UMBC 10, Monmouth 8: Matt Gregoire (South River) scored two of his game-high four goals in the fourth quarter to lead the host Retrievers (1-1) past the Hawks (0-1).
UMBC ended the game with a 3-1 run.
Bucknell 9, Navy 6: The Midshipmen (1-2, 0-1 Patriot League) opened with a 2-0 lead, but the Bison (2-1, 1-0) answered with a 4-0 run in the second quarter and Navy never recovered.
Delaware 15, Mount St. Mary's 5: The Mount (0-3) was held scoreless in the first half, and the Blue Hens (2-0) opened the second half with a 6-2 run.
Rochester Institute of Technology 15, Stevenson 14, OT: Taylor Wiseman scored the game-winner with 1:43 left in overtime as the Tigers (1-0) beat the Mustangs (1-1) in Syracuse, N.Y., in a rematch of the 2013 national title game.
Georgetown is the highest-ranked opponent the Tigers have beaten since since defeating No. 9 James Madison in 2011.
UMBC 11, American 10, 3OT: Freshman Mackenzie Reese (John Carroll) scored off a feed from Rachel Benzing (Centennial) with 13 seconds left in the third overtime to lift the host Retrievers (1-2) over the Eagles (1-2).
Abby Wilson (Fallston) scored her fourth goal with 3:11 left to force overtime.
Lehigh 10, Mount St. Mary's 4: Erin Seipp (Notre Dame Prep) had two goals for the Mount (0-2), but the host Mountain Hawks (1-0) used a 10-2 run to win.
Salisbury 9, Stevenson 6: Shannon Carter and Shelby Nemecek each had a hat trick, and the Sea Gulls (2-0) beat the host Mustangs (0-2) for their 25th straight win.