Trail Running calendar near Henley-on-Thames 2025-2026

Experience the Winter Day Race at Westonbirt Arboretum on 8 February 2026 with scenic 5 km and 10 km routes through diverse tree collections on firm, trail like surfaces for a fast, enjoyable run. Tickets are sold out.

XTERRA Matterley is an off-road sporting event held at the scenic Matterley Basin in Hampshire, United Kingdom. Scheduled for February 14-15, 2026, it offers a variety of race formats including duathlons and trail runs suitable for athletes..

The 'Rayne'ing Medals Anniversary Challenge is a running event celebrating six years of Hare & Tortoise Running, taking place on The Flitch Way in Rayne. Participants can choose from five entry options, including a marathon, 6-hour timed ev..

Event details The Hadleigh Legacy 10k is scheduled for 22/02/2026 at Hadleigh Country Park, Chapel Lane, Hadleigh, Essex SS7 2PP. The event is an off-road 10k trail race on undulating terrain. On-the-day entries are listed at £30 for the 10..

Run 42 miles of history on the St Peter's Way Ultra from Chipping Ongar to Bradwell on Sea, finishing along a dramatic sea wall. Waymarked country trails, staffed checkpoints and classic muddy fun await.

North Downs Ridge 50k Ultra, organized by Freedom Racing, runs along the North Downs Way from Denbies Wine Estate near Dorking to Guildford and back, incorporating a Surrey Wildlife Trust reserve at Norbury Park. The 50-kilometer trail ultr..

Winter Trail Run is the fourth edition of the Trail Run at Gatton Park, near Redhill/Reigate, RH2 0TW. The event offers a 5K multi-terrain loop around the scenic Gatton Park and you can choose to run one or two loops for 5K or 10K. The atmo..

The Ironwood Challenge, organized by Nailsea Running Club, is a trail race near Long Ashton, North Somerset. The six-mile course runs through woodland, fields and forest, with sections that are often muddy. It is fully marked and marshalled..

Two Tunnels Races in Bath, UK, organized by Relish The Great Outdoors, offer a unique underground running experience alongside city scenery. The courses pass through the Devonshire Tunnel (408m) and the longer Combe Down Tunnel (1672m), bot..

BigMud Trails (EARTH) is the first event in the Classic Element Trail Series, celebrating the element of Earth. Set in the scenic Meon Valley at Queen Elizabeth Country Park, participants can choose between a 16-mile or marathon distance, b..

Thursley Common 10km is an evening trail run hosted by Running Adventures in Thursley, Surrey. The 10km route weaves through the Thursley National Nature Reserve, a 325-hectare expanse of heathland, peat bogs, pine and deciduous woodlands,..

Join the G3 Series at Newlands Corner, Guildford for a scenic 10km or 15km trail run on Saturday 28 February 2026. Expect rolling Surrey countryside, friendly competition and a welcoming event village at the start.

Enjoy a guided 30 mile trail along the South Downs Way from Harting Down, weaving through ancient woodlands, Kingley Vale and rolling chalk hills. This non competitive group run offers stunning scenery, friendly pacing and expert guidance.

Event overview The Imber Ultra is an annual trail run of 33+ miles. The next edition is scheduled for Sunday 1 March 2026. The event is organised by Avon Valley Runners together with the Rotary Club of Westbury. Free photos from the 2025 ru..

Run scenic trails around Pitsford Water from Brixworth Country Park with measured 10k and half marathon options. Expect rolling countryside, good on course support and a finisher medal; bring trail shoes and a personal cup.

Up on the Downs, hosted by Tri-Counties Trail Running, takes place at Breamore House near Salisbury. Runners can choose from 5k, 10k (about 11.5k), or a half marathon, all starting and finishing at Breamore House. The route is mainly trail,..

Join a guided 10 km trail run from Silent Pool Car Park in Albury near Guildford, exploring the North Downs Way, Netley Heath and the village of Shere. Led by an experienced coach, this friendly group run suits fit runners who can maintain..

Event overview The Humanity Direct Amersham Ultra is a one-day running and walking event on 7 March 2026 at Dr Challoner's Grammar School, Amersham, Buckinghamshire. Distances on offer are: 50 km (ultra) 25 km (half ultra) 10 km The cours..

Take on scenic but strenuous trails around Eastbourne and the Seven Sisters on 7 March 2026 with 10K, half, marathon or ultra distances. Expect chalk and woodland underfoot and sweeping English Channel views.

Event details The Winter Green Man Ultra is a looped trail race around the Community Forest Path near Bristol. Distances offered: 45 miles / 72 kilometres 30 miles / 48 kilometres The 45 mile race is a full anti-clockwise loop starting an..