Chiltern Hills 100K

The Ealing Eagles Trail 10K is a running event held at Brent Lodge Park in London, offering a 10-kilometer trail race along with a junior 1-mile race. The course details are available on the organizer's website, and all finishers receive a memento. The event emphasizes easy access via public transpo..

The Jennett's Park urban orienteering event, hosted by Berkshire Orienteers (BKO) in Bracknell, offers three courses: Long (5.8 km straight line, 8.2 km optimal), Medium (4 km straight line, 5.4 km optimal), and Short (2.4 km straight line, 2.5 km optimal). Suitable for all abilities, the event emph..

The Orion Harriers Forest Five is a mile race series held at Jubilee Retreat, initiated in 2009 to support the Orion Harriers clubhouse. The 2025 series includes three Saturday morning races on June 7th, July 5th, and August 2nd. Participants can compete individually or in age categories, with troph..

The Chiltern Ridge Half Marathon, organized by Runaway Racing, is a challenging 21.1 km trail race held along The Ridgeway National Trail in Buckinghamshire, between Wendover and Princes Risborough. Starting and finishing in Wendover, the course features an undulating forest loop at Whiteleaf Hill N..

The Horton Country Park Summer Series 2025 is the third event in a four-part summer evening orienteering series organized by MVOC, held at Horton Country Park near Chessington, UK. It offers a welcoming atmosphere for runners of all abilities, featuring a 60-minute score course with an odds and even..

Race to the Stones is the UK's largest ultramarathon, held along the ancient Ridgeway trail from Lewknor to the 5,000-year-old Avebury Standing Stones, a UNESCO World Heritage site. Covering 100 kilometers with 1,340 meters of elevation, the event offers a non-stop challenge or a two-day option with..