The Navy women stunned the college lacrosse world Saturday afternoon with a 16-14 road upset of defending national champion North Carolina in the NCAA tournament quarterfinals. The unseeded Midshipmen advanced to the first Final Four in program history and will face Boston College in a national semifinal Friday at 7:30 p.m. Eastern time in Foxborough, Mass.

Top-seeded Maryland also advanced to the Final Four with a 13-12 win over eighth-seeded Stony Brook. Taylor Hensh scored the game-winner with 2:14 left as the Terrapins earned their ninth straight national semifinal appearance. Maryland will face either fourth-seeded Penn State or fifth-seeded Princeton on Friday at 5 p.m. Eastern.

Seeded second and winner of two of the previous four national titles, North Carolina (17-3) was 21-2 all time at home in NCAA tournament play, but Navy’s Meg O’Donnell scored her third goal of the game with 6:10 left to break a 14-all tie. Molly O’Sullivan then gave the Mids (18-4) an open-net insurance goal with 15.9 seconds remaining to finish the scoring.

Midshipmen Coach Cindy Timchal advances to the Final Four for the first time since 2003, when she made the last of her 12 national semifinal appearances as head coach at Maryland. She won eight national titles at Maryland, including seven in a row from 1995 to 2001.