Bakersfield added two more runs in the ninth on a two-RBI single from Cloyd to cap the scoring.
Wilkes led the offense with four RBIs, while May finished with three RBIs including his home run. Elijah Pelayo scored four runs and recorded three hits, and Cloyd added three RBIs in the 16-hit effort.
On the mound, Jacob Gutierrez (4-2) earned the win in relief, tossing 3.2 scoreless innings with three strikeouts. Shane McAlinden got the start, allowing one run over 4.1 innings, while the Roadrunners bullpen combined to hold the Highlanders to just one run on seven hits.
UC Riverside starter Matthew O’Brien (3-4) took the loss after allowing three runs over five innings.
CSU Bakersfield will look to carry the momentum forward after clinching the series over the Highlanders.