Pat Cantwell's homer accounted for Stony Brook's only run off Plutko (12-3), who allowed five hits and struck out seven in seven innings. Plutko has given up just three runs and 14 hits in 23 postseason innings.
Stony Brook (52-14), a Division I baseball program for only 12 years, emerged on the national scene this week with its "Shock The World" mantra after upsetting powerful LSU in a three-game super regional in Baton Rouge, La.
The upstart Seawolves, from Long Island, came to town as the first team from the Northeast to play at the CWS since Maine in 1986.
On college baseball's biggest stage they were no match for a UCLA team that has won 134 games the last three seasons - the best stretch in program history.
The Bruins, winners of 10 straight and 20 of their last 22, have outscored the competition by 42-10 in six NCAA tournament games.
Stony Brook has staved off elimination five times in the tournament and will have to do it again Sunday in order to extend its stay in Omaha.
Friday's second game in the double-elimination tournament at TD Ameritrade Park pitted No. 3 national seed Florida State vs. Arizona.
Stony Brook coach lauded
Before Friday's game against UCLA, Stony Brook baseball coach Matt Senk was named coach of the year by the National College Baseball Writers Association.
The Seawolves went into the UCLA game with the most wins and highest winning percentage in the country.