Trail Running calendar near Croydon 2026-2027

A Pretty Muddy 5k obstacle event at Fairlands Valley Park with mixed terrain, staggered wave starts and on-site facilities. Participants must be 13 or older and receive event support plus a finisher medal.

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.

An evening 10 km trail run through Thursley National Nature Reserve, crossing heathland, bog and woodland and featuring the boardwalk named Britain's Favourite Path. The event is organised by Running Adventures and is aimed at trail newcome..

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.

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 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.

A 24 hour multi terrain relay or solo race near Romford where competitors run repeated 5.75 mile laps in teams of two to eight, with one runner on course per team; camping and event services are available on site.

Follow Britains oldest trail through 5000 years of history on the Ridgeway. Choose between 50km or 100km distances and finish at the iconic Avebury Standing Stones with full medical and snack support.

An inflatable obstacle course event in Southampton on 11 July 2026 offering 2.5k, 5k, 10k and 15k options with giant inflatables, music zones, a mid route water station and a finisher medal for each participant.

Trail running event at Princes Risborough across the Chiltern Hills offering distances from 8 km to 50 km. Routes run through beech woodland and ridgelines with outposts offering snacks and self-serve water.

LDWA Norfolk & Suffolk's Rodent Wriggle offers three scenic routes (13.5, 23 and 31.5 miles) from Needham Market Community Centre with checkpoints, refreshments and a finisher's certificate; entries are limited and must be prebooked.

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.

A guided morning trail run through the Chiltern Hills covering 10 km from Church Farm Cafe, Aldbury, with Run Leaders, trail instruction and bag storage. Entry is limited to 50 places and tickets are £23.

A lap based timed run at Mowsbury Park on 11 July 2026 offering distances from 5 km up to ultra with a flexible one hour start window and a choice of medal or lower cost no medal entry. Places are limited to 75.

A 5k obstacle course through Abington Park on 11 July 2026 featuring climbing, crawling and sliding obstacles. The event uses staggered wave starts, has a minimum fundraising target and limited accessibility for wheelchair users.

A muddy 5k obstacle course at Beckenham Place Park where participants climb, crawl and slide across grass and paths with steep inclines. Open to ages 13 and over with a published fundraising target and event facilities on site.

Ultra:5K challenges runners at Box End Park in Kempston. The format requires running a 5K on the hour, either five times or three times. The fastest total time across all the runs wins.

A seven mile multi terrain trail race through Knole Park on 12 July 2026, with a chip timed 3.5 km junior event for ages 9 to 15. Profits support The Running Charity and prizes include medals, trophies and cash for course records.

A Race for Life event at Abington Park on 12 July 2026 offering 3k, 5k and 10 km routes through park paths and grass. The course is not wheelchair accessible and event parking is on grass.