Griffin Canning struck out eight and Chris Keck and Luke Persico each homered in the win.
Bruin senior averaged 26 points, 5.5 rebounds, 2 assists and 2 steals in two UCLA home victories.
Pinizzotto captures medalist honors.
The Bruins have won the last three meetings against their crosstown rival.
UCLA hosts USC in Pauley Pavilion in a nationally-televised game (ESPN2) Wednesday at 6 pm PT.