Schaumburg tied the game up in the second with an RBI groundout from Dylan Jones and a wild pitch that scored Kenny Towns from third base.
The Otters retook the lead with two runs in the fourth. Mike Rizzitello singled home Harrison and then a balk allowed Brandon Dulin to score from third and put the Otters up 4-2.
Evansville added another run in the seventh on an RBI fielder’s choice from Toby Thomas to take a 5-2 lead.
Mitch Aker then came on in the ninth to close out the game and earn his eleventh save of the season.
Luc Rennie gets the win for the Otters, his third of the season. The righty tossed seven innings, allowing just two runs, and striking out six.
Joe Hauser is dealt the loss for the Boomers. Hauser worked four innings and gave up four runs, two earned, on six hits.