Westonbirt Arboretum Summer

SEP
5-6
2026
Experience a unique run through the National Arboretum on solid forest paths. With distances from 1 mile to a half marathon, this event offers a flat course surrounded by thousands of rare tree species.
Half Marathon 10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Westonbirt Arboretum Summer

The Westonbirt Arboretum Summer races take place within the grounds of the National Arboretum in Tetbury. The venue is home to over 2,500 species of trees, including five national collections and rare specimens from around the world. The course transitions through various areas dedicated to specific tree species, offering a varied landscape for participants.

The event features several distances over two days:

  • Half Marathon
  • 10 km
  • 5 km
  • 1 Mile Fun Run

The terrain consists primarily of solid stone forest paths, providing a firm surface similar to a road while maintaining the setting of a trail run. The routes are mostly flat with minor elevation changes and are marked with distance indicators and marshals. For the Half Marathon, there are three feast stations providing water, electrolytes, and various snacks including gluten-free and vegan options. The 10 km route includes one feast station, while the 5 km distance does not have a drinks station on the course.

Participants are released in waves of approximately 150 runners to ensure sufficient space on the paths. Age requirements vary by distance: participants must be at least 17 for the Half Marathon, 14 for the 10 km, and 12 for the 5 km. There is no minimum age for the fun run. The event provides a bag drop and on-site toilets, though no changing rooms are available. The routes are suitable for buggy runners, but the event is not open to canicross.

All finishers of the 5 km and longer distances receive a double-sided medal and access to a post-race buffet. Prizes are awarded across various age categories based on the number of finishers in each distance. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
10 km
5 km
1 Mile Fun Run
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.