Trail Running calendar near Welwyn 2026-2027

We have found 421 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

Run a guided Chilterns Trail Marathon along the Ridgeway and through Wendover Woods, featuring rolling hills and expert leaders offering pacing and technique tips. Small field, halfway refreshments and a wooden finisher medal make for a sce..

Enjoy a family friendly day in Froyle with a scenic 10 km trail through fields and woods and a colourful Kids Colour Dash for ages 4 to 12. Village hall cakes, picnic space and on course support make it a relaxed community event.

Epping Forest Wildwood Trail Series on 11 April 2026 offers a half marathon (two laps) and a 10 km (one lap) through ancient woodland at Chingford Plain, London. Courses are chip timed, fully marked, and include aid stations and an eco frie..

Take on the Battle of the Brampton Valley Way on 12 April 2026 with 14 or 28 mile options from Market Harborough or Northampton along a traffic free, hard packed trail. Expect two dark tunnels so bring a torch and enjoy friendly support and..

Run scenic loops through Haughley Park on paths and woodland with distances from 5k to ultra and a choice of bespoke or lucky dip medals. Secure parking and on course support make this ideal for runners of every pace.

A scenic 10k trail run in the Nene Valley starting and finishing at KC Active, Kings Cliffe. The circular, fully marked route runs on tracks, fields and disused railway lines with a staffed aid station and eco measures in place.

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.

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Join the inaugural Wild Deer Trail Runs at High Lodge Thetford Forest on 12 April 2026, with scenic 5km and 10km trails. Chip timed and fully supported, all finishers receive a medal, Wild Deer merch, snack and drink.

A looped trail event from Windsor Racecourse on 18 April 2026 offering 50 km, 25 km and 10 km routes through the Great Park, Runnymede and along the Thames with marquee rest stops, medical support and GPS tracking via an event app.

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An ultra trail race along the Chiltern ridgeline from Berkhamsted Castle to Hampden Meadow in Wendover. The route is about 51 km with 996 m of ascent, fully marked and supported by three staffed aid stations and a nine hour cutoff.

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Trail races on the Serpent Trail in the South Downs National Park offering five distances from 12km to 110km, start and finish at Cowdray Farm Shop, with marked courses, aid stations and on-site camping available.

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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.

A timed, lap-based run on a flat 5.3 km towpath course by the River Thames in Walton on Thames. Distances range from 5 km to ultra with flexible rock up and run starts and an optional no-medal lower-price entry.

Run the Martello Half Marathon in Seaford on 19 April 2026, a scenic undulating trail mixing seafront miles with South Downs views. Organised by local clubs, the race features aid stations, a medal and free photos.

Tackle scenic trails at Billingford Lakes on 19 April 2026 with distances from 5k to ultra for every kind of runner. Expect rugged paths, a bespoke finisher medal and post race coffee and cake; bring your own bottle for refills.

Run the rolling trails of the South Downs at the Grand National 10 km Trail Run in Findon, with 10 km, canicross, 5 mile and kids events for all ages. Scenic route, bespoke medals, charity support and a fun Filly or Colt costume prize.

Timed lap event at Buchan Country Park on 19 April 2026 with 5.3 km laps to create distances from 5 km up to ultra within a 7 hour limit. Runners may choose one of twelve medals or a lower cost no medal entry.

Run the Thames Ring Series along scenic river and canal towpaths with three distances: TR250 full loop, TR150 and TR100 sections. Choose your challenge and enjoy riverside trails, checkpoint support and GPS tracking across this adventure.

A limited capacity evening trail run of 5 miles for over 18s with the course run in reverse from previous years. Route files are provided beforehand and finishers can exchange their race number at the bar for a drink.

Join the Ale Trail, a 15 mile sponsored fun run through scenic countryside around Alfriston on 26 April 2026, with just 50 places for a sociable challenge. Start and finish at Ye Olde Smugglers Inne with checkpoints offering beer tokens and..