Trail Running calendar near Ashtead 2025-2026

ATW Odyssey12 is a multi-terrain running event held at Riverside Park, Regatta Meadow in St Neots, Cambridgeshire (PE19 7AB). It forms part of the ATW First to Full Triathlon Festival, with three events — Odyssey12, Odyssey Triathlon, and St Neots Triathlon (Race 2) — running side by side. Runners c..

The Black Bull 15 Mile Trail Run and 15 km Trail Run in Chelmsford, Essex, is staged by Multisport-Management. The event features a 15-mile loop through local countryside and country roads, with a non-competitive 15 km option for those who prefer a jog or walk. Runners start and finish in the pub ga..

The Windsor Trail Run, organized by RunThrough UK, takes place at Alexandra Gardens in Windsor, UK. It offers 10K and Half Marathon distances along a flat, trail course with light elevation (29m for 10K, 58m for the half). The route showcases Windsor’s royal scenery, including distant Windsor Castle..

Set along the River Thames at Temple Island Meadows, Henley-on-Thames, the Henley River Half Marathon, 10K & Junior Race from RunThrough UK offers a late-summer Riverside challenge. The event features three distances: half marathon (the route includes a mini lap plus two laps), 10K (one lap), and a..

Silent Pool 10km is a guided trail run hosted by Running Adventures, starting and finishing at Silent Pool Car Park in Albury, near Guildford. The 10km route winds along North Downs Way sections and through Netley Heath forest, finishing in the village of Shere where film locations from The Holiday..

The South Downs 100 mile (Autumn Event) is a challenging single-loop trail race held in the scenic South Downs National Park, starting at Plumpton Racecourse in Lewes, East Sussex. Covering 100 miles with over 12,000 feet of elevation, the course features rolling hills and stunning views, supported..

Starting and finishing at St Martha's, Guildford, the North Downs Way Ultra Run is a 30-mile trail journey through the Surrey Hills. The route highlights the best sections of the North Downs Way, including Box Hill and Denbies Wine Estate, with sweeping downs views before looping back to Guildford v..

Take on a picturesque autumn challenge at Windsor Trail Run on Sunday 8 November 2026. Set in royal Berkshire, this RunThrough event offers a Half Marathon and 10K on a flat, off-road trail course beginning and finishing near Alexandra Gardens. Located in royal Berkshire, the route offers royal view..

Devil's Punchbowl 10km is a guided trail run organized by Running Adventures. The route starts at Devil's Punchbowl Car Park in Hindhead, Surrey, and covers about 10km of scenic trails around the Devil's Punchbowl, a natural amphitheatre famed for its views and rolling hills. The run is designed to..

Serpent Trail Ultra Run is a 30-mile guided trail run starting and finishing in Haslemere, Surrey. Run by Running Adventures, the route showcases the Serpent Trail and the Sussex Border Path, including a visit to the Temple of the Winds lookout with views across the South Downs. The course winds thr..

Box Hill Vertical KM is a guided trail run organized by Running Adventures in Box Hill, near Dorking, Surrey. The route covers about 12.5 miles and targets roughly 1000 meters of elevation gain, designed to gain height in a short distance. Runners pass through woodland, heathland and open fields, wi..