Trail Running calendar near Eynesbury 2025-2026

Celebrate the 30th Halstead & Essex Marathon in May 2026, a scenic road race through rolling hills, woods and farmland around Halstead. Expect low traffic roads and friendly club support for a classic Essex running challenge.

Run through rolling Northamptonshire countryside from Naseby Village Hall, choosing multiple distances up to a 35 mile ultra marathon. Marked circular routes, live GPS tracking and country house views make for a memorable day.

Run the Zig Zag Marathon or Half at Suffolk Running Centre, Bury St Edmunds, over scenic mildly undulating road routes. Limited to 300 entrants, with on course aid and a bespoke finisher medal.

Join the Oliver Fisher 10k, 5k and junior run at Milton Creek Country Park for a scenic off road race supporting the Oliver Fisher Special Care Baby Trust. Enjoy park views, medals and fundraising for the neonatal unit.

Take on the Greenway Challenge in Letchworth Garden City: a self guided 13 mile clockwise run starting and finishing at Standalone Farm. Enjoy marshalled crossings, a wooden medal, and cake at the finish while supporting Headway Herts.

Take on a 50k countryside challenge on 16 May 2026 around Trent Valley, weaving through villages, footpaths and tracks. Finish back at Milestone Brewery for food, music and a commemorative branded pint glass to toast your effort.

Five Rivers Ultra, 16 to 17 May 2026, is a point to point coastal ultramarathon that circles five estuaries between Suffolk and Essex, finishing in Harwich. Choose 100 mile, 50 mile or 50 km on mostly grass and dirt trails for flat fast run..

Run the North Downs Way 50, a 50 mile point to point ultramarathon from Farnham to Knockholt Pound along iconic chalk ridge trails. Expect rugged terrain, big climbs and a 13 hour cut off for a true test of endurance.

Run the scenic Berkshire Downs at the Compton Downland Challenge on 16 May 2026, with 26.8 mile or 16 mile trail options along the ancient Ridgeway. Expect climbs, muddy paths, aid stations, chip timing and a hearty post race BBQ.

The Reigate Priory Park 10K is a scenic charity fun run held in Priory Park, Reigate, Surrey. The course features a 250-meter start plus four laps on an accurately measured, gently undulating cross-country terrain surrounded by lush greener..

Run the Grim Reaper Festival at Grimsthorpe Castle with distances from a 10 mile day or night race up to 100 miles, including a 100 mile team relay. Enjoy scenic 10 mile loops through woodland and lakeside trails, camping and medals for all..

Explore the Surrey countryside at The Fox, a trail running festival offering distances from 20K to 62K that all finish in Godalming. Enjoy scenic singletrack, regular aid stations and a friendly atmosphere on Saturday 23 May 2026.

Take on the Grand Union Canal Race, a nonstop 145 mile ultra from Birmingham to Little Venice along scenic towpaths. Limited to 100 starters with a 45 hour limit, it welcomes supported and unsupported runners for a true canal challenge.

Join a scenic 26.2 mile marathon in Richmond Park over three laps of the Tamsin Trail and park perimeter. A 3 mile kids challenge follows, with on course drink stations and medical support for a safe, memorable morning.

Beat The Sunset 50km in Maidenhead is mainly off road, a flat single lap along the Thames Path and Jubilee River for a scenic ultramarathon. Chip timing, live tracking, feed stations and a finisher medal make it welcoming.

Take on the Ridgeway Challenge, a scenic point to point trail run of 86 miles from Ivinghoe Beacon to the Avebury Stones. Test your endurance across rolling chalk ridges and ancient landscapes on 30 May 2026.

Take on the Three Castles 50 km ultramarathon along the scenic Medway Valley from Rochester to Tonbridge, finishing with a lap of the athletics track. Fully marked course with live timing and stocked aid stations for a memorable riverside c..

Castle Trails 30km, part of the Three Castles weekend, follows the River Medway from East Farleigh to Tonbridge. Mostly flat towpaths lead to a finale on an athletics track and a finisher medal within the 8 hour cut off.

Run 60 km along the ancient Ridgeway from Ivinghoe Beacon to near Wallingford across chalk ridgelines and rolling downs. With 1000 m ascent, a 10 hour limit and UTMB World Series status, this scenic ultramarathon tests endurance and pace.

Join a guided Surrey Hills half marathon around Guildford, following sections of the North Downs Way and passing St Martha's Church and Shere. This relaxed group run is guided rather than raced, with evening midsummer dates available.