Trail Running calendar near Princes Risborough 2026-2027

Scenic out and back races along the Thames Path from Petersham & Ham Sea Scouts HQ to Barnes, offered as 10 km, half marathon and marathon options with staffed checkpoints and medical cover.

Choose from 25 km, 40 km, or 50 km routes in this self-navigated challenge through the Thames Valley. Starting from Marlow, this event features supported checkpoints and a group meal at the finish.

A coastal ultramarathon of about 75 miles along the Essex saltmarsh from South Woodham Ferrers to Salcott, offering two day, continuous and three person relay options with GPS tracking, regular aid stations and downloadable GPX routes.

Test your endurance at MacTuffX Brierley Hill in October 2026. Choose between 400m and 800m intervals in solo, double, or relay formats for a unique racing experience. This event is open to all participants aged 18 and over.

Experience a scenic multi terrain race through East Grinstead dedicated to local charities. This friendly event features a flat course along bridleways and residential roads with chip timing and a sustainable finisher medal.

Timed trail event in the Forest of Bere using a 3.28 mile out and back lap with distances from 5 km to ultra. Aid station offers sweet and savoury food including potatoes and vegan options; 20% of proceeds support Forestry England.

A half marathon and 10 km run at RAF Greenham Common in Thatcham, Berkshire, on a flat traffic free course with water stations and marshals. The event supports New Life Special Care Babies and includes a children race and free parking.

An off road charity marathon between Salisbury and Winchester along the Clarendon Way, with a full 26.2 mile race and a 5 mile Mini. Organised by local Rotary clubs, the event provides maps, GPX files, and a printed Souvenir Program.

A flexible 6-hour timed run along the flat Jubilee River towpath. Run one 5.24-mile lap or see how many you can complete. The scenic route passes through countryside with views towards Windsor Castle.

Set in the scenic Sence Valley Forestry Park, this flexible 6 hour event allows you to run as many 3.3 mile laps as you choose. Experience a mix of woodland trails and lakeside paths with distances ranging from 5k to ultramarathon.

A looped trail event from Maidstone in the Kent Downs offering supported 50 km, 25 km and 10 km options with covered rest stops, GPS tracking, camping and shuttle services at the Kent Showground basecamp.

An hourly backyard ultra at Turvey House where runners complete a 4.167-mile (6.7 km) loop each hour, with solo, pairs, 8-hour and 7-hour capped options, chip timing, aid station, first aid and prizes.

Inflatable 5K in Cheltenham on Saturday 10 October 2026 is a five kilometre obstacle course made of inflatables. Recent listings show a five star rating and 34 bookings in the past week.

Experience the iconic trails of Surrey with a choice of three distances through woodland paths and ridgelines. Enjoy a chip timed challenge featuring elevation and scenic views at Box Hill.

A 55 km circular, self navigated trail around the Forest of Dean that mixes technical single track, riverside running and ridge views. Beechenhurst is race HQ; aid stations, medical support and a separate canicross category are provided.

A guided trail half marathon in the Chiltern Hills covering about 21.1 km with roughly 300 m of ascent. Runners are grouped by ability and accompanied by qualified Run Leaders, with a midway refreshment point and a finisher’s medal included..

Fortitude Ultra at Pippingford Park is a 10 hour, 10 lap endurance challenge on roughly 3, 4 and 5 mile loops with up to 215 m elevation per lap. Finishing grade is set by the shortest loop completed and entrants receive a medal and shirt.

Experience an autumn trail run through ancient woodland at the Epping Forest Wildwood Trail Series. Choose between a 10K or Half Marathon course on fully marked paths with a strong focus on sustainability.

Commando Series at Hever Castle on 10 and 11 October 2026 offers 3K, 6K and 12K obstacle mud runs modeled on Royal Marines training, plus a two hour survival experience and an event village with music and attractions.

Choose a scenic 10k or shorter 5k through the Chiltern Hills around Frieth, combining woodland paths and country roads. Expect rolling climbs and panoramic views for a rewarding, hilly challenge for road and trail runners.