Trail Running calendar near Welwyn Garden City 2026-2027

Race 2 of the Orion Harriers Forest Five series takes place on 04 July 2026 at Jubilee Retreat as part of a three-race series with age-category aggregate trophies and prizes for individual and team placings.

A muddy 5k obstacle course at Kempton Park Racecourse where participants climb, crawl and slide through the course. The event uses staggered waves, has a minimum age of 13 and includes a medal plus fundraising support.

A 5k obstacle course at Mote Park, Maidstone, with climbing, crawling and sliding across grass, lake-side paths and cross-country terrain. Entry has an age limit of 13+, published fees, a minimum fundraising target and on-site facilities.

A 24 hour challenge on a 1 mile loop at Nuneaton Harriers track where runners complete one mile each hour for 24 consecutive hours, with a substantial finisher's medal for completers and limited attended places.

Fen Gallop on 5 July 2026 in Willingham offers chip timed 10K and a 4 mile route across flat country roads and bridleways, with a kids 1 mile race and activities to support local charities.

A 21.1 km trail race along The Ridgeway between Wendover and Princes Risborough in Buckinghamshire, with 526 m of ascent, two aid stations and a four hour time limit. Entry is capped at 350 runners and the race is a UTMB World Series index..

A community road race at Jobbers Wood with professionally measured 10k, 5k and a 1k junior race, chip timing, free finisher T-shirts or tree planting options, and fundraising for new school sports facilities.

Two trail races around Bewl Water in East Sussex offer a full 15 mile loop including the nature reserve and a 5 mile off road return route. The event supports the regional air ambulance and includes a finisher medal and commemorative t shir..

A women only trail event at Denbies Wine Estate in Surrey on 5 July 2026 offering 50K, 25K, 10K and a kids race. No cut offs and options for in person or virtual participation, with profits supporting the SheRACES mission.

A six hour endurance run on a scenic 5k loop at Marston Lodge in Marston Trussell. Fully chip timed with solo, pair, and team entry options so runners complete as many laps as they can in six hours.

Ware Festival of Running stages a 10 mile, a 10k and children's races along the River Lee Navigation on Sunday 5 July 2026, with all proceeds to Essex & Herts Air Ambulance and adult finishers receiving a T-shirt and medal.

A Pretty Muddy 5k obstacle course at Fairlands Valley Park in Stevenage with mixed paved and grassy terrain. Participants aged 13 and over take staggered waves, with on-site parking, basic facilities and accessibility support.

Oaks Trail at Rivenhall Oaks golf centre on 05 Jul 2026 offers two unmarked routes of about 6.5 or 3.5 miles, with entry fees split by England Athletics affiliation and proceeds donated to Essex and Herts Air Ambulance Trust.

A community trail run hosted by Muslim Runners in Epping Forest on July 5, 2026. Multiple pace groups and a 30 minute walking option, with bag drop and coffee afterwards at Butlers Retreat.

A 10 km group trail run across Thursley National Nature Reserve in Surrey, set on mainly flat heathland and boardwalks. Evening and night options include headtorch runs and there may be an alcohol free beer at the end.

Race 4 of the Northants 5K Series takes place at Fermyn Woods Country Park on 8 July 2026, featuring a multi-terrain 5 km route through ancient woodland. Limited paid parking is available and series medals are awarded to finishers.

An off‑road two-lap race through Hainault Forest organised by Ilford Athletic Club on 8 July 2026, supporting St. Francis Hospice and forming Leg 5 of the Elvis Grand Prix.

A 6-hour timed run along the flat Jubilee River in Slough on July 9, 2026. Participants complete laps of 5.24 miles, choosing their own distance. Every finisher gets a medal.

A **10 km** off-road trail run at Trifarm near Boreham on 25 June 2026, run mostly on public footpaths and bridleways. The route is anticlockwise, finishes with a lap around the lake, and offers on-site parking and on-registration water.

A *10 km* trail race at Coombe Abbey Park on 10 July 2026, run over two laps through woodland, meadow and grass with on-course water and basic facilities. Tiered entry fees apply and optional charity donations are available.