Trail Running calendar near Greater London 2026-2027

Take on the Unbreakable Treasure Run on 5 April 2026 at Xcel SPORTS HUB, Walton on Thames, running timed laps along a flat riverside towpath from 5 km to ultra. Limited places and a 7 hour time cap make this a focused challenge with a keeps..

Join the third day of the Easter Eggstravaganza Trail Series for a self navigated run through Little Baddow. Choose between five or eleven mile routes using written directions followed by refreshments at the cricket pavilion.

Join this Easter Monday tradition in Berkshire featuring a 10km off road course through local woodlands. Participants can choose between a standard foot race or a dog friendly canicross event starting from the Mortimer Fairground.

Experience a scenic 5 mile trail loop through the private Hall Barn Estate in Beaconsfield. This chip timed race features mixed terrain and finishes with a medal and awards ceremony at the local rugby club.

Join the final day of the Easter Eggstravaganza Trail Series for a self navigated 6 mile run starting from the Rose and Crown pub. Finishers receive a voucher and a chocolate treat at this unique timed interval event.

Explore Northamptonshire's countryside on a 54-mile ultra marathon loop from Brixworth Country Park. For those preferring a shorter distance, the Rosebud Marathon covers the final 26.2 miles of the route. Relay team options are also availab..

Test your endurance with the 50 Mile Grand Slam 2026. This comprehensive series includes four iconic 50 mile races across the South Downs, North Downs, Chilterns, and Wendover Woods.

A 50 mile ultramarathon along the South Downs Way National Trail from Worthing to Eastbourne. Experience 5,700 feet of elevation gain across rolling chalk paths and finish with a lap of an athletics track.

Experience a scenic mixed terrain race along the banks of the Thames in Henley on Thames. Choose from a half marathon, 10K, or junior race starting at the iconic Temple Island Meadows.

Take on the Rosebud Marathon, a 26.2 mile stretch of the Rose of the Shires Ultra through scenic Northamptonshire trails, roads and canal tow path. Enjoy waymarked routes, on site support, a finisher medal and prizes for top runners.

Experience the rare heathlands of the Cowdray Estate with trail runs ranging from 3km to 10 miles. This dog friendly event offers a unique journey through the South Downs National Park and protected nature conservation sites.

Experience a unique obstacle run in Huntingdon featuring the world's largest inflatable course. Choose from multiple distances for a bouncy and active day out in Cambridgeshire.

Trail races on the South Downs Way around Stanmer with 21 km, 14 km and 5 km options. Routes pass Ditchling Beacon and include chip timing, a finisher medal, GPX files and on-course support for the longer distances.

Experience a guided marathon through the beautiful Chiltern Hills with expert navigation and support. Run iconic trails like the Ridgeway in a small group setting led by qualified leaders.

Experience the scenic Hampshire countryside with a choice of a ten kilometer trail run or walk and a vibrant kids colour run in the heart of Froyle village.

Experience the beauty of ancient woodland at the Epping Forest Wildwood Trail Series. Choose between a 10K or half marathon distance through scenic trails featuring natural forest terrain and muddy paths.

A seasonal trail run series at Cowdray Estate offering 5 km, 10 km and 10 mile races across spring, summer, autumn and winter, with a summer evening event that includes a BBQ, bar and spot prizes.

Join this inclusive event at Haughley Park featuring various distances from 5k to an Ultra Marathon. Enjoy a looped course through beautiful woodland and trails with full aid station support and a unique finisher medal.

Experience a unique 42km journey starting in the woodland trails of Stanmer Park and the South Downs before joining the road for a grand seaside finish at Hove Lawns.

Experience the inaugural Wild Deer Trail Runs at High Lodge in Thetford Forest. Choose between chip timed 5km and 10km distances through scenic woodland trails with medals and merchandise for all finishers.