The Olean (23-18) pounded the Niagara (24-17) on Saturday 12-5.
The Olean scored five runs in the sixth on an RBI double by Jon Kemmer, a sacrifice fly by Seth Heck, a single by Thomas Richards, a steal of home by Brad Rush, , a single by Stephan Adams, and a single by Mike Scarcello.
The teams traded runs for most of the contest, leading to four lead changes in the game.
Joe Chittester racked up four RBIs on two hits for the Olean. He singled in the third inning and homered in the fifth inning.
Brandon Nemeti improved to 5-1 on the year by picking up the win for the Olean. Nemeti struck out one, walked one and gave up one hit.
Jordan Schwartz ended up on the wrong side of the pitching decision, charged with his first loss of the year. He allowed six runs in four innings, walked five and struck out three.