Trail Running calendar near Welwyn 2026-2027

Enjoy a guided 10km group trail run through the beautiful Thursley National Nature Reserve. This flat course features a famous boardwalk and is led by an experienced guide at a steady social pace.

Part of the Northants 5K Series, Race 4 runs in Fermyn Woods Country Park on Wednesday 8 July 2026 over multi terrain through an ancient woodland. Finishers receive a bespoke 5K medal and a virtual entry option is available.

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.

Enjoy a sunset run through the beautiful woodlands and meadows of Coombe Abbey Park. This two lap trail race offers a firm course and a friendly atmosphere for a perfect Friday evening activity.

Experience an obstacle course weekend at the historic Belvoir Castle featuring Sprint, Super, and Beast distances. Tackle hills and woodland trails with over 30 obstacles available across a variety of race formats.

Enjoy a flexible midweek 7 hour time challenge along the scenic River Thames. Run any distance from 3km to an ultra marathon on a flat signed course with a great aid station and finishers medal.

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.

Test your endurance in this 24 hour multi terrain event through the London area as a solo runner or in teams. Enjoy free camping and full site facilities while completing as many 5.75 mile laps as possible.

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.

Explore the ancient woodlands and chalky ridges of the Chiltern Hills with five trail distances ranging from 8km to a 50km ultra. Enjoy a plastic free racing experience starting from the historic market town of Princes Risborough.

Explore the scenic Mid Suffolk countryside on this undulating event following the River Rat. Choose from distances of 13.5, 23, or 31.5 miles featuring historic churches and full checkpoint support.

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.

Join a guided 10km trail running adventure through the scenic Chiltern Hills. Led by experienced guides, this morning run includes trail techniques and local history with a finish at a local farm cafe.

MacTuffX Peterborough offers a unique interval based competition for adults. Choose between solo, doubles, or relay formats featuring 400m and 800m repetitions for a focused fitness test.

Join this multi-distance trail event at Bawsey Country Park featuring distances from 5k to Ultra Marathon. Enjoy a lap-based course with straightforward logistics and a finishers medal for all participants.

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.

Experience a guided 18 mile trail run through the history of Kett’s Rebellion. Follow the scenic Kett’s Country Long Distance Trail from Wymondham to Cringleford while learning about local nature and heritage.

Experience a hilly seven mile trail race or a free junior run through the landscapes of Knole Park in Kent. Enjoy a community atmosphere with bespoke medals and proceeds supporting The Running Charity.

Experience a summer trail running festival in the heart of the Surrey Hills. Choose from five distances ranging from 2km to 50km and enjoy a weekend of camping, yoga, and live music at Mill Farm.

Evening trail running at Wendover Woods on 18 July 2026 supporting the Chilterns Neuro Centre. Options include 10K 5K and an accessible 1.5K loop on fully marked woodland trails.