Trail Running Calendar East of England 2025-2026

Tackle scenic but hilly forest trails at the Wendover Woods Half Marathon and 10k on 14 June 2026, with a friendly junior run and on the day entries if available. Spectators can enjoy a cafe, forest walks and family activities.

Run through Hertfordshire countryside from 3 Brewers Brewery with 10 km and 5 km options over mostly off road trails, woodland and farm tracks. Finish with a medal, chip timing, a pint and live jazz for a festive post race vibe.

The Summer Solstice Challenge - Colchester will take place in Colchester on Sunday 21 June 2026.

Take on the Dunstable Downs Half Marathon, a scenic 21.2 km trail with steep climbs and panoramic countryside views. Limited to 300 runners, this rugged UTMB World Series qualifier promises a memorable off road challenge.

Run Sandringham on 21 June 2026 and enjoy scenic 5K and 10K routes through the royal estate, blending trails and quiet roads. Expect chip timing, a bespoke medal, finish goodies and marshals for a polished race day.

Tackle a full marathon over three days at the Colworth Marathon Challenge on the scenic Colworth Estate. Choose one, two or all three races and enjoy free camping, family entertainment and children's races for a festival feel.

Take on farm trail laps at Hyde Hall Farm with distances from 5k to ultra, including a Heavy Half option. On site parking and a bespoke finisher medal make for a friendly, flexible event.

Take on the Full Essex Way Ultra, an 82 mile journey from Epping tube station to Harwich lighthouse across varied trails, tracks and roads. With just 65 places and a 24 hour cut off, this iconic challenge supports Essex Wildlife Trust.

Join the Bishop's Stortford Mitre on 5 July 2026 for community 10k, 5k and a fun 1K kids race on traffic free country lanes at Jobbers Wood. Support the Mitre Fund and enjoy chip timing, a finisher T shirt or a tree planted in your name.

Fen Gallop 2026 is a scenic running event held in Willingham, Cambridgeshire, featuring flat, multi-terrain courses along country roads, footpaths, and bridleways. Participants can choose between a 10K race or a shorter 4-mile option, both..

Ultra:5K Kempston is held at Box End Park, Box End Rd, Kempston MK43 8RQ. The event, scheduled for Sunday 12 July, offers a simple but challenging format: participants run a 5K on the hour, every hour, for five hours. A three-race option is..

Join the Norfolk Festival of Running at Bawsey Country Park for looped sand, gravel and grass trails with distances from 5k to ultra marathon. Small field, lap based courses with on site aid and parking included for a relaxed race day.

Camp and run for 24 hours on the scenic Shotley peninsula in Suffolk, tackling a fully marked 4.3 mile coastal lap with solo, pairs or team entries. Enjoy onsite camping, yoga sessions, sauna options and bespoke vests and medals.

Run the ATW St Albans Summer 10K on 19 July 2026 at Highfield Park for a chip timed 10 km along the Alban Way, with a free family fun run. Festival vibes with live music, kids activities, food stalls and a custom medal while supporting Alzh..

Run ten consecutive days at the Suffolk Running Centre in the Great Barrow Challenge, choosing distances from 5 km to ultra. Entry covers all ten days and parking, bespoke medals each day and the event is cupless so bring your own bottle.

Zig Zag Running hosts the Great Barrow Challenge at the Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX. This 10-day, individual event offers multiple distances — 5k, 10k, half, full and ultra — with Day 1 featuring the Denha..

Run the scenic Stour Valley Path in 102 km or 50 km trail races on 8 Aug 2026, mostly off road through East Anglia. Friendly, challenging courses that earn UTMB index points and suit experienced ultrarunners.

Tackle ATW Odyssey12 at Riverside Park, St Neots, a multi terrain lap event where solo runners, pairs or teams rack up 5.3 km laps against the clock. Enjoy festival vibes with live music, food, kids activities and an Odyssey medal for finis..

The Black Bull 15 is a charity trail run held near the Black Bull pub in Chelmsford. It offers two distances: a 15-mile trail route and a 15km option for shorter, faster runs, jogs or walks. The course uses varied trail surfaces through par..

Gosfield Backyard Ultra : event overview Gosfield Backyard Ultra is a last-man-standing running event held at Gosfield School, Halstead Road, Gosfield CO9 1PF, Essex, UK from 29 August 2026 to 31 August 2026. Entry is limited to 100 places...