Trail Running calendar near Grafham Water 2026-2027

Track-based running at Wodson Park in Ware, with distances from *5k* to a 6 hour challenge on a 400 metre athletics track, chip timing, aid stations, and on-track viewing for supporters.

A memorial trail run of about 5.5 miles from Worksop College into Clumber Park on 31 May 2026, with marshalling, first aid support and a finisher medal. All profits are donated to Cancer Research.

Northampton 5k, 10k and Junior race takes place at Sixfields Stadium on Sunday 31st May 2026. The races start and finish inside the stadium before moving onto closed roads around Northampton.

A four-round trail series on footpaths, fields, woods and some roads held across June to September. All four rounds count toward individual championship scores, with timed results, navigational questions, and t-shirts for those who complete..

A guided 13 miles trail run around the Surrey Hills starting and finishing in Guildford, visiting St Martha's Church and parts of the North Downs Way. Group paced with a suggested average of about 10 minutes per mile on trails.

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.

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.

An evening marathon that follows canals, waterfalls, vineyards, woodland and coastal saltmarshes, running from early evening into the night. Registration for the 2026 edition is closed.

A backyard ultra at High Lodge Thetford Forest where runners complete a 4.167 miles loop each hour until one person remains. 6 and 12 hour timed options are available; the open event uses chip timing and offers a £500 prize.

An inflatable obstacle-course fun run in Lincoln on 6 June 2026 with lap options of 2.5k, 5k, 10k and 15k, music zones and multiple inflatable obstacles. Family, group and charity discounts are available, plus volunteer benefits.

The National Forest Way Ultra will take place in Burton upon Trent on Saturday 6 June 2026.

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.

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 circular long-distance run or walk of around 46 miles through Cambridgeshire, visiting former RAF Pathfinder Force airbases. Participants may enter solo or as a team relay; the entry includes a course booklet, event t-shirt and finisher m..

MacTuffX Sutton Coldfield on 6 June 2026 pairs 10 functional Xercises with running in classic and double distances, offering Solo, Doubles and Relay entries plus a LITE weight division; entrants must be 18 or older.

A three-race one-mile series at Jubilee Retreat on 6 June, 4 July and 1 August 2026, begun in 2009 to fund the Orion clubhouse. A reduced series rate is available and age-category and team trophies are awarded, with the third race part of t..

The Pretty Muddy 5k at Cassiobury Park is a mixed-terrain obstacle course featuring muddy climbs, crawls and slides. The event is for ages 13 and over, runs in staggered waves, and includes on-site facilities plus fundraising support and a..

A 5 km muddy obstacle course at Willen Lake on 06 June 2026 where participants climb, crawl and slide through timed waves. Entry fees and a minimum fundraising target apply, with on-site facilities and accessibility support available.

A 5k mud obstacle event at Markeaton Park where participants climb, crawl and slide around varied terrain. Organised by Cancer Research UK, the event has a fundraising target and includes on-site facilities and a Race for Life medal.

A 5k Pretty Muddy obstacle course at Prospect Park, Reading, featuring grass terrain, steep slopes and woodland sections. Obstacles include climbing, crawling and sliding; participants must be 13 or older and events support Cancer Research..