Trail Running calendar near Harwich 2025-2026

We have found 152 Trailruns within 80 miles of Harwich. See below where and when you can find the races.

The ATW Odyssey 12hr Run is an exciting multi-terrain running event held in St Neots, designed for participants of all abilities. This unique experience focuses on self-discovery as runners tackle physical and psychological challenges over a scenic 7km loop. Participants can compete solo, in pairs, ..

Fen Gallop 2025 is a running event taking place in Willingham, Cambridgeshire, featuring a 10km race and a shorter 4-mile option along scenic flat country roads, footpaths, and bridleways. The event also includes a kids' run organized by the Willingham School Association. Registration opens early in..

The Bewl 15 Mile & 5 Mile event, organized by Wadhurst Runners, takes place around the scenic Bewl Water in Sussex. Participants can choose between a challenging 15-mile or a 5-mile race, both offering stunning views and a community spirit. The event supports the KSS Air Ambulance Service, with proc..

The Highwayman Trail Marathon is a unique narrative trail race set for July 6, 2025, in the picturesque villages of Thaxted, Great Sampford, and Hempstead, linked to the early life of Dick Turpin. The course is predominantly off-road, covering diverse terrains, and participants will navigate using w..

The Bishop's Stortford Mitre 10k, 5k, and 1K is a community-focused running event organized by The Bishop's Stortford High School, taking place on July 6, 2025. The event features professionally measured 10k and 5k routes through scenic East Hertfordshire villages, designed for runners of all ages a..

The Ultra:5K event returns for its ninth edition on July 13, 2025, at Box End Park in Kempston, Bedford. This unique running challenge features two options: the Ultra:5K Five, consisting of five 5K races over five hours, and the Ultra:5K Three, with three 5K races over three hours. Participants can ..

The Boudicca Way 50km Ultra is a beginner-friendly ultramarathon taking place on July 19, 2025, from Diss to Norwich along the scenic Boudicca Way Long Distance Path. This event welcomes both runners and walkers, with a limit of 220 participants and a minimum age of 20. The route features picturesqu..

The ATW St Albans Summer 10K is an exciting running event designed for the whole family, taking place in Highfield Park, St Albans. The event features a free family fun run, a warm-up session, live music, and various food options, including an ice cream van and a bar. Participants can enjoy a flat, ..

Stately Trails: Aske is a running event set in the picturesque grounds of Aske Hall, a Georgian country house located near Richmond, North Yorkshire. Participants can choose between a 5km or 10km race, traversing beautiful trails that include pasture fields, farm tracks, and woodlands. The course is..

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 1 offers participants the chance to challenge themselves with various distances, including 5k, 10k, half marathon, full marathon, or ultra marathon. Eac..

The Great Barrow Challenge Day 2, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day challenge, offering participants the flexibility to choose their distance, including options for 5k, 10k, half marathon, full marathon, or ultra m..

The Kennet & Avon Canal 145 Mile Race (KACR) is a non-stop ultra-running event taking place from Little Venice, London, to Bristol. Scheduled for July 25, 2025, this race follows scenic canal, river, and railway paths, offering participants detailed maps for navigation. Competitors, aged 20 and over..

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 3 features individual entries for various distances, including a full marathon and a half marathon, with specific routes like Kirtling and Windmill. Par..

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 4 features the Gallops route, offering participants the flexibility to choose their distance, including options for 5k, 10k, half marathon, full maratho..

The Trifarm 10k Summer Trail Run is an exciting off-road running event scheduled for July 28, 2025, as part of the Trifarm trail seasonal series. The race features a scenic 10k route that is over 95% off-road, utilizing public footpaths and bridleways around the picturesque Trifarm location in Boreh..

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 5 features the Dalham Kiln Half Route, offering participants the flexibility to choose their distance, including options for 5k, 10k, half marathon, ful..

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 6 features the Golding Hills route, offering participants the flexibility to choose their distance, including options for 5k, 10k, half marathon, full m..

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 7 of the challenge offers participants the opportunity to choose their distance, including options for 5k, 10k, half marathon, full marathon, or ultra m..

The Great Barrow Challenge, hosted by Zig Zag Running, is an exciting 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 8 of the challenge offers participants the chance to choose their distance, with options including 5k, 10k, half marathon, full marathon, or u..

August 2025

The Great Barrow Challenge, hosted by Zig Zag Running, is a 10-day running event taking place at the Suffolk Running Centre in Bury St Edmunds. Day 9 of the challenge offers participants the opportunity to choose their distance, including options for 5k, 10k, half marathon, full marathon, or ultra m..