Trail Running calendar near Welwyn 2026-2027

A 24 hour running event near Caldecotte Lake around Midsummer, open to individuals and teams of 2 to 6. Runners complete 6.55 mile laps with camping, teepee hire, free snacks and showers on site.

Celebrate the longest day at the Summer Solstice Challenge around Abberton Reservoir, a timed loop with 5 km laps. Run as many laps as you like, earn a medal and support Essex Wildlife Trust.

A trail half marathon across the National Trust's Dunstable Downs covering 21.2 km with about 450 m of ascent. The marked route features two aid stations, a four hour time limit, and a limit of 250 runners on 21 June 2026.

Volunteer organised trail races on Horsell Common with family friendly distances from a 2 km kids race to a 21 km option. Proceeds support local charities and the event emphasises minimal environmental impact.

A 10 km trail run at Twisted Tree Brewery on the Tusmore Estate near Bicester. Mostly off-road with a canicross option, chip timing, medal, pint cup and a free drink included.

A community 10 km, 5 km and free junior run around The Moor in Hawkhurst on 21 June 2026. The multi terrain undulating course features finish line cake, a free half pint for finishers and on site stalls.

Circular cross country routes of 26 miles and 18 miles around Baldock across undulating fields and woodland, with checkpoints, refreshments and a certificate for finishers.

Trail races in Trent Country Park, Enfield offering 2 km, 4.5 km and 10 km distances. The senior race is chip timed and run under UKA rules while junior and fun races have additional marshals.

A lap-based timed event at Ardingly Reservoir offering distances from 5 km up to ultra with a seven hour limit and flexible start times. Chip timing, an aid station and an optional no-medal entry are available.

A flat, timed 10 kilometre out-and-back from the toll bridge in Shoreham to Bramber and back on 21 June 2026, with a halfway aid station, full marshals, 4x4 pickup and a new medal; entries open 20 March.

A single lap fully off road 10K trail through Panshanger Park on 21 June 2026, passing a 500 year old oak, the Queen’s Wood and the Mimram River. The event includes chip timing, a sustainable finisher’s medal and a Family Fun Run.

A muddy 5k obstacle course at Trinity Park, Ipswich on 21 June 2026 featuring climbs, crawls and slides. Waves start every 15 minutes; participants must be 13 or older. Facilities include toilets, refreshments and on-site parking.

An evening trail race in The Valley, Evesham on 24 June 2026 featuring a two-lap **9km** country park route, canicross permitted, limited places, listed entry fees, and no refunds or transfers for the series.

A twilight trail race at Ashburnham Place with 10k, 5k and a junior run. The event raises funds for four charities and offers on site parking, a bespoke medal and on site food.

Run the Seasons at Cowdray on 26 June 2026 offers 3km and 5km races plus a 10km with dog friendly CaniRun options. The event includes stacking medals, course maps, free photos and an on site BBQ and bar.

Complete three races over three days to achieve a full marathon distance at the Colworth Estate. This multi terrain event in North Bedfordshire offers distances of 5 miles, 8.1 miles, and a half marathon.

A last person standing backyard ultra near Alfriston where runners repeat hourly laps of at least 4.167 miles until only one can start another lap. Limited field, token checks each loop, basic aid station and barn facilities.

A seasonal trail running series at Cowdray Estate featuring 5km, 10km and 10 mile races across spring, summer, autumn and a winter night run, with a dedicated kids series and a summer event that includes a BBQ and bar.

A 24 hour obstacle course event at Belvoir Castle featuring repeated 5 mile loops, named obstacles like an ice dunk and a greased quarterpipe, plus individual, team relay, pit crew, and brunch options.

A trail event at Hyde Hall Farm on 27 June 2026 with distances from 5k to ultra. Onsite parking, a lap aid station, baggage provision and event medals are included.