Avishek Sengupta, 28, of Ellicott City, was hospitalized on Saturday after taking part in the “Walk the Plank” portion of the event, in which participants jump 15 feet into freezing waters.
Sengupta was removed from life support on Sunday evening. His event has been ruled “accidental.”
“As organizers, we take our responsibility to provide a safe event to our participants very seriously,” said Will Dean, CEO of Tough Mudder in a statement. “Tough Mudder is devastated by this tragic accident.”
Sengupta’s death is the lone fatality in Tough Mudder’s three-year history, which includes over 50 events with about 750,000 participants.
The Berkeley County Sheriff’s Department has now launched an investigation into the fatal incident.
Tough Mudder courses are 10 to 12 miles and are billed on the company’s website as “probably the toughest event on the planet.”