Trail Running calendar near Harwell 2025-2026

Run a scenic 10 km along the Thames and Jubilee River through Windsor, Dorney and Eton, finishing by the Windsor & Eton Brewery. Multi terrain course with a medal and post race pint makes this a perfect social and club outing.

Up on the Downs, hosted by Tri-Counties Trail Running, takes place at Breamore House near Salisbury. Runners can choose from 5k, 10k (about 11.5k), or a half marathon, all starting and finishing at Breamore House. The route is mainly trail,..

Join the Pitsford Water Trail Races on 1 March 2026 for scenic, fully marshaled trail runs around Pitsford Water with 10k and half marathon options. Enjoy village views, finisher medal and free digital photos in a friendly countryside event..

Tackle undulating trails, muddy paths and a shallow stream crossing on an adventurous six mile route at Baggeridge Country Park. Join the Action Heart Tuff Un on 1 March 2026 to test yourself and support a West Midlands cardiac charity.

Take on the rugged Imber Ultra, a 33.5 mile multi terrain trail around Salisbury Plain starting from Westbury. This charity fundraiser on 1 March 2026 follows the Imber Range Perimeter Path clockwise and welcomes adventurous trail runners.

Join a guided 10 km trail from Silent Pool, Albury along the North Downs Way through Netley Heath to Shere, with sunset or headtorch night options. Led by a qualified guide, the run features kit trials and sometimes an alcohol free beer.

Join Thunder Races at Harrold Odell Country Park for scenic 25 km and 50 km trail runs through woodland and countryside. Marked routes, aid stations and finish medals make it a welcoming challenge for trail runners of all levels.

Tackle the Winter GMU around Bristol on the Community Forest Path with 45 mile and 30 mile options on scenic self guided routes. Chip timing, well stocked checkpoints and a technical finishers T shirt and bespoke medal await.

Join the Humanity Direct Amersham Ultra on 7 March for scenic footpath and bridleway routes of 10 km, 25 km or 50 km starting at Dr Challoner's School. Run or walk to fundraise for Humanity Direct and earn a finisher medal.

Run through ancient New Forest woodlands, heath and meadows with 10km, 15km and 22km route options. Dog friendly, with canicross categories, chip timing and medals.

Tackle the Leith Hill Half Marathon, a scenic 13.1 miles cross country run from Dorking to Leith Hill Tower and back with about 1,800 feet of climbing. Enjoy stunning views, a commemorative medal and a full cooked breakfast at the finish.

Take on the Wight Riot, a mixed terrain coastal path run at Hordle Cliff West with stunning views of the Isle of Wight and passages past Sturt Pond. Choose a 5K or multiple lap ultra and earn a finisher medal for every completed lap.

Hannington Hike in Wellingborough on 8 Mar 2026 offers two waymarked walks of about 15 and 27 miles for LDWA members and guests. Enjoy checkpoints with snacks and hot drinks and a certificate and badge at the finish.

Tackle the Hundred Hills 50 km, a challenging trail ultra at Stonor Park near Henley on Thames with two 25 km loops and 4000 ft of ascent. Five aid stations and hot food at the finish make for strong support.

Take on the Maverick Hampshire Trail at Matterley Basin, a scenic, undulating route through South Downs woodland with panoramic views to Cheesefoot Head. Choose 5 km, 16 km or a challenging 24 km half marathon and enjoy timed results, finis..

Run from Swanage seafront to the dramatic ruins of Corfe Castle along scenic chalk and sand trails past Old Harry Rocks and Studland. Finishers can ride a private steam train back to Swanage for a memorable end to the day.

Run through ancient trees and rolling contours at the DirtRun Wyre Wizard Trail in Wyre Forest. Choose a 13 mile half marathon or 7.6 mile Super Seven for scenic trails, medals and on course support.

Discover three brand new scenic routes across the North Downs and Greensand Ridge at the Sevenoaks Circular Challenge on 15 March 2026. Choose 15, 20 or 30 miles and enjoy supported checkpoints, hot finish food and sweeping North Downs view..

The ZigZag 2026 Moo-rathon, Calf and Hen K at the Farm is a trail running event held at Hyde Hall Farm, SG9 0RU. Returning for its third year, the event offers multiple distance options including 10k, half marathon, full marathon, and ultra..

The Gratitude 25km is an exciting running event taking place in Broxbourne, UK. This race is designed for runners of all levels, promoting fitness and community spirit. Participants will enjoy a scenic route while challenging themselves to..