The Bruins lead the all-time series with the Gaels, 6-2, and are 4-0 against SMC in Los Angeles.
Senior Norman Powell and freshman Kevon Looney earned second-team NABC All-District honors.
Grant Watson earned his 26th career win, making him the winningest LHP in UCLA history.
No. 15 Bruins sweep weekend action to open up Pac-12 Conference play.
Ridderstrom scores 1.5 points to lead the Bruins.