Trail Running calendar near Sudbury 2025-2026

The Petzl Night Trails 10K at Salcey Forest is a unique night-time trail running event held near Northampton. Participants run a fully marked, two-lap 10k course on crushed stone paths through the flat but atmospheric forest, guided only by their head torches—Petzl, the event’s sponsor, provides top..

The Dormouse Challenge is a 6-hour running event held at the award-winning Salcey Forest in England. Participants run multiple laps of a 3.5-mile off-road loop through well-maintained forest paths, with terrain consisting mainly of crushed stone and forest floor, offering a natural trail experience..

The Zigzag Turkey Trot Challenge is a six-hour timed running event held at the Suffolk Running Centre in Bury St Edmunds. Participants start together and run as many laps as possible on the undulating, multi-terrain Back Quack route, with an aid station available each lap. The event caters to all le..

The RunUk Kingston 10k is a scenic running event starting and finishing at the Kingston Hawker Centre in Surrey. The course takes runners through the streets of Kingston and along the picturesque river towpath, offering a vibrant atmosphere supported by local organizations. Participants receive a fi..

The ATW Wendover Woods Trail Run & Canicross is an exciting event set in the picturesque Wendover Woods, offering participants a chance to challenge themselves on scenic trails. Scheduled for November 23, 2025, the event features various distances, including a 5K, 10K, and Half Marathon trail run, a..

The Box Hill Vertical KM is a challenging guided trail run located in Box Hill, Dorking, Surrey. Covering approximately 12.5 miles with an elevation gain of around 1000 meters, the route is designed to maximize climbing over a short distance without repetitive hill reps. Participants traverse divers..

The Maverick Exposure Lights Dark Oxfordshire is a unique night trail running event held at Stonor Park, nestled in the Chiltern Hills near Henley-on-Thames. Participants can choose from three challenging routes—17 km (long), 12 km (middle), and 7 km (short)—all set within the scenic estate home to..

The Maverick Original Oxfordshire is a trail running event held at the historic Stonor Park estate near Henley-on-Thames, Oxfordshire. Set within the Chilterns Area of Outstanding Natural Beauty, the race offers three challenging routes: 22 km (long), 12 km (middle), and 7 km (short), featuring elev..

The Riverside Marathon & Half Marathon, organized by Phoenix Running, takes place in Walton on Thames, Surrey, along the scenic River Thames. The event features accurately measured and UK Athletics certified routes, with runners completing 4 laps for the half marathon or 8 laps for the full marathon..

The St Andrews Day Challenge, organized by Zig Zag Running, takes place at Brandon Country Park in Suffolk, located in the heart of Thetford Forest. This multi-terrain event features a 5.3 km loop of gravel footpaths and grass areas. Participants can choose between a 6-hour or 4-hour timed challenge..

The Surrey Hills Half Marathon is a scenic 13-mile guided trail run starting and finishing in Guildford, Surrey. The course showcases the stunning landscapes of the Surrey Hills, including landmarks like St Martha's Church and hill, the village of Shere, Newlands Corner, and Hackhurst Downs. Runners..

The Hurtwood 50K, organized by Freedom Racing, is a popular late-season ultra running event held in the scenic Surrey Hills. This 50-kilometer trail ultra features a fully signed long-distance route with additional race signage, ensuring clear navigation. The course includes a fast and exciting out-..

The ATW Grafham Water - Trail & Canicross is a scenic 10-mile trail running event set around the picturesque Grafham Water in Cambridgeshire. Participants will enjoy a route that begins on the iconic dam and winds through beautiful trails, including a Woodland Nature Reserve and Sanctuary Bay. The e..

Bauble Bimble is a festive running event held at Ferry Meadows, a large country park near Peterborough, UK. Participants run laps of a 5.3 km multi-terrain course featuring gravel footpaths and grassy areas through the scenic park. The event offers a 6-hour or 4-hour timed challenge where runners ca..

The Winter Downs 200 is a challenging 200-mile continuous trail run held in South East England, starting and finishing at Juniper Hall, Dorking. Scheduled for December 10-14, 2025, the race forms a large loop incorporating five major trails: North Downs Way, Vanguard Way, South Downs Way, Wayfarers..

The Mince Pi Run - Races of 2 Decimal Places is a unique running event held at Shalford Park, Guildford, featuring distances from 3.14 to 31.4 miles, corresponding to 1 to 10 laps of a scenic, mostly flat off-road course with a few hills. There is also a Pi marathon option and a 1-mile fun run shape..

The Salcey Forest Christmas 10K, 5K & Junior Fun Run is a festive trail running event held in Salcey Forest, Northamptonshire. Set amidst beautiful, tree-lined woodland paths, the race offers a virtually flat, mixed-terrain course that can be occasionally muddy. Participants can choose between a 10K..

The Let it Stow Half Trail Marathon is a festive-themed 13.1-mile trail race held in Stowmarket, Suffolk, showcasing scenic views of the town and Mid-Suffolk countryside. The course features a mix of woodland, meadows, and quiet country lanes, with well-marked routes using arrows and hi-vis tape. Th..

'Twas The Run Before Christmas is a festive running event held at Brandon Country Park in Suffolk, located in the heart of Thetford Forest. Participants can choose between a 6-hour or 4-hour timed event, running multiple laps of a 5.3 km multi-terrain course featuring gravel footpaths and grass area..

The Christmas Canter is a festive running event held at the Suffolk Running Centre in Bury St Edmunds, UK. Offering multiple distance options—5k, 10k, half marathon, full marathon, and ultra marathon—runners can choose their preferred challenge. The course is entirely on road, featuring rolling hill..