Trail Running calendar near Caldecotte Lake 2026-2027

Join this flexible timed event along the flat River Thames towpath in Walton on Thames. Complete as many laps as you like over seven hours to achieve distances from 5km to an ultra marathon.

A timed lap event in Crystal Palace Park where runners complete 2.65 km laps within a seven hour limit, choosing distances from 5 km to ultra. The off road course mixes tarmac and gravel and all participants receive a bespoke finishers meda..

A guided 10k run at High Lodge in Thetford Forest that combines trail running with local forest facts and practical tips. It is led at a conversational pace in ability groups, with mostly flat terrain and a couple of small hills.

Timed fell run to the highest point in the South Downs at Queen Elizabeth Country Park, with junior and senior races across multiple off road distances.

Free 5K social group run in Brandon on footpaths, tracks and pavements, passing local heritage sites; under 16s must be accompanied and places are limited to 25 runners.

A five mile trail run on 24 September 2026 at The Viper in Mill Green near Ingatestone. Limited to over 18s with a small field; participants must be self sufficient with phone and headtorch and a tail runner is on course.

Mudfest at Rosliston Forest is a four hour event on a 4 km loop in Derbyshire with small fields and bespoke medals for finishers.

A looped trail event from Henley offering 50 km, 25 km and 10 km distances with covered rest stops, GPS tracking and on site camping. Finishers receive a medal, a finisher's t shirt and a post event meal.

The The Hard Yard will take place in New Alresford on Saturday 26 September 2026. You can run 10 miles.

An overnight backyard ultra at The Waggoners in Welwyn Garden City featuring a repeating 4.167 mile trail loop, official timing, drink vouchers, a commemorative pint glass and a pub athletes menu.

A timed multi lap event on 26 September 2026 in Walton on Thames combining a flat 5.3 km out and back riverside course with a cake themed aid station, multiple distance options and a seven hour time limit.

A forest marathon and shorter route near Henley in Arden on 26 September 2026 with checkpoints, refreshments and proceeds supporting the Heart of England Forest.

A five-lap ultramarathon in Berkeley, Gloucestershire across 25-27 September 2026, covering about 130 miles and 15,000 ft of ascent with a 24 hour cut off and 120 places, organized from Hamfields Leisure with camping and tracking included.

Three community races at Harcourt Hill, Oxford on 26 Sep 2026 with 10 km, 3 km and 1 km options. The 10 km is mostly off road and includes a section of the Oxford Greenbelt Way; medals and prizes are provided.

A themed Time Challenge in Northampton offering distances from 3 km to ultras, themed medals, goody bags and aid stations on trails around the Washlands.

Scenic 5K, 10K and Canicross runs through the private grounds of Highnam Court near Gloucester, with on-site facilities, water stations and prizes.

An autumn running event at Foxes Farm, Colchester on 27 September 2026 offering 10K, 5K and a 1K family dash over traffic-free farm tracks and past pumpkin fields, with chip timing, medals and an event village.

Run Sandringham on 27 September 2026 features a Half Marathon, 5K and Community Mile around the Sandringham Estate. The event includes chip timing for the Half and 5K, water stations, medical support and on site parking.

Rural chip timed 10k and 3k near Grantchester supporting Maggie’s and Addenbrooke’s Charitable Trust with medals, trophies and on site health services.

Ten mile off road trail at Eridge Park with steep climbs, muddy single track, GPX route maps, a finisher memento and cake and a pint at the finish.