SHADYSIDE - Rosecrans scored 14 of the game's final 16 points and handed Shadyside an overtime setback.
The Tigers (2-1) led 47-38 with under three minutes to play in regulation.
Alexis Kirkbridge paced the Bishops with 14 points, while Molly Nash and Maddie Chandler both added 10 points.
Hayley Holenka led all scorers with 20 points for Shadyside. Karli Bonar added 10 points.