2012 Event During the U.S. selection trials, U.S. track and field athlete Ashton Eaton sets the new world record for the decathlon 1992 Event Dan O'Brien sets world record decathlon (8891 pts) 1992 Event Dan O'Brien fails on pole vault and eliminated from Olympics decathlon 1984 Event Jurgen Hingsen of W Germany sets record for decathlon, 8,798 pts 1948 Event Bob Mathias, U.S., wins decathlon at London Olympics
