BOS OCR Endurance League

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  • World’s Toughest Mudder

    Location: Belvoir Castle Belvoir Castle, Grantham, Lincolnshire

    In 2027, World’s Toughest Mudder will return again to the [...]

  • Farmyard Jam

    Location: Mercaston Lane Brailsford, Derbyshire

    Farmyard Jam is returning in 2027! The mud is calling… [...]

    • All listed events based in the UK have been licensed by British Obstacle Sports, and all events listed are covered by British Obstacle Sports membership insurance. Please note that events remain the responsibility of the event organisers, and British Obstacle Sports does not manage or deliver the events unless stated.