Trail Running calendar near Chiltern Hills 2026-2027

Join the Phoenix Hydra 75 Mile Ultra at Denbies Wine Estate in Dorking for a scenic 1 mile off road loop with chip timing and a staffed aid station. Distances run from 12 hour to 100 miles and all entrants receive a free memento.

Run the Maldon Ultras on 20 and 21 June 2026 in Maldon, with 100 mile, 50 mile and 30 mile lapped races across fields, woodland and vineyards with estuary views. Small fields and scenic off road laps make for a friendly yet fierce ultra.

A 21.2 km trail race across the National Trust's Dunstable Downs with about 450 m of ascent, waymarked routes and on course aid. Entry is limited to 300 runners with a 4 hour time limit.

Tackle scenic off road trails at The Martian Race on Horsell Common, with 2 km, 5 km, 10 km and 21 km options for all abilities. Volunteer run and charity focused, this popular event blends nature, challenge and community spirit.

A multi-terrain 10 km event at Twisted Tree Brewery on the private Tusmore Estate in Bicester, with standard and canicross 10 km options. Entry is £32 plus fees and entries close 17 June 2026; finishers receive a medal and a drink.

Community 10 km, 5 km and a free junior run on mixed undulating terrain in Hawkhurst, Kent. The event raises funds for local projects and features finish line cake, a bespoke medal and a complimentary half pint for finishers.

Circular cross country event near Baldock on 21 June 2026 offering routes of 26 miles and 18 miles across undulating Hertfordshire countryside. Entries open 1 March with a limit of 175 places.

A chip-timed trail running event in Trent Country Park, Enfield, offering a 10 km senior race plus junior and kids races, with race photographs provided and specific safety and age rules for participants.

Run the Seasons at Cowdray on 26 June offers scenic 5km and 10km routes plus kids and caniRun options across polo lawns, Cowdray Ruins and the South Downs. Finishers get unique stacking medals, free photos and a BBQ, bar and prize hampers.

Three races at Colworth Estate in North Bedfordshire combine to marathon distance: a 5-mile family run, an 8.1-mile trail and a 13.1-mile half. The event lists free camping and on-site family entertainment.

Trail event at Hyde Hall Farm offering distances from 5k to ultra marathon with lap options for heavy half and ultra. Aid station, baggage area and secure parking are provided and finishers receive a bespoke or lucky dip medal.

A trail running event on 27 June 2026 at Cranleigh Showground with five routes from 5 km to 52 km across the Surrey Hills and North Downs Way. Outposts provide food and self serve water; some long routes require specific mandatory kit.

Gravel Rush Run in Winchester on 27 June 2026 features a 21 km half marathon and a 10 km race at Matterley Estate. Entry fees are listed per participant and a 3% administration charge is added to all entries.

Run scenic off road trails through the Thames Valley at the RunThrough Marlow Trail Run, with 5K, 10K and half marathon options. Enjoy chip timing, a themed medal, free race photos and a lively event village with food and drinks.

A one day multi distance trail running event at Salcey Forest offering 10K, half marathon, marathon and 50 km, on mainly hard packed forest trails. The event is cupless and all finishers receive a medal and a drink.

A multi terrain trail event at 3 Brewers Brewery on 28 June 2026 offering 10 km and a new 5 km option, with a medal, a pint cup and a free beer or non alcoholic drink for every finisher.

Hit the South Downs for the Housedean Half and 10K, a scenic trail with sweeping views over Lewes and countryside. Well supported with water stations, chip timing and on site camping, it is ideal for runners seeking peaceful country miles.

A point to point 50K trail ultramarathon along the Hangers Way from Alice Holt Country Park to Queen Elizabeth Country Park, with fully signed trails, mandatory fluid carry and an option to take coach transport to the start.

Enjoy a scenic, multi terrain 10k from Peacehaven across bridleways and the South Downs Way, finishing through Telscombe village. Junior fun run available and finishers get a bespoke medal, photos and post race refreshments.

A half marathon at Box Hill Fort on 28 June 2026 with more than 3,000 feet of ascent over mostly rough tracks. The route offers views of the North Downs, the Mole Gap, Denbies Vineyard and Dorking.