Trail Running calendar near Marlow 2026-2027

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.

Trail races of 5, 10 and 15 miles through Moors Valley Country Park on 5 July 2026. The event includes chip timing, feed stations, medical support and event merchandise.

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.

A mostly off-road 6 mile trail in Bromsgrove countryside starting and finishing at Sanders Park on 5 July 2026, with marshals, water stations, park facilities and free parking; one dog per runner allowed on a lead.

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 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.

A six hour, self paced lap event at Coombe Abbey Park on a 3.3 mile loop of stone paths, meadow and tree cover. Runners choose how many laps to complete; rucking is allowed and an eco friendly tree token is available instead of a medal.

A seven hour timed event on a looped course beside the River Thames on 10 July 2026. Runners can choose distances from 3 km up to ultra and receive medals, goody bags and on course aid.

Phoenix Fridays offers a flexible Friday run with a "rock up and go" start. Choose your distance on a flat, timed 5.3km loop along the Thames towpath. All finishers can pick from a selection of signature medals.

Hazelbury Hurrah! is a Friday evening multi terrain race near Corsham on 10 July 2026, featuring a six mile main race and a two kilometre junior race. The event supports local charities and is Trail Running Association licensed.

A 24-hour multi-terrain relay or solo race near RM13 with teams of 2 to 8, repeated 5.75 mile laps, free camping and on-site catering, showers and first aid. Entry fees are published from £89 to £110.