Trail Running calendar near Welwyn 2025-2026

We have found 368 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

The Swan Challenge is a unique trail running event held at Coombe Abbey Park, offering participants the flexibility to run as many 5k laps as they wish within a 6-hour time limit. This event caters to all abilities, allowing runners to set their own goals, whether it's completing a single lap or pus..

The Summer 10K is an exciting running event hosted by Big Bear Events, taking place in the scenic Coombe Abbey Park, Coventry. This race offers participants a chance to enjoy a beautiful course that winds through woodlands, meadows, and grassy fields, providing a picturesque backdrop for runners. Th..

The Wibbly Wobbly Log Jog is an exciting trail running event set to take place at High Lodge, Thetford Forest, featuring a scenic five-mile course suitable for runners of all abilities. This event, part of the Breckland area, offers chipped timing and is designed to provide a fun and engaging experi..

The Maverick X Series Cotswolds 2025 is a premier trail running event set in the stunning Cotswold Hills, starting from the historic Sudeley Castle. Celebrating its 10th year, the event offers four challenging routes: Ultra (51 km), Long (43 km), Middle (23 km), and Short (15 km), each showcasing th..

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Race to the Stones is the UK's largest ultramarathon, taking place along the historic Ridgeway, leading participants to the ancient Avebury Standing Stones. Scheduled for July 12-13, 2025, the event offers a challenging 100km route that can be completed non-stop or over two days, with a basecamp for..

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The North Downs 50 Ultra Challenge is a premier endurance event set in the scenic Surrey Hills, featuring a 50 km loop starting and finishing at Guildford Basecamp. Participants can choose from various distances, including 25 km and 10 km options, making it accessible for all experience levels. The..

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The Ultra:5K event in Kempston presents a unique and challenging running format where participants run a 5K on the hour, every hour, for five consecutive hours. Additionally, there is a three-race option available. The competition aims to determine the fastest cumulative time over either the five or..

The Thackray Williams Sevenoaks 7 is a celebrated running event taking place in Knole Park, Kent, marking its 30th edition in 2025. This challenging 7-mile race features scenic trails with hills and twists, appealing to both competitive runners and casual participants. Additionally, a 3.5km chip-tim..

The Surrey Hills 10km is a scenic guided trail run set in the stunning Surrey Hills, starting near Guildford. This event is designed for both novice and experienced runners, offering a beautiful route that includes a climb up St Martha's Hill for panoramic views, followed by a descent through the pi..

The Chelmsford Brew Co Summer 10k Trail Run is a fun, non-competitive event scheduled for July 17, 2025. Participants will follow a GPX/Strava route, with a checkpoint at the brewery where they can enjoy a drink and relax before continuing. Entry includes a beverage at the brewery and another at the..

The Hughenden Valley 10K is a popular trail running event set in the picturesque surroundings of the National Trust's Hughenden Manor estate near High Wycombe. Scheduled for July 19, 2025, this challenging race features a hilly 10K course that combines woodland and rural trails, making it suitable f..

The Pewsey Vale Ultra is an exciting new running event featuring a challenging 125km loop through the picturesque Wiltshire countryside, following the Pewsey Vale Circular walk route. Participants will experience a total ascent of 1902m, with the course well-marked and supported by checkpoints every..

The Humanity Direct Chiltern Challenge is a one-day endurance event set in the picturesque Chiltern Hills, offering participants the choice of running distances of 10 km, 25 km, or a full 50 km ultra marathon. This event not only provides a challenging experience for both novice and seasoned runners..

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 traverses picturesq..

The Hughenden Valley Half Marathon is a scenic trail running event set in the picturesque surroundings of Hughenden Manor and its woodlands. Scheduled for July 19, 2025, this half marathon covers a distance of 21.1 km, featuring a challenging course with several hills that promise a rewarding finish..

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The Maverick X Series Chilterns 2025 is an exciting trail running event set in the picturesque Stonor Park, known for its historic manor house and ancient deer herd. Participants can choose from four challenging routes: Ultra (52 km), Long (42 km), Middle (22 km), and Short (12 km), all featuring st..

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BigHeat Trails (FIRE) is the third event in the Classic Element Trail Series, celebrating the element of Fire. This trail running event features two challenging single-lap courses through the scenic landscapes of Thursley and Hankley Commons, with options for a 16-mile run or a marathon distance. Pa..

The ATW St Albans Summer 10K is an exciting running event designed for the whole family, taking place in Highfield Park, St Albans. The day kicks off with a free family fun run, followed by activities in a vibrant event village featuring a kids zone, live music, and refreshments from the Cow Juice C..

The Surrey Slog, also known as the Holmbury Hill Challenge, is a challenging trail half marathon set in the picturesque Surrey Hills. Scheduled for July 20, 2025, the event features a hilly, multi-loop cross-country course primarily on tracks around Holmbury Hill. Participants can choose between a f..

The Winwick Hall Trail Races offer a scenic running experience on the trails surrounding the Winwick Hall Estate, featuring 10k and 5k races, along with a 2k fun run for children aged 4-12. These fully marked and marshaled events cater to both novice and experienced trail runners, showcasing a mix o..