The Agria Blenheim Palace International Horse Trials is an international equestrian event held annually at Blenheim Palace in Oxfordshire, England. The 2025 event will take place from September 18–21. 

The trials feature the three equestrian disciplines of dressage, cross-country, and show jumping, set against the historic backdrop of the palace, a UNESCO World Heritage Site. 

Blenheim 2025 event details

The 2025 event is a significant one, as it will host the Agria FEI Eventing European Championships. 

• Dates: Thursday, September 18 – Sunday, September 21, 2025. The opening ceremony is on Wednesday, September 17.

• Location: Blenheim Palace, Woodstock, Oxfordshire.

• Competitions: In addition to the European Championships, the event will also feature the popular GFS Saddles 8 & 9 Year Old class and the evoke Eventer Challenge.

• Shopping: Visitors can browse a shopping village with over 200 lifestyle and country brands.