United Kingdom
Apr
11
Saturday
50 Mile Grand Slam
Centurion Running’s 50 Mile Grand Slam 2026 is a four-race ultramarathon series, consisting of four 50-mile events on famed UK trails: South Downs Way 50 (11 Apr), North Downs Way 50 (16 May), Chiltern Wonderland 50 (19 Sep), and Wendover Woods 50 (14 Nov). The four races are grouped as All Four 2026 50 Mile Events, with entry managed through SiEntries. Organised by Centurion Running, the Grand Slam invites participants to complete all four 50-mile routes.
An optional XCover refund option is available to cover unforeseen absences. These events showcase trail ultrarunning across England's varied landscapes. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
50 mi
Wendover Woods 50
50 mi
South Downs Way 50
50 mi
North Downs Way 50
50 mi
Chiltern Wonderland 50
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