Trail Running calendar near Broomfield 2025-2026

Take on the 50 Mile Grand Slam 2026 from Centurion Running and complete four epic 50 mile trail races across the UK. A true year long challenge for experienced runners seeking big miles, camaraderie and stunning scenery.

Run 50 miles along iconic chalk ridges from Worthing to a lap on Eastbourne athletics track, with rugged climbs, sweeping coastal views and a festival finish. This tough but rewarding ultra kicks off the 2026 50 Mile Grand Slam.

Take on the Henley River Half Marathon, 10K or Junior Race in Henley on Thames on 11 April 2026, with options for all ages including a kids race. Enjoy mixed terrain, riverside views, medals, free photos and a buzzing event village.

Take on the Rosebud Marathon, a 26.2 mile stretch of the Rose of the Shires Ultra through scenic Northamptonshire trails, roads and canal tow path. Enjoy waymarked routes, on site support, a finisher medal and prizes for top runners.

Spring Run the Seasons Cowdray on April 11 offers scenic trail races across Cowdray Estate and the South Downs, with distances for kids, juniors and adults plus dog friendly CaniRun options. Enjoy varied trails and country views for all abi..

Tackle scenic chalky trails around the South Downs and Ditchling Beacon at the Maverick East Sussex Trail in Stanmer Park. Choose from 21 km, 13 km or 5 km routes with rolling hills, great views and a lively community atmosphere.

Join a guided trail marathon through the Chilterns and Ridgeway into Wendover Woods, tackling rolling hills and technical single track while qualified run leaders steer small ability groups. Midway refreshments and a wooden Run the Wild fin..

Join the Battle of the Brampton Valley Way, a one day 28 mile ultra along the traffic free route between Northampton and Market Harborough. Choose your start end, expect two dark tunnels so bring a head torch, enjoy feed stations and a fini..

Run the picturesque grounds of Haughley Park on 12 April 2026 with distances from 5k to ultra for all abilities. Limited to 300 runners, the event features lap formats, a bespoke finisher medal and a friendly community atmosphere.

Join a scenic 10k trail around Kings Cliffe, starting and finishing at KC Active amidst rolling Northamptonshire countryside. The well marked loop uses tracks and disused railway lines, with marshals, an aid station and eco friendly water r..

Take on the 42 km Brighton Trail Marathon through the South Downs from Stanmer Park to Hove Lawns on 12 April 2026. Hilly chalk ridgelines, woodland and a finish on the Brighton Marathon route promise a scenic, rewarding challenge.

Join the inaugural High Lodge Wild Trail Runs on 12 April 2026 at Thetford Forest for scenic 5 km and 10 km timed trail races between Cambridge and Norwich. All finishers receive a medal, Wild Deer merchandise, a snack and a drink.

Run scenic loops from Windsor Racecourse through Windsor Great Park, Runnymede and the Thames Path with views of Windsor Castle. Choose 50 km, 25 km or 10 km loops with aid stations, timing, a finisher T shirt and medal.

Take on the Chiltern Ridge Classic 50K, a 51K trail ultra across the iconic Chiltern Hills with 996 m of climbing, starting at Berkhamsted Castle and finishing in Wendover. Expect Ridgeway views, tough trails and full on course support.

Run the Spring Trail Series at Cowdray Estate where the Serpent Trail winds through greensand hills, rivers and woodland. Distances from 12 km to 110 km, with food, camping and relaxed cutoffs for a friendly, well supported day.

Tough but rewarding 10 km fell race around Chingford with 450 m of climbing, hosting the first ever Essex County Championships. Pre entry only and open to Essex eligible runners aged 16 and over, with teams welcome.

Run the Martello Half Marathon in Seaford along seafront and South Downs trails, a scenic but undulating course with marshal support. Enjoy great views, a bespoke medal and free photos while backing local charities.

Run the Roman Ramble at Billingford Lakes on 19 April 2026 on trails with distances from 5k to ultra. Entries capped at 300, no cups provided so bring your own bottle, and finishers receive a bespoke medal.

Join the Grand National 10 km trail in Findon on 19 April 2026 across the South Downs during Grand National weekend. Family friendly races include canicross, 5 miles and kids runs with bespoke medals, costumes and proceeds to local causes.

The Thames Ring Series is a multi distance trail event from Streatley on Thames, featuring the roughly 250 mile Thames Ring 250 counterclockwise loop along canals and towpaths. Scenic and largely flat, it takes place 22 to 26 April 2026.