Trail Running calendar near Harwell 2026-2027

A mixed terrain half marathon and 10k in England on 30th May 2026. Routes mix quiet country roads and off road sections, and the event raises money for local good causes.

A track running event at Wodson Park on 31 May 2026 with distances from 5k to a six hour challenge. Chip timing, aid stations, a bespoke medal and limited entries are provided.

Races at Southampton Common include Half Marathon, 10k, 5k and a junior race on a multi-lap course through woodland, wetlands and parkland, with kilometre markers, marshals and an event village offering food and partner giveaways.

A point to point 50 km ultramarathon on 31 May 2026 from Peckham in London to East Peckham in Kent. The route moves from urban streets into rural lanes and includes aid stations, volunteers and clear course marking.

A 5k, 10k and junior race at Sixfields Stadium in Northampton on Sunday 31 May 2026. The start and finish are inside the stadium and the route continues on closed roads around the town.

Charity 3k and 5k runs at Dunorlan Park on 31 May 2026, for ages 16 and over; mixed-terrain course with lakeside start and basic onsite facilities.

Approximate 6k through Blaise Castle Estate on tarmac, grass and trails with hills and estate views. Club house refreshments follow and prizes are awarded for individual places, age categories and teams.

A guided 13 mile trail run around the Surrey Hills starting and finishing in Guildford, with routes that include St Martha's Church, Shere and sections of the North Downs Way. Weekend dates and a midsummer evening option are available.

A six hour lap based event from Braybrooke Taproom on well surfaced trails along the Griffin Trail and Brampton Valley Way, with free parking, onsite toilets and a taproom for post run refreshments.

Join this two lap 10km trail race at Kinver Edge featuring local tracks with plenty of elevation changes. This event supports canicross runners and offers a no frills racing experience in a scenic outdoor setting.

A timed riverside event on a 5.3 km out and back Thames course where runners choose how many laps to complete within a seven hour limit. Ten pound entry supports the Rays of Sunshine charity and a double sided medal is awarded.

A 24-hour relay at Wasing Park, Reading on 6–7 June 2026 with Solo, Pair, and Team entries on an 8 km trail lap, event camping and an event village, plus charity entry options and tiered team pricing.

A sold out Backyard Ultra at Chilton Manor Farm near Chilton Candover, Hampshire. Runners repeat a 4.16666 mile loop each hour until the last runner completes a lap.

Run laps through Denbies Wine Estate in the Fire Horse Run, a timed off road challenge on an undulating 5.3 km loop with distances from 5 km to ultra. Pick as many laps as you like within a seven hour window for a flexible, scenic race day.

A 46 mile circular run or walk around Cambridgeshire starting and finishing at RAF Wyton, visiting former RAF Pathfinder Force airbases. Options for solo completion or team relay, with eight checkpoints and an included t shirt and medal.

Experience the beauty of Ardingly Reservoir during this relaxed midsummer sunset run. Choose between a 5K or 10K distance on an undulating trail course featuring scenic water views and a fully stocked aid station.

Test your endurance at MacTuffX Sutton Coldfield with 400m and 800m interval repetitions. Choose between solo entries, doubles, or relay teams for this intense fitness event designed for participants aged 18 and over.

A 12 hour backyard ultramarathon at Bakehouse in Bristol on 6 June 2026. Participants run one lap each hour on 3 km, 4 km, 5 km or 6 km loops, with bike and row erg options available, raising funds for Andy's Man Club.

A three-race Forest Five (mile) series at Jubilee Retreat on 6 June, 4 July and 1 August 2026, with single-race and discounted series entry, age-category aggregate trophies and a third-race ELVIS fixture with team prizes.

Trail running and rucking in the Mendip Hills near Winscombe on June 6, 2026. Choose 8 km or 14 km, race in Pro or Open categories, and use a provided GORUCK Rucker 4.0 for ruck entries.