Clay Chapman held the Lake Erie Crushers (14-13) scoreless for 7 2/3 innings to boost the Windy City ThunderBolts (18-11) to a 4-2 victory.
Chapman allowed three hits, two walks and struck out two.
Tim Zier racked up two RBIs on three hits for the Windy City ThunderBolts. He singled in the fifth, seventh, and ninth innings.
Steve Hagen (2-1) was the game's losing pitcher. He lasted just 5 2/3 innings, walked two, struck out four, and allowed one run.