Windsor Trail Run Half Marathon

Windsor, United Kingdom • 22 Mar 2026

Windsor Trail Run : March 22, 2026

The event takes place on Sunday 22nd March 2026 at Alexandra Gardens, Alma Road, Windsor SL4 3HU. It is organised by RunThrough UK and offers trail running on flat, well-kept paths near Windsor Castle. The event lists three entry options and fees.

  • 10K - £35
  • Half Marathon - £42
  • RunThrough Foundation Place (no fundraising required) - £80

Course, entries and event services

The course is described as trail and flat. The 10K has a listed elevation change of 29 m and the Half Marathon 58 m. Routes are marked with kilometre flags and marshals are present along the course. Results are chip-timed.

Entries include free race photos and post-race goodies. An event village with food and drink options and partner-provided items is listed for after the race. A discounted event t-shirt is available as an add-on at checkout through the organiser’s kit partner. The organiser also references sustainability work for its events. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
Trail runs nearby

Join Esher Street O, part of the Winter Street O Series by Mole Valley Orienteering Club, at The Wheatsheaf in Esher. Choose a 60 or 40 minute score course with MapRun and relax with food and after the race refreshments at the pub.

Join the STAR Backyard Holmbury St Mary three hour trail challenge on 23 January 2026 and see how many 5 km laps you can complete around Holmbury Hill. A headtorch is required and entry includes a warm bowl of chilli or curry.

Brutal @ Bagshot serves up a muddy, hilly Army training circuit with bogs, twisting climbs and knee to waist deep water holes. The 10 km is two gruelling laps.

Huffin Puffin Run on 24 Jan 2026 at Xcel SPORTS HUB, Walton on Thames. Flat 5.3 km riverside loop with distances from 5 km to ultra; lap as you like within the time limit and enjoy aid stations and digital results.