Tough Mudder London West, live.

Mud and woodland at Culden Faw

Tough Mudder London West is an obstacle event at Culden Faw, Fawley, near Henley-on-Thames, on Saturday 8 and Sunday 9 May 2027.

Tough Mudder is built around teamwork rather than racing the clock. The 15K course has more than 20 obstacles and the 5K has more than 12, and both run on Saturday and Sunday. Infinity is on the Saturday only: racers take the 15K course and keep adding laps in the time allowed.

Culden Faw is 1,000 acres of private estate. The organiser calls it some of the most technical terrain on its 2027 calendar, with dense woodland trails, deep water-filled ditches and steep hills, shared with around 15,000 others across the weekend. Expect to be wet and muddy from early on.

It suits groups of friends, workmates and charity teams as much as people training for something harder. Finishers get the 2027 medal from the new Hex System, a finisher shirt, the orange headband and a drink at the line. Parking is included in the ticket. Kids by Spartan runs short obstacle courses for ages 4 to 14, and the Adaptive Athlete Programme pairs athletes with course guides.

Spectators can buy a Mudder Village pass to watch the obstacles and enjoy the festival area with food, drinks and entertainment.

On Livebib you can follow a participant who chooses to share their own live position from the phone they carry on the course. That dot is the person's own sharing, not the organiser's timing, and any official results come from the organiser.