Trail Running calendar near Marlborough 2025-2026

We have found 391 Trailruns within 80 miles of Marlborough. See below where and when you can find the races.

Run through Hertfordshire countryside from 3 Brewers Brewery with 10 km and 5 km options over mostly off road trails, woodland and farm tracks. Finish with a medal, chip timing, a pint and live jazz for a festive post race vibe.

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 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.

Centaur 100 Mile Ultra at Denbies Wine Estate invites runners from half marathon to 100 miles on a single off road 1 mile vineyard loop. Chip timing, stocked aid and a 30 hour limit for 100 miles make it a scenic buckle or medal chase.

Run a marathon or half at scenic Denbies Wine Estate, tackling a compact looped trail through vineyards with flexible start times and full chip timing. Enjoy a relaxed vibe and a Phoenix Running Community medal.

Race to the King on 20 June 2026 invites runners to explore the South Downs and Monarch's Way at West Dean Gardens, with coastal and castle views. Distances from 30 to 100 km include full support, food stops and a hot finish meal.

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.

UTMB Index

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

UTMB Index

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.

Celebrate the season finale at Cowdray Estate with scenic routes across polo lawns, Ambersham Common and views of the Cowdray Ruins and South Downs. Canicross options, a kids run and post race BBQ and bar make for a festive family finish.

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, t..

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.

TrailFest at Salcey Forest on 28 June 2026 offers 10K, half, marathon and 50 km routes through scenic, firm forest trails with a friendly festival vibe. Carry your own cup or bottle and enjoy well marked routes for all abilities.

July 2026

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..

Run a scenic Half Marathon from Wolverhampton to Brindley Place along canal towpaths and through a 360 m tunnel on a flat route. Chip timed waves, early entrants may get personalised bibs, finishers receive a medal, T shirt and goody bag.

Join the PIGUM on July 4, 2026 in Abergavenny for a 30 mile mountain trail ultra with about 5,000 feet of climbing, taking in Sugar Loaf and ridge country. Expect fully stocked checkpoints, friendly crew support and no time limit.

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..

UTMB Index

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..

UTMB Index

Explore Thursley Common on a guided 10km trail run, a notably flat route with a scenic boardwalk and plenty of birdlife and dragonflies. Enjoy a friendly group atmosphere with kit to try and optional post run refreshment.