Trail Running calendar near Amersham 2025-2026

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,..

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..

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.

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..

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.

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

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

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.

Tackle a full marathon over three days at the Colworth Marathon Challenge on the scenic Colworth Estate. Choose one, two or all three races and enjoy free camping, family entertainment and children's races for a festival feel.

Join the Summer Run the Seasons at Cowdray Estate on 26 June 2026 for scenic 5km, 10km and dog friendly canicross routes past the polo lawns, ruins and the South Downs. Celebrate at the finish with an interlocking medal, free photos and a B..

Take on farm trail laps at Hyde Hall Farm with distances from 5k to ultra, including a Heavy Half option. On site parking and a bespoke finisher medal make for a friendly, flexible event.

Enjoy scenic Thames Valley trails at Marlow Rugby Club with 5K, 10K and Half Marathon options on well marked off road courses. Chip timing, free race photos and a themed finisher medal make this a fun, sustainable event for all abilities.

Enjoy an inaugural trail run from Housedean Farm on the South Downs, with scenic views across Lewes and Plumpton. Choose the half marathon or 10K on mixed gravel and well kept trails, with aid stations and a finisher medal.

Choose from 10K, half marathon, marathon or 50 km on scenic, well marked trails through Salcey Forest. A friendly community day with generous time limits, forest underfoot and a medal plus drink for every finisher.

Join a guided 10km trail run around the Devil's Punchbowl in Hindhead, enjoying rolling hills and a scenic pause with great views. This friendly group paced run is led by an experienced guide and runs at sunset or by headtorch in winter.

Event overview The SATURN Midweek Chasing Numbers event takes place on Friday, 3 July 2026 at Wraysbury Skiff & Punting Club, Egham (TW20 0AE). It is a 7 hour Time Challenge with flexible start times available throughout the day. The ev..

Take on the Full Essex Way Ultra, an 82 mile journey from Epping tube station to Harwich lighthouse across varied trails, tracks and roads. With just 65 places and a 24 hour cut off, this iconic challenge supports Essex Wildlife Trust.

Take on the Serpent Trail in the South Downs on 4 July 2026, with routes from 10 km to 100 km across heathland, ancient woods and chalk hills. Camping, coach transfers, food and a licensed bar make it a perfect weekend for runners and walke..

On 5 July 2026 the Chiltern Ridge Half Marathon offers a scenic off road challenge along The Ridgeway near Wendover, with rolling climbs and woodland views. Entries are limited to 350 runners so book early for this memorable trail experienc..