Penfield 74, Webster Thomas 46
Margot Hetzke scored 11 of her game-high 30 points during a 19-0 run to start the third quarter for Penfield (15-2).
It was Hetzke's third straight 30-point game. She also grabbed 12 rebounds for the Patriots.
Lucy Covley recorded a double-double with 15 points and 10 assists for Penfield, which has clinched at least a share of the league title.
Penfield will play Rush-Henrietta on Tuesday, with the winner clinching the No. 1 seed in Class AA for sectionals.
Candaisy Crawford scored 21 points and Allie Diehl added eight points for Webster Thomas (7-10).
WEBSTER THOMAS: Kelly Weeks 2, Candaisy Crawford 21, Chloe Miller 2, Mandy Skrypka 2, Kira Ashton 0, Sarah Haes 0, Emma Soanes 0, Allie Diehl 8, Amber Breedy 7, Jessica Boddery 0, Marissa Yokajty 4.
PENFIELD: Sophie Loewenguth 0, Jill Pancio 0, Sandra Catanzaro 0, Emma Guy 14, Margot Hetzke 30, Mary Doyle 4, Lucy Covley 15, Kristen Baumer 8, Alexa Bartosiewicz 0, Makaila Wilson 1, Ali Fitzgerald 2.
3-point goals: Crawford 3, Diehl 2, Breedy; Covley 3.