Trail Running calendar near Semington 2026-2027

We have found 445 Trailruns within 80 miles of Semington. See below where and when you can find the races.

A 47-mile point-to-point ultra along the Thames Path from Iffley to Henley-on-Thames. The course mixes riverside trails with road sections and is a UTMB index race. Support includes five aid stations, GPS tracking, and a baggage transfer.

UTMB Index

The Spooky Sprint offers a choice of distances on a tough off-road course at Pengethley Manor. You have 7 hours to complete your 5k, 10k, half, full, or ultra marathon. A virtual run option is also available, complete with a Halloween-theme..

The Zombie Shuffle is a Halloween themed off road run at Pengethley Manor. Choose your distance from 5k to ultra, with a 7 hour time limit. A virtual run option is also available.

Black Beacon Mountain Races The Black Beacon Mountain Races are a series of linear long-distance mountain trail races. They cross from south to north through the Black Mountains and the Bannau Brycheiniog (Brecon Beacons) National Park in S..

UTMB Index

An autumn/winter ultra on classic Chiltern trails. This single-loop 50K starts in Berkhamsted, following The Ridgeway and Chiltern Way with scenic views. The fully-marked course has a 9-hour limit and is a UTMB World Series Index Race.

UTMB Index

Pilgrim 6 is a demanding 32 km mountain run featuring three ascents of Pen y Fan in the Brecon Beacons. Participants navigate six unique paths without repeating any route. The event offers both a classic trail run and a weighted category ca..

Run a night trail through Alice Holt Forest on a 5 km loop system. Choose your distance from 5 km, 10 km, or 15 km on wide gravel tracks lit by head torches. After the run, warm up by a fire pit with some food.

November 2026

A trail ultramarathon of about 36 miles around Maiden Newton, Dorset, with roughly 1,300 m of ascent, mostly off road and served by six aid stations. Navigation files and mandatory basic self-sufficiency kit are required.

Trail races in Wendover Woods, Buckinghamshire offer marathon, half marathon, 10k and a junior 1k on hilly forest trails with mixed terrain, onsite facilities and event medals and photos; there is a six hour cutoff.

Tackle the Apocalypse Run, a rugged 10 mile trail through Stonehouse with a stiff opening climb and muddy, undulating terrain. Canicross runners welcome and all finishers get a medal for braving the off road challenge.

Join Enigma Fireworks on 6 and 7 November 2026 for marathon and half marathon loops around scenic Caldecotte Lake. Enjoy waterside views, lap support and a bespoke finisher medal to light up your race season.

Take on flat, scenic laps along the Thames towpath in Walton on Thames with flexible starts and distances from 5 km to ultra. Limited places, aid stations, digital results and medals make this a friendly, festival style challenge.

A nighttime trail run on the historic Stonor Park estate in the Chiltern Hills. Choose from three courses, from 7 km to 17 km, run under headtorches. The event is plastic-free, so bring your own reusable cup.

Run through the scenic Chilterns from historic Stonor Park. Choose from three trail distances, each with its own challenges and autumn views. The event is dog-friendly and emphasizes a reusable cup policy at its aid stations.

Three distances on mixed terrain in the Brecon Beacons. The event offers an ultra (~50mi), marathon (~26mi), and half marathon (~13mi), all starting and finishing in Talybont-on-Usk.

The Dirt Half Challenge is a popular trail race in Leighton Buzzard, Bedfordshire, featuring a half marathon and a metric half marathon. Runners explore a scenic route along canal towpaths, through woodlands and countryside. It's known for..

Run through the historic trails of Windsor in this November half marathon and 10k event. The flat, off-road course starts at Alexandra Gardens and offers a chip-timed race with scenic views. Enjoy the event village and post-race goodies aft..

A riverside Time Challenge in Surrey with signed laps, medals from 3 km, distance pins for longer finishes, aid stations and a vegan goody bag option.

Join the Remembrance Run on 8 November 2026 for a scenic timed challenge along the River Thames where you pick your distance from 3 km up to ultra. A two minute silence will be observed and finishers from 3 km receive a medal.

Run for a cause at the MoRun London in Richmond Park. Choose from a 1.5k, 5k, 10k, or half marathon on a scenic, chip-timed course. Every finisher gets a medal while supporting men's health charity Movember.