Trail Running calendar near Bourton-on-the-Water 2025-2026

Offa's Dyke 15 (2026) is a 15-mile off-road running event organized by Tempo Events, taking place on Saturday 13 June. Registration is at The Granary, 20-21 Broad Street, Hay-on-Wye, Herefordshire HR3 5DB. Solo entries cost £34 (plus service fee); relay entrants £47.The race carries a storied herita..

Set in the Nene Valley countryside near Fotheringhay, Peterborough, the Nene Valley Trail Run offers friendly, scenic off-road racing over 10 miles or 20 miles. Starting from Castle Farm Campsite, the routes traverse green fields, ancient bluebell woodlands, rivers, disused railway tracks and quiet..

Centurion Running's South Downs Way 50km is a 50km trail ultra in the South Downs National Park. The race starts at Matterley Bowl near Winchester and finishes at Queen Elizabeth Country Park along South Downs Way. The course is 80% trail and 20% road, with about 4,000 ft of climb.The route features..

The South Downs Way 100 is a 100-mile non-stop ultramarathon along the South Downs Way National Trail, from near Winchester to Eastbourne, England. The course runs along chalk ridgeway with rolling hills, ancient forts, villages and coastal views, about 15% road and 85% trail. Runners are supported..

The Cheddar Gorge Challenge is a demanding off-road running event held at Warren Farm, Charterhouse, Somerset, within the stunning Mendip Hills Area of Outstanding Natural Beauty. Offering distances from 1km fun runs to a full marathon, the course features diverse terrain including open fields, flat..

The Hampshire Hoppit is a trail-running event set in the Hampshire countryside, based in the village of Kingsclere, midway between Basingstoke and Newbury on the A339. Distances on offer are marathon, half marathon and 10k. Races are mainly off-road and run as clearly marked, single-lap routes with..

Wendover Woods Half Marathon & 10k, staged in Wendover Woods, Upper Icknield Way, Aston Clinton, Buckinghamshire, offers trail runners a forest challenge. The course comprises a hilly 10k multi-lap route through Wendover Wood forest, with Half Marathon option also on offer. Runners can expect scenic..

Beyond London offers two routes: a 55km Ultra and a 25km Trail. The event starts in Woolwich for the ultra and Upper Norwood for the shorter race, finishing in Richmond upon Thames. The route follows the Capital Ring inner circle, exposing iconic London sights such as Eltham Palace, Wimbledon Common..

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 consecutive hours on an off-road trail through the wine estate. The event..

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 1-mile loop course through the scenic wine estate trails. Pa..

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 flexible start times over a 30-hour window, allowing participant..

Three Shires Way Ultra & Marathon is Race Harborough’s event, offering a 50-mile Ultra and a Marathon along the Three Shires Way through Buckinghamshire, Bedfordshire and Northamptonshire. The routes run through rural landscapes and woodlands, with a well-marked bridleway for navigation. The Ultra s..

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

Dunstable Downs Half Marathon is a scenic trail race set in the National Trust’s Dunstable Downs estate. In its sixth edition (2026), the 21.2km course with about 450m of ascent mixes ridge views, fast descents and climbs. The route begins at the National Trust Countryside Centre, visits Tree Cathed..

The Martian Race is scheduled for 21 June 2026 at Horsell Common, Woking, Surrey. The event is organised entirely by volunteers and proceeds are distributed to local charities selected by the Woking Lions. The 2025 event raised over £20,000 for local charities. The race is in its seventh year and t..

Run The Seasons at Cowdray is a late-June running event on the Cowdray Estate near Midhurst, with race HQ and parking at the Cowdray Farm Shop & Café. Runners can choose from 5km or 10km routes, including a dog-friendly canicross option, circling the Cowdray Polo Lawns and heading out to Ambersham C..

The Colworth Marathon Challenge is a three-day running event held on the Colworth Estate in North Bedfordshire, UK. The event comprises three separate races that together total the marathon distance of 26.2 miles. It is scheduled across three consecutive days in late June 2026 and includes free cam..

The Zigzag Cock-A-Doodle Dawdle is a trail running event held at the exclusive Hyde Hall Farm in Hertfordshire (SG9 0RU). Returning for its third year, it offers multiple distance options including 5k, 10k, 15k, Half Marathon, Heavy Half Marathon, Full Marathon, and Ultra Marathon. The course featur..

The RunThrough Marlow Trail Run is scheduled for Sunday 28 June 2026. The event base is Marlow Rugby Union Football Club, Riverwoods Drive, Marlow SL7 1QU. Group bookings for six places are listed at £150. Half Marathon - £32 (+£12 for event T-shirt) 10K - £28 (+£12 for event T-shirt) 5K - £26 (+£..

TrailFest - Salcey Forest takes place on Sunday, 28 June 2026 at Salcey Forest (postcode NN7 2HX), a Forestry England site near Northampton. The event offers four distances: 10K Half marathon Marathon 50 km The routes use similar sections of the forest and follow well maintained pathways. There..