Jesse "Jess" Philo Mortensen (April 16, 1907 in Thatcher, Arizona – February 19, 1962) was a NCAA champion track athlete and coach. Mortensen is one of only three men to win Division I Men's Outdoor Track and Field Championship team titles as both an athlete and coach.
Mortensen enrolled at the University of Southern California (USC) in 1928. While at USC, he won eight varsity letters, three each in basketball and track and field and two in football. In basketball, he was selected as an All-Pacific Coast Conference player in 1928. In football, he played at the left halfback position and was a member of the 1929 USC Trojans football team that defeated Pittsburgh in the 1930 Rose Bowl. In track and field, Mortensen was captain of the 1930 NCAA championship track team. He won the 1929 NCAA javelin title and set a world record in the decathlon in 1931.
The 1920, 1928, 1932, 1992, 1996, 2000, 2004, 2008 and 2012 championships incorporated the Olympic Trials, otherwise held as a discrete event.
Ken Churchill had the longest throw in the 1932 competition (which doubled as the Olympic Trials), ahead of Malcolm Metcalf. However, Churchill qualified for the final only due to a late rule change by the U.S. Olympic Committee, allowing eight rather than five finalists. As this rule change applied only to the Olympic Trials, Churchill is considered to have won at the Trials and Metcalf at the national championships, even though they were the same meet.