Hertford
Trail Running Calendar near Hertford 2026-2027
Explore the top trail runs near Hertford for 2026-2027! We've gathered 124 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
May 2027
A multi-day running festival at Hackney Marshes featuring a 21.1 km half marathon, 5K and 10K runs, an off-road trail and a free two-day festival.
Track-based event at Wodson Park on 23 May 2027 with distances from 5k to 50k plus a 6-hour timed challenge on a 400 m athletics track.
Trail event from Richmond to Brighton offering multiple distances, GPS tracking, covered rest stops, medical support, camping and finishers items.
A multi-distance endurance event at Hyde Hall Farm featuring a 5.3 km loop, a 100 mile 32 hour option, timed challenges, an aid station and on site parking.
June 2027
Two trail distances around London on the Capital Ring with feed stations, chip timing and a planned finish at Old Deer Park, Richmond.
A point-to-point trail event through the Hertfordshire AONB offering marathon, half and 10 km distances open to both runners and cyclists with separate results and medals.
A 10 km out-and-back race through gravel paths and woodland at Weald Country Park in Brentwood, organised by MCC Promotions. The event includes on-day registration, water stations, prizes and supports the charity Sport In Mind.
A forest trail event at Wendover Woods offering a hilly multi-lap 10 km course with Half Marathon, 10k and Junior Run options, on-site facilities for spectators, route maps and GPX files, and medals plus free photos for participants.
An urban ultramarathon in central London with 100km, 50km and 25km routes that pass over 100 city landmarks, with checkpoints and training resources.
A muddy 5k obstacle course at Cassiobury Park where participants climb, crawl and slide through timed waves while raising funds for cancer research.
Scenic trail half marathon across Dunstable Downs in June 2027, 21.2 km with 450 m ascent, marked route, two aid stations and a 250 runner limit.
July 2027
A 21.1 km trail race along The Ridgeway between Wendover and Princes Risborough in Buckinghamshire, fully marked with two aid stations and a 4 hour time limit.
A muddy 5k obstacle course at Fairlands Valley Park in Stevenage with staggered waves, on-site facilities, a minimum fundraising target of £50 and age 13 and over requirement.
A muddy 5k obstacle course at Hylands Park, Chelmsford on 18 July 2027 organised by Cancer Research UK to raise funds; participants must be 13 or older.