The Buckeyes struggled much of the day, but took control in the second half.
The Penguins gave the Illini all they wanted for most of the game.
Jamestown's Tyler Filliben hit a solo home run in the top of the eighth inning.
The Indians lead, 1-0, in the top of the fourth inning.
Jason Kokrak shot a first-round 78 Thursday in the PGA Championship.
Penguins, Illini will kick off at noon on Aug. 30.
Cleveland Indians left-hander T.J. House will start for the Scrappers on Wednesday night.
McDonald High graduate Matthias Tayala won the hammer throw at the NCAA Outdoor Track and Field National Championships on Thursday.
Jason Lee, already a teacher at Howland, has been hired as the Tigers' boys basketball coach.