Sophomore forward Dustin King (Castalia, OH/Margaretta) netted the game-winner, unassisted, in the 66th minute, after dribbling past the Bobcats' goalkeeper and a would-be defender. King scored one goal in 15 appearances last year.
Wolverine junior goalie Brad Smith (North Huntingdon, PA/Norwin) earned his ninth career shutout with six saves, while senior sweeper Andy Shockey (Mechanicsburg, PA/Cumberland Valley) provided several critical clears as Grove City survived 14 Bobcat shots.
Pitt-Greensburg outshot Grove City 10-0 in the first half and 14-4 in the game.
Wolverine head coach Dr. Don Lyle opened his 30th season at the helm.