At Bucksport, Jordan Merchant and Taylor Davis connected for 17 points each to carry the Tigers to victory.
Savana Turner and Jessica West added eight points each for Sumner of East Sullivan.
Deb Wight scored 15 points and Bri Bires provided 13 for Bucksport. Alana Davis grabbed 13 rebounds with three assists and three steals.
Savana Turner 4-0-8, Kiandra Barnes, Ali Coelho 2-1-5, Genesis DiCarlo 2-0-4, Jessica West 3-1-8, Taya Moore 0-1-1, Jordan Merchant 7-3-17, Taylor Davis 7-3-17
Deb Wight 3-7-15, Alanna Davis 1-4-6, Bri Bires 4-4-13, Kacie Hurd 2-4, Jen Pye 1-2, Sam Boothby, Anna Boyle, Taylor Staples, Kim Nason