Trail Running calendar near Buckingham 2025-2026

Friendly, scenic 10 and 20 mile trail races set in the Nene Valley countryside. Based at Castle Farm Campsite in Fotheringhay, near Peterborough (PE8 5HZ), the routes take in green fields, bluebell woodlands, rivers and disused railway tracks through quiet villages. Both distances are fully marked a..

Centurion Running's South Downs Way 50km is a 50km non-stop trail ultra through the South Downs National Park. In 2026 it marks the 2nd Annual event, part of the World Trail Majors – Short Series. The course starts at Matterley Bowl near Winchester and finishes in the Event Field at Queen Elizabeth..

Centurion Running's South Downs Way 100 is a 100-mile non-stop ultramarathon along the South Downs Way National Trail. The route begins near Winchester at Matterley Bowl and winds east to Eastbourne, offering chalk ridgeway scenery, rolling hills, forts and expansive coastal views. The race features..

The Cotswold Way Ultra Challenge is part of Ultra Challenge’s UK trek and trail run series. It starts from Cirencester Basecamp in the heart of the Cotswolds and offers Full 100 km, plus 75 km, 50 km, 25 km options, and a 10 km Cirencester leg. The 100 km loop threads rolling hills, villages and foo..

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 Trails London is a trail running event set in Greater London, offering two distances: a 25km trail and a 55km ultra. Both routes follow parts of the Capital Ring footpath, showcasing iconic sights such as Eltham Palace, Wimbledon Common, and Richmond Park, alongside hidden trails, parks, wood..

P24 - The Longest Attended Day takes place at Denbies Wines Estate, London Road, Dorking, Surrey, on the summer solstice weekend of 20-21 June 2026. The concept is simple: run 1 mile on the hour for 24 hours on a flat-ish, off-road 1-mile loop through the estate. Attended participants benefit from f..

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 point-to-point trail event, traversing the Three Shires Way across Buckinghamshire, Bedfordshire, and Northamptonshire. The lineup includes a 50-mile Ultra and a marathon, both run on bridleways that are well waymarked, with a Grafham Water loop..

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, and scenic 2.5km loop combining trail, gravel, and tarmac 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..

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 unique running event held at the scenic Colworth Estate in North Bedfordshire, UK. It features three races over three days, combining distances of 5 miles, 8.1 miles, and a half marathon of 13.1 miles, totaling the full marathon distance of 26.2 miles. The event..

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..

RunThrough Marlow Trail Run, held at Marlow Rugby Union Football Club on Riverwoods Drive, Marlow, unfolds as a scenic all-trail event in the Thames Valley. Runners choose from Half Marathon (one lap), 10K (one lap), or 5K (two laps), all on well-marked off-road routes through local countryside. The..

Devil's Punchbowl 10km is a guided trail run around the Punchbowl in Hindhead, Surrey. The 10km route follows scenic trails with several hills, run at a group pace rather than a race. It suits those new to trail running or who prefer running with others, especially at dusk or night.Top views are pau..

The Full Essex Way Ultra is an 82-mile ultramarathon along the Essex Way, starting at Epping tube station in London and finishing at the high lighthouse in Harwich. The route features mixed terrain—trail, footpath, track and road—with 3,469 feet of total elevation. It includes five checkpoints, a dr..

July the Turd, organized by How Hard Can It Be Events, is a playful running event set in the Ironbridge valley of Shropshire. Distances offered are 8 miles, 16 miles, or a marathon. The marathon is run as three laps, with the half (ish) marathon in two laps, and an 8‑mile option also available.The c..