Penn State (2-1) increased its 5-3 halftime lead to four with early third-quarter scores from Shane Sturgis and TJ Sanders. Sturgis had five goals and one assist, while Sanders had two goals and an assist. The Nittany Lions never trailed.
Notre Dame's surge began when Fighting Irish goalie Conor Kelly made a save and found Tyler Brenneman, who streaked down the field and fed Matt Kavanagh for his second of three goals in the game.
Unassisted goals from attackmen Conor Doyle (Gilman) and Westy Hopkins 32 seconds apart had the Fighting Irish within 7-6 at the 6:30 mark of the third quarter.
No. 3 North Carolina 18, Dartmouth 5: Joey Sankey matched his career high with seven points (three goals, four assists) as the host Tar Heels (3-0) beat the Big Green (0-1). North Carolina led 8-1 at the break.
Kavanagh, a senior, made the most of his first start, making seven saves in the second quarter.
Drexel 14, No. 7 Albany 13: The host Dragons (1-1) used a 6-4 run in the fourth quarter to win. The Great Danes (0-2) lost their second straight one-goal game.
No. 8 Yale 10, No. 9 St. John's 6: Michael Bonacci (St. Mary's) and Brandon Mangan each scored two goals to lead the host Bulldogs (1-0) past the Red Storm (1-1).
Yale broke a 2-all first-quarter tie by outscoring St. John's 7-3 over the next two quarters.
No. 16 Lehigh 10, Boston University 7: Patrick Corbett and Reid Weber each scored twice to lead the Mountain Hawks (4-0, 1-0 Patriot League) past the Terriers (0-3, 0-1).
No. 20 Bryant 7, Hartford 5: Two-goal performances from Kevin O'Shea and Ty Schuldt weren't enough as the host Hawks (1-1) fell to the Bulldogs (2-1).
North Carolina got strong offense from freshman Sydney Holman (six assists) and seniors Abbey Friend (six goals) and Taylor George (Broadneck, five goals).
The Tar Heels scored nine of the first 10 second-half goals.
No. 4 Northwestern 12, No. 6 Duke 11: In a game in which neither team led by more than a goal until nearly two-thirds of the way through, the Wildcats (2-0) went on a 4-0 run midway through the second half and held on to beat the Blue Devils (3-1).
Northwestern has won 11 straight against Duke dating to 2006.
Kaleigh Craig led Northwestern with a career-best four goals. Sydney Peterson (Notre Dame Prep) led Duke with a hat trick.
Covie Stanwick (Notre Dame Prep) scored six goals for Boston College.
No. 15 Notre Dame 8, No. 14 Stony Brook 7: Cortney Fortunato had four goals and the host Irish (2-1) withstood a late 3-0 run by the Seawolves (0-1).
Fortunato's fourth goal put Notre Dame up 8-4 lead with 20:55 left in the game.
No. 18 Stanford 14, Harvard 10: The Crimson (0-1) scored seven goals in the second half but fell to the Cardinal (2-0).
Alexis Nicolia and freshman Maria Romeo each had a hat trick.