Trail Running calendar near Chelmsford 2025-2026

The North Downs 50 Ultra Challenge is a 50km trail event set in the scenic Surrey Hills, starting and finishing at the Guildford basecamp. Participants can walk, jog, or run on a looped course that features the North Downs Way and offers stunning southern views. The event also includes 25km and 10km..

Ultra:5K is a unique running event held at Box End Park, Kempston, near Bedford, Great Britain. The challenge involves running multiple 5K races on the hour, every hour, with two options: five 5K races over five hours (25 km total) or three 5K races over three hours (15 km total). The event emphasiz..

The Thackray Williams Sevenoaks 7 is a celebrated 7-mile trail race held annually in the scenic Knole Park, Sevenoaks, Kent. Marking its 30th edition in 2025, the course features challenging hills, multi-terrain paths, and picturesque woodland trails, offering an exhilarating experience for runners..

The Surrey Hills 10km is a guided trail run set in the picturesque Surrey Hills Area of Natural Beauty, starting near Guildford at St Martha's Hill. The 10km course features a scenic climb to the hilltop church with panoramic views, followed by a route through Newlands Corner, the historic Pilgrims..

The Chelmsford Brew Co Summer 10k Trail Run is a fun, non-competitive event held in Chelmsford, Essex, starting and finishing at the Voodoo Keller Bar. The trail run features a scenic route to the Chelmsford Brew Co brewery, where participants enjoy a drink break before returning to the bar for more..

The Hughenden Valley 10K is a popular trail running event held around the National Trust's Hughenden Manor estate near High Wycombe. The 10-kilometer course features a hilly terrain with over 195 meters of elevation gain, offering a challenging yet rewarding experience through beautiful woodland and..

The Hughenden Valley Half Marathon is a scenic trail running event held at Hughenden Manor in the Chiltern Hills, UK. Covering 21.1 km with over 450 meters of elevation, the course winds through woodland trails and rural paths around the National Trust's historic estate. Runners face several hills a..

The Maverick X Series Chilterns 2025 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 four challenging routes ranging from 12 km to an ultra 52 km, featuring significant e..

The Humanity Direct Chiltern Challenge is a one-day ultra running event held in the scenic Chiltern Hills, starting and finishing at Princes Risborough School, near London. Participants can choose from three distances: 10km, 25km, or 50km, catering to all levels from beginners to experienced ultra r..

The Boudicca Way 50km Ultra is a beginner-friendly ultramarathon held in Norfolk, England, following the scenic Boudicca Way Long Distance Path from Diss to Norwich. This 50km trail race passes through charming villages such as Pulham Market, Fritton, Saxlingham, Stoke Holy Cross, and Caistor St. Ed..

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 Winwick Hall Trail Races, held at the scenic Winwick Hall Estate in Northamptonshire, offer fully marked and marshaled trail running events including 10k and 5k distances, plus a 2k children's fun run for ages 4-12. The courses feature varied terrain such as grassland, country paths, and hard-pa..

Bright Skies Surrey Hills is an exciting daytime trail running event held at Denbies Wine Estate in Dorking, Surrey. The event features a marathon, half marathon, and 10K race, including Canicross (dog running) options, as well as 1K and 2K races for children aged 3 to 12. The course offers an undul..

The Surrey Slog, also known as the Holmbury Hill Challenge, is a challenging trail running event held in the scenic Surrey Hills near Peaslake. The race features a hilly, undulating multi-loop cross-country course primarily on tracks around Holmbury Hill, with well-marked routes and marshalled key p..

The Ashdown Forest 10 & 5 Mile Series is an eco-friendly trail running event held at Pippingford Park Manor in East Sussex. This two-race series offers 10-mile and 5-mile distances across undulating, multi-terrain forest trails featuring picturesque scenery. Designed to provide a guilt-free, sustain..

BigHeat Trails (FIRE) is the third event in the Classic Element Trail Series, held at Rother College in Midhurst, Surrey. Inspired by the element of fire, this trail running event offers two challenging single-lap distances: a marathon and a 16-mile run. The course features winding dusty tracks, sun..

The Great Barrow Challenge Day 1, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event offers runners the choice of distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to run at their own pace. Day 1 feat..

Stately Trails: Aske is a scenic running event held at Aske Hall, a Georgian country house near Richmond, North Yorkshire. Participants can choose between 5km and 10km trail races, or a 5km walk, all set within the exclusive estate's beautiful grounds featuring parkland, woodland, pasture fields, an..

The Great Barrow Challenge Day 2, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day series offering individual day entries with multiple distance options including 5k, 10k, half marathon, marathon, and ultra marathon. Day 2 featur..

The Kennet & Avon Canal 145 Mile Race (KACR) is a challenging non-stop ultra running event held in the UK, covering 145 miles from Little Venice, London, to Bristol. The route follows easy-to-navigate canal, river, and railway towpaths, including the Grand Union Canal, Jubilee River, River Thames, K..