Trail Running calendar near Great Dunmow 2025-2026

Box Hill Vertical KM is a guided trail run held around Box Hill near Dorking, Surrey. The course covers about 12.5 miles with around 1000m of elevation, designed to rack up significant height in a compact distance. It traverses woodland, heathland and open fields, with hills that are technical enoug..

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 towpath. This UK Athletics certified event features flat, fast, and accurately measured courses with no elevation gain, ideal for runners seeking personal best..

The 12th Colworth Hare and Tortoise Run is a 26.3-mile, five-lap event around Colworth Estate in North Bedfordshire. Starting from Colworth House Sports and Social Club in Sharnbrook (MK44 1LB), the route combines undulating trail and unclassified roads with woodland paths featuring uneven surfaces..

The Zig Zag Running St Andrews Day Challenge is a multi-terrain 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 challenge, running multiple laps of a 5.3 km course featuring gravel footpaths and..

Surrey Hills Half Marathon is a guided trail half marathon starting and finishing in Guildford, Surrey. The 13-mile route threads through the Surrey Hills’ scenery, including St Martha’s Church and hill, the village of Shere, and Newlands Corner and Hackhurst Downs, with sections of the North Downs..

Winter on the Downs is an ultra-running event featuring two single-loop races of 55 miles and 100 miles, set in the scenic trails of East and West Sussex. Starting and finishing in Eastbourne, participants will traverse iconic landscapes, including Beachy Head and the Seven Sisters. The 55-mile rout..

Sussex Downs Trail Run takes place at Plumpton Racecourse in the South Downs National Park, Mid-Sussex, with easy access from Brighton, Haywards Heath, and Lewes. The event offers three distances: 22km, 12km, and 9km. The course starts with a flat 3.5km tree-lined warm-up, then climbs to the South D..

The Cowdray Winter Night Run, part of the Cowdray ‘Run The Seasons’ series, is a unique night-time trail running event held at Cowdray Park near Midhurst. Offering 5km and 10km distances, plus a dog-friendly canicross option, the course winds through the park, around the River Rother, and across the..

Freedom Racing's Hurtwood 50k is a 50-kilometre trail ultramarathon set in the well-known Surrey Hills. The route is a fully signed long-distance trail with extra race signage, designed as a fast, out-and-back course featuring a 5-mile loop for those up front. Competitors encounter regular checkpoin..

The Trifarm Winter Trail Run 10k is the final event in a four-round seasonal trail running series, held at Trifarm in Boreham, Essex. The course is predominantly off-road, covering over 95% on public footpaths and bridleways, and follows a mostly clockwise route designed to avoid flood-prone areas n..

The ATW Grafham Water Trail & Canicross is a scenic 10-mile trail running event held at Grafham Water Visitor Centre in Cambridgeshire. The course begins on the iconic dam, offering a fast start, then loops around the reservoir through woodland nature reserves, past Dragonfly Pond and Sanctuary Bay,..

The Mince Pie 10 is a festive 10-mile race held in Peacehaven, East Sussex, organized by Seaford Striders. The multi-terrain course features about six miles of farm tracks and bridleways, with the remaining four miles on quiet roads, including a challenging hill around mile six. Participants can exp..

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..

Winter Downs 200 is a 200-mile continuous trail race by Centurion Running. The route forms a giant loop around the South of England, taking in the North Downs Way, Vanguard Way, South Downs Way, Wayfarers Walk and St Swithuns Way, starting and finishing at Juniper Hall near Box Hill, Dorking. Runner..

Mince Pi Run - races of 2 decimal places is a 14 December 2025 off-road event at Shalford Park, Guildford. Participants choose from 3.14 to 31.4 miles (1–10 laps) on a scenic, mostly flat course with one or two hills. A Pi marathon option and a 1-mile Pi-shaped fun run for young children are offered..

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..

Let it Stow – Half Trail Marathon is a festive, 13.1-mile trail race organized by Raw Trails in Stowmarket, Suffolk. Runners traverse woodland, meadows and quiet country lanes around Stowmarket and the surrounding countryside, with several road crossings and clear course markings. The atmosphere is..

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

The Christmas Canter is a festive running event held at the Suffolk Running Centre in Bury St Edmunds. Offering multiple distance options—5k, 10k, half marathon, full marathon, and ultra—the race features a mass start and a seven-hour cutoff. The course is entirely on road, passing through picturesq..