Trail Running calendar near Leighton Buzzard 2025-2026

Challenge yourself on the Nene Valley Trail Run, with 10 and 20 mile off road routes through rolling Northamptonshire countryside, bluebell woods and rivers. Camp under the stars, enjoy well stocked aid stations and support local charity Ki..

Run the South Downs Way 100, a non stop 100 mile trail from Winchester to Eastbourne with rolling hills, ancient forts and coastal views. Experience a classic ultra that tests endurance across iconic southern landscapes.

Run 50 km along the chalk ridgeline of the South Downs National Park from Matterley Bowl to Queen Elizabeth Country Park on 13 June 2026. Expect scenic trails, strong on course support and a tough but hugely rewarding challenge.

Take on the Cotswold Way Ultra Challenge, a trail festival offering distances from 10 km up to a 100 km ultra on scenic Cotswolds paths. Enjoy staffed aid stations, camping and options for solo, team or walker entries.

Run the scenic Bewl Water trails around the reservoir in Lamberhurst, Kent, on off road woodland paths and quiet country lanes with lake views. Distances from 10 km to marathon and 50 km ultra make it ideal for every trail runner.

Tackle scenic but hilly forest trails at the Wendover Woods Half Marathon and 10k on 14 June 2026, with a friendly junior run and on the day entries if available. Spectators can enjoy a cafe, forest walks and family activities.

Take in Hertfordshire countryside from 3 Brewers Brewery on scenic, undulating off road trails with 10km or 5km options. Finishers get a medal and a pint, with live jazz, food and fundraising for local charity Earthworks.

Run the scenic chalk downs at The Hampshire Hoppit, with marathon, half marathon and 10k starting and finishing at Watership Down. Enjoy sweeping views, friendly marshals and a festive finish with a keepsake beer glass.

The Phoenix Denbies Marathon & Half Marathon, held at Denbies Wine Estate in Dorking, Surrey, offers a unique off-road trail running experience on a flat-ish 1-mile loop with slight inclines. Scheduled for June 2026, the event features flex..

The Centaur 100 Mile Ultra, hosted by Phoenix Running, is a unique 100-mile trail running event held at Denbies Wine Estate in Dorking, Surrey. Designed for both seasoned ultra runners and first-timers, the race features a flat-ish, single..

Event overview P24 - The Longest Attended Day is scheduled for Saturday 20 June 2026 at Denbies Wine Estate in Dorking, Surrey (RH5 6AA). The format requires participants to run 1 mile at the same time each hour, repeated 24 times across 24..

Race to the King is Threshold Trail Series’ king-sized ultramarathon along the South Downs Way and Monarch’s Way. On 20 June 2026 at West Dean Gardens, runners can choose from four distances: Monarch’s Loop 30km, Coastal 50km, Castle 50km,..

Beyond London on 20 June 2026 offers scenic trail runs through parks, woodlands and canal paths, finishing in Richmond. Choose 55 km from Woolwich or 25 km from Upper Norwood, with signed routes, GPX files, aid stations and a finisher medal..

Solstice at the Lakes is a timed trail running event held at Leybourne Lakes Country Park in Kent, featuring 6-hour, 12-hour, and 24-hour race options. Participants can compete solo or in teams (pairs or up to four runners) on a flat, fast,..

Run a scenic point to point trail through Buckinghamshire, Bedfordshire and Northamptonshire with a 50 mile ultra or a marathon, both finishing at Marlow Park, Grafham Water. Waymarked routes, aid stations and medals for all finishers.

The Midsummer Munro will take place in Walton on the Hill on Sunday 21 June 2026. You can run 13 miles.

Run the Martian Race at Horsell Common on 21 June 2026 and follow routes through the sandpits immortalised in H.G. Wells The War of the Worlds. Volunteer organised and charity focused, with distances for all ages.

Take on the Dunstable Downs Half Marathon, a scenic 21.2 km trail with steep climbs and panoramic countryside views. Limited to 300 runners, this rugged UTMB World Series qualifier promises a memorable off road challenge.

The Summer Solstice Challenge - Colchester will take place in Colchester on Sunday 21 June 2026.

Run Sandringham on 21 June 2026 offers 5K and 10K routes across the stunning Sandringham estate, mixing trails and quiet roads. Enjoy chip timing, bespoke finisher medals and goodies, plus trophies for top 10K finishers.