8th triathlon death this season

A Las Vegas man died of unknown causes during the swim leg of the Pumpkinman Triathlon at the Lake Mead National Recreation Area in Nevada on Saturday morning, National Park Service and local authorities have confirmed.

Christie Vanover, public affairs officer for the recreation area, told ESPN.com that the man was spotted at 8:55 a.m. by a kayaker on the swim course, who summoned park rangers in a patrol boat. CPR was administered on the boat and the man was transported to the Boulder City (Nev.) Hospital, where he was pronounced dead at 9:30 a.m.

KSNV-TV reported that the Clark County Office of the Coroner/Medical Examiner identified the man as 59-year-old Patrick Hayden. An autopsy was scheduled for Sunday.

It was not immediately clear what distance race the man had entered: sprint, Olympic distance or half. Races of all three formats were being held Saturday in the event, which was sanctioned by USA Triathlon, the sport's national governing body.

The triathlon death was the eighth this season and the 53rd overall in the United States since 2007, according to research by "Outside the Lines.'' Of those deaths, 45 have come in or upon exiting the swim leg.