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Culden Faw, Fawley, Henley-on-Thames, RG9 3AP, United Kingdom
Tough Mudder London West (listed on the Tough Mudder UK site as the West London Event) is a two-day obstacle weekend held at Culden Faw near Henley-on-Thames on 9 and 10 May 2026. The event is promoted as one of the brand's most technically demanding, hillier courses with forest trails, muddy ditches and up to 551m of elevation, and it typically attracts large fields of Mudders across the weekend. The weekend format offers multiple distances and formats so participants can choose the challenge that suits them, from family-friendly options to endurance formats.
The weekend features a broad obstacle line-up (examples include Skidmarked, Well Swung and Pitfall), Mudder Village spectator areas and dedicated kids' offerings, plus camping and spectator passes. Entrants receive 2026 finisher kit items such as a finisher medal (The Hex System), a finisher shirt, headband and a finisher drink; parking is included with ticket purchase. The event is presented by Tough Mudder UK and is supported by charity partners and third‑party charity pages offering fundraising places for organisations such as Macmillan and the Mental Health Foundation.