Trail Running Calendar East of England 2025-2026

The Great Barrow Challenge Day 6, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..

The Great Barrow Challenge Day 7, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..

The Great Barrow Challenge Day 8, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..

The Great Barrow Challenge Day 9, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering individual day entries with various distances including 5k, 10k, half marathon, full marathon, and ultra marathon. Day..

The Great Barrow Challenge Day 10, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering individual day entries with various distances including 5k, 10k, half marathon, full marathon, and ultra marathon. Day..

Run Sandringham 24 is a premier 24-hour trail running event held at the scenic Sandringham Estate, the Royal Family's country retreat in Norfolk, England. Scheduled for 8-10 August 2025, the race challenges participants to complete as many laps as possible on a 5-mile multi-terrain course through th..

The Stour Valley Path 100 (SVP100) is a prominent ultra running event in the UK, featuring two race distances: 100km and 50km. The 100km race follows nearly the entire length of the scenic Stour Valley Path, starting in Newmarket, Suffolk, and finishing near Manningtree, Essex. The 50km race covers..

The Cold Norton Charity Summer Half Marathon Trail Event, scheduled for August 10, 2025, offers participants a choice between a 10km and a 13.1-mile route through the scenic countryside of Cold Norton, Essex. This charity event supports Farleigh Hospice, providing essential care for those with life-..

Letting Off Steam is a running event held at Whitwell and Reepham Railway Station, featuring 5km and 10km routes along the scenic Marriott's Way and local footpaths. The 10km race is open to participants over 15 years old, while the 5km is suitable for all ages, with under-11s requiring accompanimen..

The Gosfield Backyard Ultra is an exciting last-man-standing running event set in the scenic grounds of Gosfield School in Essex, UK. Participants must complete a 4.167-mile loop every hour until only one runner remains. The event emphasizes pacing, as runners must balance speed and endurance to avo..

The Chelmsford Brew Co Summer August Ale Trail 10K is a fun, charity-focused running event held at Brewery Fields, Great Baddow, Chelmsford. Scheduled for August 28, 2025, the 10K route is available via GPX/Strava with a narrative guide, emphasizing enjoyment over competition. Participants receive a..

The Ickworth Sunset Chase is a scenic running event held at Ickworth Park, a National Trust estate near Bury St Edmunds, Suffolk. Offering 5K and 10K distances, the race starts at sunset, guiding runners through landscaped parkland, meadows, and forest with inspiring estate views. The course feature..

Muntjac 15 is a scenic trail race that connects five beautiful woodlands, perfect for enthusiasts of hills, woods, and single-track racing. The event is designed for those who appreciate the natural landscape while challenging themselves physically. Registration for the event has closed, and it is s..

The c2c Essex Ultra is a charity ultramarathon event held along the Essex Riviera, supporting the children's cancer charity Gold Geese. Participants can choose between 30-mile and 50-mile routes, starting from Lansdowne Primary School in Tilbury and Upminster Station, respectively, and finishing at..

Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner remains able to complete the loop within the one-hour time limit. This late summer event features chip t..

The The Sudbury Trail Run will take place in Sudbury on Sunday 14 September 2025.

The Roman River Trails event offers participants the choice of a half marathon or marathon, featuring self-navigation routes through the picturesque Roman River valley near Colchester. The predominantly hard-packed trail includes sections of tarmac and grass, with several river crossings and some hi..

The Sandridge 10k is a scenic trail running event set in the picturesque village of Sandridge, near St Albans. Participants can enjoy a beautiful 10k course that showcases the natural beauty of the area. The event is organized by Active Training World, and it promises a rewarding experience for both..

The Dunstable Downs Challenge Half Marathon is a scenic, timed trail running event organized by Dunstable Road Runners, held at Creasey Park Football Centre in Dunstable. The course features a challenging route across the picturesque Dunstable Downs and surrounding rural areas, primarily on public f..

The Norfolk Coastal Trail Marathon and Half Marathon take place along the scenic Norfolk Coast Path, starting from Holme-next-the-Sea for the full marathon and Burnham Overy Staithe for the half marathon, with both finishing at Morston Quay. The routes are mainly off-road, following well-marked trai..