Westonbirt Arboretum Summer Series
Relish Running Races stages a series of runs at Westonbirt Arboretum with events in September 2026 and February 2027. The programme includes a mix of distances and a separate night 10km event in February.
Distances
- Half Marathon
- 10 km
- 5 km
- 1 Mile Fun Run
Most routes run on solid stone forest paths and are largely very flat with a few small rises. Courses are comprehensively marked and marshalled. Runners are started in waves of about 150.
Feed and support vary by distance: there are no drinks stations on the 5km, one feed station on the 10km, and three feed stations on the half marathon. Feed points and finish lines offer water, electrolyte, and a mix of food including gluten free, dairy free and vegan options. A medical team is present on course.
Medals are 10 cm by 10 cm, full colour on both sides, with separate ribbons by distance. Group discounts apply for entries of 10 or more runners.
Essentials
Location: Westonbirt Arboretum, Westonbirt, Tetbury, GL8 8QS.
When: Saturday 5th September 2026. Start Times from 08:00. Sunday 6th September 2026. Start Times from 08:00. Saturday 6th February 2027 (NIGHT). Start times from 18:00. Sunday 7th February 2027. Start times from 09:00.
Minimum Age: Half Marathon (17), 10km (14), 5km (12). No minimum age for the fun run.
Terrain: The vast majority of the routes are on solid stone forest paths. The routes are largely very flat, with only a couple of little rises and falls.
Transport: The nearest train station is Kemble, which is 9 miles from Westonbirt.
Parking: Car parking space is limited. Please car share. For September 2026 and Sunday Feb 2027, there will be no parking charge, instead there will be entry charges for the arboretum for runners who sign up on the day and all spectators.