Maryland took the first two games of the series before the Nittany Lions avoided a sweep with a 10-7 victory on Saturday.
Jack Kelly's game-winning goal with 40 seconds left secured Penn State's regular season Big Ten title.
Bolton was typically one of the Nittany Lions' first options off the bench in his freshman year, scoring 11.6 points per game and shooting a team-high 87.6 percent from the free throw line.
The NCAA rejected a proposal put forth by the SEC that would give the option to schools to upgrade their volunteer assistant coaching position in baseball and softball to a third full-time assistant position.
The Nittany Lions fended off two late-inning rallies on a lackluster night for the offense.
The Bison came from behind to win the opener, but the Nittany Lions used their own comeback to win the second matchup with a walk-off hit from senior first baseman Meghan Williams.