Trail Running calendar near Seaford 2026-2027

We have found 339 Trailruns within 80 miles of Seaford. See below where and when you can find the races.

Trail running in the New Forest from Roundhill Campsite, on wide hard-packed paths through woodland and heath. Two route options are available, including a half marathon with 183 m elevation gain, and finishers receive a medal and a drink.

A 50 mile trail race made of five 10 mile loops inside Wendover Woods, with marked trails, nine aid stations, full medical cover and strict qualification and kit requirements. The route includes substantial climb and a 15 hour cut off.

UTMB Index

Multi-terrain 5 km and 10 km races in the Chiltern Hills on 15 November 2026, organised by Radnage C of E Primary School PTA with proceeds to the school. Village hall HQ offers a cafe, water stations and first aid on course.

A flat trail run along the River Thames from Alexandra Gardens in Berkshire, offered in 21 km and 16 km distances. Finishers receive a medal, a drink, and finisher goodies.

A 10 km race in Kingston on 22 November 2026 that starts and finishes at the Hawker Centre, running through town and along the river towpath. The event uses chip timing, provides a finish medal and refreshments, and offers baggage drop and..

Guided *10 km* trail runs around the Devil's Punchbowl in Hindhead, Surrey, with hilly trails, sunset and night options, headtorch and shoe trials, and group pacing in a non competitive format.

A trail run in the South Downs National Park starting from Plumpton Racecourse, offering three route distances from 9 km to 21 km with ridge trails, coastal views, and a flat final section to the finish.

Take in riverside views at the Riverside Marathon and Half Marathon in Walton on Thames on 28 November 2026. Flat, UKA certified towpath course, limited places, medals for all finishers and virtual entry available.

Scenic riverside marathon and half marathon on a flat UKA certified towpath from Walton on Thames to Hampton Court and back. Lapped format with finisher medals and virtual entries.

A guided 30 mile trail run from Haslemere along the Serpent Trail and Sussex Border Path, featuring Blackdown, the Temple of the Winds and varied heathland and woodland. Group format with route support and trainer guidance.

December 2026

A hilly trail 10 km through the woodland and parkland of Hughenden Manor near High Wycombe, fully waymarked with a water station at 5.3 km and on-site facilities at the National Trust venue.

A guided trail run on Box Hill that gains about 1000 m over 12.5 miles, featuring technical climbs, scrambling and varied terrain. Group paced for sustained trail running ability with parking at Stepping Stones Car Park.

A single loop 55 mile trail race around the South Downs, starting and finishing at Plumpton Racecourse. The route covers grass trails, farm tracks and woodland paths, includes 7,000 ft of ascent and seven aid stations.

A **50 km** trail ultramarathon from Dorking along the Greensand Way into the Surrey Hills, featuring a 5 mile loop and climbs over Leith Hill, Holmbury Hill and Pitch Hill. The route is fully signed, supported and electronically timed.

A seasonal ten mile multi terrain race in Peacehaven with farm tracks, quieter roads and a notable hill around mile six. The event includes fancy dress, recycled finisher medals, charity partners and photos supplied by Sussex Sports Photogr..

A 200 mile continuous trail run looping around the South of England from Juniper Hall. Runners have up to 96 hours, live tracking, and access to three major aid stations with crew support and drop bags.

UTMB Index

Join the Christmas Jumper Friday Run on 11 December in Walton on Thames for a relaxed rock up and run along the riverside towpath. Pick 5k to ultra, run laps within a 7 hour window and earn a bespoke finisher medal.

Join the Mince Pi Run in Guildford for a Pi themed run by the water, with distances from a 1 mile kids fun run to the 3.14 mile loop and laps up to a Pi marathon. Every finisher gets a bespoke Pi Pie medal.

A 10 mile cross country run through the West Wight landscape on 13 December 2026, with hilly terrain, strong marshal support and a memento for finishers. Entry is limited and the published fee is £27.50.

Join the 20th Christmas Pudding Dash near Pett, Hastings for a festive muddy cross country with a looped main race of about 4.2 miles plus a fun run and children's scurry. Enjoy medals, photos, fancy dress prizes and support for Shelter.