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 Great Barrow Challenge, hosted by Zig Zag Running, offers participants a unique opportunity to challenge themselves over ten days at the Suffolk Running Centre in Bury St Edmunds. Day 10 features the Hargrave Half Route, with options for various distances including 5k, 10k, half marathon, full m..

The Vanguard Way Marathon and Half Marathon is set to take place on August 3, 2025, featuring a scenic route that runs along part of the 66-mile Vanguard Way trail from East Croydon to Newhaven. Participants can choose between a full marathon (26.2 miles) and a half marathon (13.1 miles), both offer..

The Sussex Loops is a challenging running and walking event taking place on August 3, 2025, starting from Forest Row Village Hall in East Sussex. Participants can choose from four distances: 12, 18, 25, or 31 miles, with a maximum elevation gain of 3,250 feet. The course consists of three loops that..

Run Sandringham 24 is a premier running event taking place at the Sandringham Estate, the Royal Family's country retreat, from August 8-10, 2025. This 24-hour trail race invites participants of all abilities to run as many laps as possible on a scenic 5-mile course, while also offering a free kids' ..

The Thames Meander Summer is a scenic riverside running event organized by Hermes Running, taking place along the picturesque Thames Path. Participants can choose from three distances: a 10km, half marathon, or marathon, all starting and finishing at the Petersham & Ham Sea Scouts HQ in Richmond. Th..

The Stour Valley Path 100 (SVP100) is a prestigious ultra-running event in England, featuring a challenging 100km route that showcases the stunning landscapes of Constable Country. Starting in Newmarket, Suffolk, and concluding in Cattawade, Essex, this race is one of the longest point-to-point even..

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The Mount Ephraim 10K is a scenic running event hosted by Nice Work Race Management, set in the picturesque Mount Ephraim Gardens in Kent. This popular summer race features a beautiful 10K course that takes participants through quiet country lanes, offering stunning views of the surrounding landscap..

The Gosfield Backyard Ultra is an exciting last-man-standing running event set in the scenic grounds of Gosfield School in Essex, UK. Participants must complete a 4.167-mile loop every hour until only one runner remains. The event emphasizes pacing, as runners must balance speed and endurance to avo..

The Woldingham Full and Half Marathon is set to take place on August 24, 2025, starting at Woldingham School in Caterham. This event features an out-and-back course, with participants running once for the half marathon (13.1 miles) and twice for the full marathon (26.2 miles). Runners will enjoy sce..

September 2025

The Ickworth Sunset Chase is an exciting running event set in the picturesque Ickworth Park, a National Trust estate. Participants can choose between a 5K and a 10K race, both designed to showcase the stunning landscapes of the park, including meadows, woodlands, and newly laid limestone paths. The ..

The Muntjac 15 is an exciting trail race that connects five picturesque woodlands, perfect for enthusiasts of hills, woods, and single-track racing. Scheduled for September 7, 2025, this event offers a unique opportunity to experience the beauty of nature while challenging oneself on a scenic course..

The Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run 4.167 miles every hour on the hour until only one runner remains who can complete a loop within the one-hour time limit. This late summer edition of the Backyard Ultra feature..

The Thames Path Ultra Challenge is a premier endurance event taking place on September 13-14, 2025, along the scenic Thames Tow Path from Putney Bridge to Henley. Participants can choose from various distances, including 100 km, 75 km, 50 km, and 25 km, as well as a Henley 10K. The event attracts ov..

The Suffolk Coastal Path 50K is an ultra marathon trail run that takes participants along the picturesque Suffolk coast, starting from Lowestoft and finishing in Aldeburgh. Scheduled for September 13, 2025, this point-to-point race covers a distance of 50 kilometers, featuring a mix of paved paths, ..

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The C2C Essex Ultra is an ultramarathon event taking place in September 2025, offering participants the choice of running either 30 or 50 miles along the scenic Essex Riviera. Organized by c2c, the event aims to raise funds for the children's cancer charity Gold Geese, which provides essential suppo..

Bewl Water Autumn is a scenic bi-annual running event held near the Bewl Water Visitor Centre in Lamberhurst, Kent. Participants can choose from four courses: a 10km, half marathon, marathon, and a 50km ultra, all set against the backdrop of beautiful rural trails and quiet country lanes. The routes..

The Rye Ancient Trails 30K & 15K is a captivating trail race set in the picturesque High Weald Area of Outstanding Natural Beauty in East Sussex. Scheduled for 2025, this event features a stunning course that weaves through historic woodland and charming country lanes, starting and finishing in the ..

The Roman River Trails event offers participants the choice of a half marathon or marathon, featuring self-navigation routes through the picturesque Roman River valley near Colchester. The predominantly hard-packed trail includes sections of tarmac and grass, with some hills along the way. The event..

The The Sudbury Trail Run will take place in Sudbury on Sunday 14 September 2025.

The Lucky Horseshoe is a running event hosted at the Suffolk Running Centre in Bury St Edmunds, offering participants a choice of distances including 5k, 10k, Half Marathon, Full Marathon, and Ultra. The race features an out-and-back route, providing a social atmosphere and scenic views, including p..