs. Follow woodland tracks and rural footpaths on a course starting in Hurstbourne Tarrant with all proceeds supporting local charities.

A single entry that covers four Centurion 100 mile races between 2 May and 18 October 2026, organised by Centurion Running. The combined entry is full and the minimum age for entry is 20.

A muddy 5k obstacle course at Stoneleigh Park on 02 May 2026, with staggered wave starts, a fundraising target and basic on-site facilities; participants must be 13 or older.

A 5 km obstacle course at Lydiard Park where participants climb, crawl and slide through muddy obstacles while raising funds for cancer research. The route uses paths and woodland trails and includes hills and uneven ground.

Tempo Trail Races in Ilmington on 3 May 2026 features 100K, new 50K, marathon, half marathon and 10K trail distances with feed stations, baggage support and a tracker for the ultras.

Trail races across the South Downs from Lancing Manor Leisure Centre on Sunday 3rd May 2026. Choices include marathon, half marathon and a 5 mile trail run with aid stations and course marshals.

Experience a guided group trail run through the Surrey Hills designed to reach 1000m of elevation. This non competitive 12.5 mile journey features technical climbs and woodland trails led by an experienced mountain leader.

Run your own distance along the scenic Stroud Waterways canal in this flexible timed event. Start when you like within a one-hour window and see how far you can go in seven hours. Every participant gets a finisher's medal.

Experience the beauty of the North Wessex Downs with trail races of 20 or 33 miles. Run through historic sites like Avebury and the rolling Wiltshire countryside on courses designed for trail enthusiasts.

A guided 5 km trail run in the Chiltern Hills on 3 May 2026 followed by a Movement Project class. Participants are grouped by ability and supported by Run Leaders; facilities include a cafe, toilets and bag drop.

A friendly trail run on Headley Heath near Leatherhead with a two lap 10 km route through open and woodland paths. The undulating course has a small hill on each lap and offers scenic views and bluebells.

A 23-mile stage relay along the Roach Valley Way run by teams of four, where teams navigate using maps and way markers. The event raises funds for Havens Hospices and awards team prizes and medals to finishers.

A guided **10 km** group trail run at High Lodge in Thetford Forest, led at a conversational pace and organised by ESCAPE trails. Mostly flat woodland trails on mixed surfaces, with a participant fee and parking charge.

A trail festival in Winchester on 4 May 2026 offering four distances from 14 miles to a 50K ultramarathon, fully marked routes, aid stations and parking at Winchester Rugby Club.

Take on the Freddo Mercury Rhapsody Run along a flat riverside towpath at Xcel SPORTS HUB, logging as many 5.3 km laps as you can within a relaxed 7 hour limit. Rock up in a 1.5 hour start window or request a time, with aid stations and opt..

Spring trail races in Harewood Forest featuring 5k, 10k, canicross and a children's fun run on undulating forest and field routes. Pre-registration only; proceeds support local playing fields and school PTA.

Kick off the championship series with this 15k spring trail run in Boreham. Enjoy a scenic route consisting of 95% off road paths through footpaths and bridleways with on site amenities and optional swim access.

A 100 kilometre trail ultramarathon in the Chiltern Hills on 9 May 2026, following an anticlockwise loop past Ashridge, Coombe Hill and Whiteleaf. The fully marked route has open GPS tracking, six checkpoints and a 250 runner limit.

A point to point 50 km ultramarathon from Horsham to Brighton seafront on 9 May 2026, featuring multi terrain trails, four feed stations and a 9.5 hour cut off. Individual and two runner relay entries are offered with team prizes.

Off road half marathon and 10 km near Ludgershall, running through woodland and bridleway trails. The event is chip timed and features stocked aid stations, medical support and finisher medals.

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