 At Washington, Sinclair was a multi-year All-American.Tom Sinclair also holds the Washington state high school (WIAA) record for the javelin throw at 239-1.After a second-place finish at Pac-10s, and fourth at the NCAA Championships during his junior year, in Sinclair's senior season he was the Pac-10 champion and went on to win the 1979 NCAA championship with a throw of 261-3, which, at the time, was the University of Illinois stadium record.