Trail Running calendar near Mortimer Common 2026-2027

An inflatable obstacle-course run in Bristol on Saturday 30 May 2026 spanning a 5 km route. The organisers describe the 2026 edition as larger and more bouncy, with 42 recent bookings reported.

A 60 km point to point ultramarathon from Ivinghoe Beacon to Ridgeway View Campsite on 30 May 2026. The route covers about 1000 m of ascent, includes four checkpoints with supplies and has a 10 hour time limit.

A multi-format track event in Twickenham on 30 May 2026 featuring ten-repeat formats at 400 m and 800 m, with solo and team entry options and age restriction of 18 and over.

A muddy 5k obstacle course at Baiter Park on 30 May 2026 where participants climb, crawl and slide around a mixed grass and tarmac route. The event supports fundraising for cancer research and is for ages 13 and older.

A Pretty Muddy 5k obstacle event at Royal Windsor Racecourse on 30 May 2026, featuring muddy obstacles to climb, crawl and slide. Participants must be 13 or older; there is a minimum fundraising target and on-site support and facilities.

A track running event at Wodson Park offering distances from 5k up to a 50k ultra and a 6 hour challenge. The event features chip timing, bespoke medals, aid stations and is limited to 100 entrants.

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.

Experience a unique 50km point to point ultramarathon from the heart of South London to the rural lanes of Kent. Enjoy a supported journey through urban streets and scenic countryside with well stocked aid stations along the way.

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.

A guided 13-mile trail half marathon around the Surrey Hills, starting and finishing in Guildford, with routes that include St Martha's Church, Shere, Newlands Corner and parts of the North Downs Way. Group run format, not a race, cost £25.

Choose your distance at this flexible 6 hour event outside Market Harborough. Run as many 3.3 mile laps as you like on a flat scenic course along the Griffin Trail with a taproom finish.

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.

The Sundowner Trail Marathon on 6 June 2026 is an evening 27 mile trail through saltmarsh, canal towpaths, vineyards and forests. Limited to 50 runners, this intimate race offers checkpoints, a finish memento and a bespoke local beer.

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.

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.