Anthony Battaglia held the Richmond RiverRats (21-31) scoreless for 5 2/3 innings to boost the Butler Blue Sox (30-22) to a 3-2 victory.
Battaglia struck out five and allowed two walks and three hits.
Trey Garrett was effective even in defeat, mowing down five the Butler Blue Sox batters and allowing one run.
Tyler Ferguson got the win, running his season record to 4-1. He struck out four, walked none and surrendered one hit.
Scott Ashford was charged with his first loss of the year. He lasted just four innings, walked none, struck out three, and allowed two runs.