Cal State Monterey Bay scored three in the final inning to rally for a 4-2 win.
Down three early, the Cougars posted a 7-6 win against Western Oregon.
The Cougars split a Friday doubleheader against Western Oregon in the second and third games of a four-game set.
Western Oregon's three-run third inning was enough as they handed the Cougars a 3-1 setback.
The Cougars are ready to begin their trek towards a berth in the NCAA Championships.
The Cougars were picked to finish third in the preseason poll of PacWest head coaches.