USC fell to 0-2 in its all-time series against Boston College. The Trojans fell, 13-10, in a home game in 2014.
The Women of Troy had their program-record seven-game winning streak snapped by the Eagles.
For the first time in 10 games, the Trojans were outdrawn in the center circle by an opponent.
USC kept its turnovers in single digits for the third time this season. The Trojans had eight against the Eagles, and six two previous times: at Marist and vs. California.
Junior midfielder Amanda Johansen scored four goals and had four goals or more for the third time this season. Johansen scored five twice this year (vs. Fresno State, vs. California).
Freshman goalie Gussie Johns produced a career-best eight saves against the Eagles and faced a season-high 30 shots from Boston College. Johns also matched her career-high with five ground balls. She has had five ground balls in two other games this season.