The Eagles had to stop three corners in the final moments of the game, including two after time expired. All told, Spalding took 12 corners to McDonogh's six.
"We had opportunities. We had a lot of corners, but just couldn't get the ball in the cage," Cavaliers coach Leslee Brady said. "We got two, but it would've taken three."
Spalding (14-3) built a 2-1 lead just 1:38 into the second half when midfielder Erin Shanahan wound up and fired a hard shot from the top of the circle into the back of the cage. Midway through the half, McDonogh's D'Arcy Carlson tied it by putting in a rebound off goalie Megan Nemecek.