Trail Running calendar near Brentwood 2026-2027

A winter coastal Backyard Ultra at Great Farthingloe Farm near the White Cliffs of Dover. Runners complete one yard every hour, each yard equal to 4.167 miles; entries include the Last Person Standing format and a 7 Hour Challenge.

A guided 30 mile trail run from St Martha's Hill exploring the Surrey Hills and Box Hill with an experienced ultra runner and coach. Group pace, recommended 22 miles training, cost £55 and an alcohol free beer may be available.

A timed multi-lap run on 10 January 2027 in Walton on Thames with a 5.3 km riverside lap, doughnut elements on course, and double sided magnetic finishers medals. Distances range from 5 km up to ultra and virtual entries are available.

A lapped multi terrain event at Brandon Country Park with a 5.3 km loop. Run as far as possible within a 4 or 6 hour window, with aid each lap, marshal support, and bespoke medal options.

A 10 km accurately measured race at Northampton Racecourse Park featuring a 2.2 km section plus three laps, England Athletics affiliation, on day registration and prizes including a bespoke medal and trophies.

Windmill Way Wander at Suffolk Running Centre offers road distances from 5k to ultra across a rolling 600 ft route with village scenery and a view of the Dalham windmill. Aid stations appear every 10k and parking is included.

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

A last-person-standing backyard ultra near Alfriston featuring repeated 4.2 mile loops on mixed trail and farm tracks, token checks, basic aid station and sustainability measures.

A lap based event at Bawsey Country Park offering distances from 5k to ultra marathon on sand, gravel and grass. Mass start, aid station every lap, bespoke finisher medals and parking included.

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

Uphill winter trail at Irchester Country Park offering 5K, 10K and 15K on varied multi-terrain through a Jurassic landscape.

A 10‑mile and 5‑mile trail challenge at Pippingford Park with 1568 ft of climbing, hard packed forest trails, wide views and bespoke medals.

Trail runs of 21.6k, 15.2k and 7.9k start and finish at Queen Elizabeth Country Park, using South Downs routes through Head Down, Milky Way and War Down. Chip timing, water stations, first aid cover and finisher medals are provided.

A field-start running event in Surrey on 30 January 2027 offering 10 km and 15 km options with on-site parking and series bundle entries, organised by G3 Series.

A winter trail run through Lavenham on mixed terrain along the old railway line, manually timed with cupless water refills, medals and podium trophies.

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

Guided *10 km* trail run around the Devil's Punchbowl in Hindhead, Surrey, with hills, views and group navigation. Events take place at dusk or at night with headtorches and cost £22 per person.

A six hour lap event at Daventry Country Park where participants complete as many 3.3 mile laps as they choose within the time limit. Canicross and rucking are allowed and the route is mostly crushed stone with on-site parking, a cafe and t..

A seven hour time challenge along the River Thames with distances from 3km to 50km, medals and pins, mixed path and trail terrain.

Single-loop trail races of 50 miles, 50K and 20 miles around Ditcham Park School in Hampshire, following parts of the Staunton and Monarchs Ways and the South Downs Way.