After winning no faceoffs in the first quarter, Mullins won 10 to secure the momentum for Penn State.
Levi Haines, Carter Starocci, Aaron Brooks, and Greg Kerkvliet were named Dan Hodge Trophy finalists.
O'Neill was named the Intercollegiate Women's Lacrosse Coaches Association Offensive Player of the Week and Big Ten Player of the Week.
The 5K is held annually to showcase solidarity with the LGBTQ+ population at Penn State.
Allen's development as a running back has changed under new offensive coordinator Andy Kotelnicki.
The Nittany Lions put up a seven-spot in the sixth inning to pull away with the victory.