The Spartans squeezed the Seahawks 15-2 in girls varsity water polo last week at the Bainbridge Aquatic Center.
Bainbridge dominated on both ends of the pool against Peninsula in the one-sided matchup April 10.
Five players scored for Bainbridge in the Spartan victory.
Grace Carson led the way with eight goals for BHS. Lila Schroer added three of her own, while Kristina DuPont contributed two. Frances Weller and Maja Carroll added one goal each.