Midfielder Cian Dabrowski scored the decisive overtime goal Sunday to put host Ohio State ahead of No. 4 Northwestern in a hard-fought, 11-10 upset win.
Neither team led by more than one goal in the first half. Northwestern (3-2) twice came back from two-point deficits after the break, the second time on attacker Kara Mupo's goal with 8:56 left that tied the game at 10 and forced overtime.
Attacker Katie Chase (Glenelg) led Ohio State (4-3) with four goals and four draw controls.
No. 6 Duke 14, Virginia Tech 6: Led by attacker Kerrin Maurer's game-high four goals, the visiting Blue Devils (4-3, 1-1 Atlantic Coast Conference) built a 4-1 halftime lead during a six-point run that carried them past the Hokies (3-3, 0-2).
Connecticut 14, No. 20 James Madison 13, 2OT: After the host Huskies (2-4) won the draw control to open the second overtime period, midfielder Lauren Kahn drove downfield and scored the game-winning goal against the Dukes (4-2), who had a man advantage.
Stanford 11, No. 16 Georgetown 10, 2OT: The Hoyas led by as many as six goals in the second half, but the Cardinal rallied, and midfielder Lucy Dikeou scored with 3:46 left in double overtime for the win.
Down 10-4 with 23:49 left in regulation, Stanford (5-1) went on a six-goal run, tying the game at 10 with one second remaining.