Sutton-in-Ashfield Harriers & AC

Tentsmuir Forest 8-Hour Challenge: A Test of Endurance Through Captivating Woodland Trails Runners seeking to push their physical limits will find a thrilling off-road adventure in the Tentsmuir Forest 8-Hour Challenge. Navigate the scenic woodland paths of this East Midlands locale, completing as many 4.366-mile laps as possible within the time frame. This challenge is a true test of stamina, welcoming both seasoned ultrarunners and those eager to take on a new endurance-based pursuit.

The RNLI Tower Run stands as a thrilling challenge in the heart of London, inviting endurance-seekers to scale the iconic 22 Bishopsgate's 58 floors and over 1,500 steps. This fundraising event, supporting the heroic volunteer crews of the Royal National Lifeboat Institution (RNLI), tests the mettle of participants as they conquer the UK's tallest and toughest tower run, all while contributing to the lifesaving efforts along the coast.

Mudfest Rosliston Forest - November Mudfest on 7 November 2025 is a 4-hour running challenge event in Rosliston Forest, 5 miles south of Burton-on-Trent. Runners have 4 hours to complete as many loops of the 4.38km course as they can. The route runs through a mix of forest trails and single tracks. Underfoot you’ll have a mix of natural woodland, gravel tracks and it will be muddy. Complete 5 laps and you have done a half marathon, 10 laps, a full marathon, and 11 laps will be classed as an Ultra. You may attempt to complete as many laps as possible over the full 4 hours, or you can choose to finish just one, either way, you will be a finisher and receive a bespoke medal.

Venture through the picturesque trails and roads of Burnham-on-Sea in the Brent Knoll Multi Terrain Race. This challenging 6-mile off-road event, organised by the Burnham-on-Sea Harriers, features steep ascents and descents, making it a true test of endurance and agility for adventurous trail runners.

Venture into the captivating Haldon Night Run, an exhilarating off-road trail event set in the picturesque East Midlands region. Choose from a thrilling 10K loop or a shorter 5K course, both featuring reflective markers and requiring the use of headlamps to navigate the trails. Whether you're a seasoned Canicross runner or a family with children aged 3-11, this night-time challenge promises an unforgettable experience.

Lace up for an unforgettable adventure at the Running Tribe Race: January in the scenic East Midlands. Runners of all abilities can choose from a range of distances, from a challenging 10K to a gruelling 40-mile ultra, all set against a backdrop of mixed terrain. This flexible, cup-free event promises the ultimate test for those seeking to push their limits. Secure your spot now and get ready to conquer the trails and roads of Chalfont St Peter.