The Hart High School right-handed pitcher joins a class of 15 players who have signed with UCLA.
The Bruins are 6-0 in midweek games this season, out-scoring opponents 30-11 in those games.
With tonight's win, the Bruins (14-4) are off to their best start in conference play since 1969.
Grant Watson allowed just three hits over 6.1 innings to propel UCLA to the series tying win.
Junior James Kaprielian struck out a season-high 11 batters, but UCLA fell in game one to Cal.