Trail Running calendar near Grantchester 2026-2027

A 5k obstacle course at Fairlands Valley Park where participants aged 13 and over climb, crawl and slide through muddy challenges while fundraising for Cancer Research UK. The mixed grass and paved course includes staggered wave starts and..

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.

Community social trail run in Epping Forest organised by Muslim Runners at the Epping Forest Visitor Centre at Chingford. Pace groups cover runs of 6.5 km and 3 km and a 30 minute walking group, with bag drop and coffee afterwards.

A flat 10 km trail run through Thursley National Nature Reserve near Thursley, Surrey. Group runs include dusk and night options with headtorch guidance, an entry fee of £22 per person, and kit and torch support available.

A multi-terrain 5km in Fermyn Woods Country Park on Wednesday 8th July, part of the Northants 5K Series. Limited parking, bespoke finishers medals and a virtual completion option are available; entries close 23:59 on Tuesday 7th July.

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.

The Phoenix Running - Slough will take place in Slough on Thursday 9 July 2026. You can run 5 miles.

A mostly off road 10 km trail at Trifarm, Boreham on 09 Jul 2026, run on public footpaths and bridleways with on-site parking, numbered registration at the entrance, and a finish around the lake running track.

Summer 10k at Coombe Abbey Park on 10 July 2026 is a 10 km trail run over two laps of woodland and meadow with four water station visits. Onsite toilets and low cost parking are available and there is an option to receive a tree token inste..

A six-hour trail event at Coombe Abbey Park where participants complete as many 3.3 mile laps as they choose within a timed window. The route is mainly stone pathways with a meadow section, on-site parking, cafe and toilet facilities.

Midlands Spartan Weekend at Belvoir Castle runs Jul 10 to 12, 2026 with Sprint, Super, Beast and kids obstacle races. It is a Trifecta Weekend allowing completion of the three main distances in one weekend.

A 7 hour timed event on a signed Thames loop at Wraysbury Skiff & Punting Club in Egham where runners choose distances from 3 km upward. Medals, goody bags and aid station support are provided with age and distance rules in place.

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.

A roughly five mile off road trail run at High Lodge Thetford Forest with chipped timing and a finishers medal. Entries are non refundable but transfers to another runner are allowed until 06/07/2026.

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.

A trail ultramarathon from Lewknor to Avebury in Oxfordshire with 100 km and two 50 km stage options, following the Ridgeway through historic sites and offering pit stops, chip timing and basecamp facilities.

Trail running event on 11 July 2026 from Princes Risborough into the Chiltern Hills, offering routes from 8 km to 50 km across beech woods, ridgelines and chalk downs with marked outposts and timed results.

Three measured routes through Mid Suffolk countryside on 11 July 2026, including a 31.5 mile option that passes 10 historic churches. Shorter routes branch off the main course and rejoin for a common finish with checkpoints and refreshments..

Timed non stop runs of 6, 12 or 24 hours on the Backyard route at High Lodge Thetford Forest. Enter solo, as a pair or a team of up to four; camping onsite, timing by Timing Monkey and a bespoke wooden medal for all.

Enjoy a flexible timed running event along the flat River Thames towpath. Choose your distance from 5km to an ultra marathon and earn a bespoke spinning medal on this fast riverside course.