Spring Trail Series by Ultra X

Haslemere, United Kingdom • 18 Apr 2026

Event overview

The Spring Trail Series is scheduled for 18 April 2026 at Cowdray Estate, Surrey, inside the South Downs National Park. The route follows the Serpent Trail through greensand hills, rivers, woodland and lowland heath. The organiser expects over 1,200 runners and walkers. The event technicality is rated 1/5 and the published temperature range for the day is 7-20°C.

Distances offered:

  • 12km
  • 25km
  • 50km
  • 50 miler
  • 110km

Logistics and services

All races start and finish at the same location just outside Cowdray Farm Shop, with event parking at the start/finish village. An expo at the start/finish will offer merchandise, hot drinks and food. Camping is available for Friday and Saturday nights; pitches can be booked during registration.

The organiser lists included services such as a fully marked course, medical support throughout the event, fully stocked aid stations and hot water for preparing food at the campsite, and a finisher’s medal. Cut-offs are described as very relaxed, with an average allowance of over two hours per 10km between checkpoints. Registration prices are shown from £35 to £120. If a participant cannot finish, they are offered entry to the next edition at half price, without a finisher’s medal or official result. Visit the organization's website for the most recent information.

Race information

UTMB 20K UTMB 50K UTMB 100K
110 km
110km
50 mi
50 Miler
50 km
25 km
12 km
Visit the organization's website for the most recent information.
Trail runs nearby

Join SE Champs Weekend on 15 and 16 November for night and middle orienteering in a largely new area beside Britty Wood, open to all abilities. Expect tough championship courses, friendly atmosphere and on site toilets and refreshments.

Explore the woods around Slindon with South Downs Orienteers on Saturday 15 November, with multiple courses to suit all abilities. Juniors can enter free with a special code; contact the organiser if you need one.

Roly's Run is a scenic Meon Valley trail loop from Swanmore via the South Downs Way, offering 15.5 mile, 21.5 mile and a tough 40 mile option. The event is full and new entries are placed on a waiting list.

Join the Smurf Run, a friendly 7 hour challenge along the Thames at Wraysbury. Finish 3 km to earn a Smurf themed medal and keep going to collect distance pins for half marathon, marathon and ultra achievements.