Trail Running calendar near Monmouth 2025-2026

We have found 288 Trailruns within 80 miles of Monmouth. See below where and when you can find the races.

Cannock Chase Wildwood Trail Series offers a 10K or half marathon through pine forest and open heath with steep climbs, fast descents and muddy technical trails. Canicross welcome and eco friendly wooden medals for finishers.

Castle 2 Castle Ultra is a 32 mile ultramarathon from Powis Estate to Caffi Wylfa, taking runners over fast paths and rolling footpaths with scenic castle views. Finishers get a celebratory plate and goodies and top three men and women win..

Tackle the 25 mile South Shropshire Circular from Minsterley Village Hall, a navigational challenge across scenic hills with checkpoints and a 10 hour limit. Organised by LDWA and currently full with a waiting list.

March 2026

Run the scenic Brecon to Cardiff Ultra, a fully marked 70 km one way race along the Taff Trail on 1 March 2026. Enjoy epic views, checkpoint support and a finishers medal as you cross the line at Coleg y Cymoedd in Nantgarw.

Take on the Brecon to Cardiff Xtreme, a winter mountain trail offering a challenging 75 km ultra or a 26.2 mile marathon across rugged ridges. Navigation, big climbs and stunning upland views make this a true mountain test.

UTMB Index

Tackle the Imber Ultra, a scenic 33.5 mile multi terrain trail run around the Imber Range on Salisbury Plain, starting in Westbury. Organised as a charity fundraiser, this classic March ultra promises tough trails, great camaraderie and fin..

Challenge yourself on scenic trails at Up on the Downs on 1 March 2026, starting and finishing at Breamore House near Salisbury. Choose from a half marathon, 10k or 5k with a Canicross option and earn a finisher medal.

Tackle undulating trails, muddy paths and a shallow stream crossing on an adventurous six mile route at Baggeridge Country Park. Join the Action Heart Tuff Un on 1 March 2026 to test yourself and support a West Midlands cardiac charity.

Celebrate St David's Day with the Dragon Run at Dare Valley Country Park 1 March 2026, a scenic lap course offering distances from 3 km to ultras. Friendly, well supported and medal for all finishers, plus goody bags and great views.

Take on the Winter Green Man Ultra around Bristol's Community Forest Path with 45 or 30 mile options, solo or in pairs. Self navigated route, staffed checkpoints and a festive finish at Ashton Park with a tech tee and bespoke medal.

Join the Scott Sports Dirty Dozen, a 12 km single lap across muddy Cannock Chase trails with climbs, fast descents and the infamous Ditch of Doom. Kids course, camping and on site parking make it a great family friendly race day.

Larmer Tree 2026 invites runners to the picturesque Larmer Tree Gardens on the Rushmore Estate in Dorset, with courses run in laps from a 1 mile fun run up to the marathon and a full colour finishers medal. Held Sunday 8 March 2026, entries..

Join the CODopoly Triple in Shropshire for a weekend of flexible running from The Unicorn Inn, with routes offering views of Ironbridge and south Telford. Pick one to three days and mix 8 mile, Half Marathon or Marathon distances to suit yo..

Join the Nant Yr Arian Silver Trail Races on 14 March 2026 in the scenic Cambrian Mountains, featuring a trail Half Marathon, 10 km and fun youth races for all ages. Organized by Aberystwyth Athletic Club, the community event supports local..

Tackle the Hundred Hills 50 km at Stonor Park on 14 March 2026, two 25 km loops with about 4,000 ft of climb. Mostly trails with full support, hot food and medals at the finish make it a fierce but rewarding ultra.

UTMB Index

Explore ancient trees and rolling trails in Wyre Forest on 15 March 2026 with a half marathon or a 7.6 mile Super Seven. Enjoy timed, fully marshalled courses, finishers medals and a friendly forest atmosphere with cafe and on course suppor..

Join the Dashing Dog Charity Run at Dare Valley Country Park for scenic laps and distances from 3 km up to ultra marathon, plus a flexible 7 hour time challenge. Enjoy finisher medals, on course support and fundraising for local dog rehomin..

Finish the season with the final round of the West Glamorgan XC League at Gnoll Park, Neath on 15 March 2026, a testing 5 mile cross country hosted by Neath Harriers. Club only event with no on the day entries, registration opens 2 February..

Join the Pendock Spring Chicken Run on 15 March 2026 for scenic Worcestershire routes with 10K, 5K and a 1K fun run for all ages. Enjoy medals, prizes and help raise funds for the local school.

Tackle the rolling lanes of Bratton in a scenic 11K road and multi terrain run that supports Bratton Jubilee Hall. Limited to 200 entries, this friendly event offers medals for all finishers and a lively village atmosphere.