Trail Running calendar near Welwyn 2026-2027

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 **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 multi-day Spartan obstacle event at Belvoir Castle featuring Sprint, Super and Beast races plus kids races and Hurricane Heat sessions. The Trifecta Weekend format lets racers attempt all three main distances across the same weekend.

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 roughly five-mile off-road trail run at High Lodge, Thetford Forest with chipped timing and a finishers medal. Entries are non-refundable; transfers allowed until 06/07/2026, and competitors must be 16 or over.

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.

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.

Trail races from 8 km to a 50 km ultra starting at Princes Risborough School, crossing beech woodland, ridgelines and chalk downs. Marked routes include outposts, mandatory kit for longer distances, free parking and nearby rail access.

Three waymarked routes through Mid Suffolk along the River Rat with checkpoints, refreshments and route downloads available; entries are limited and a finishers certificate is issued.

A timed 6, 12 or 24 hour loop event at High Lodge Thetford Forest for solo runners, pairs or teams of up to four. Only full laps count and winners receive trophies while all finishers get a bespoke wooden medal.

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.

MacTuffX Peterborough on 11 July 2026 pairs ten Xercises with repeated running in two distance formats, offered as Solo, Doubles or five-person Relay entries. Entrants must be 18 or over and a LITE weight division is available.

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.