After dropping the first game of its season-opening doubleheader 5-0, Caltech won the second behind a complete-game seven-inning effort by freshman Daniel Chou. Caltech hadn't won since Feb. 15, 2003.
"It was almost as if they had been there before," first-year coach Matthew Mark said.
It was a non-conference game, though, and Caltech, mainly a Division III participant, has not won a Southern California Intercollegiate Athletic Conference contest since 1988 -- a span of 463 games.
Caltech's men's basketball team ended a 310-game conference losing streak in 2011, while the women's volleyball team ended a 56-match losing streak last year.