At Houlton, Emma Peterson and Victoria Holmes each had two doubles to lead the Shires to the win.
Tanika Toby also had two hits for the winners.
For Caribou, Morgan Outing had two doubles and Rachel Soucy and Katie Pelletier each had one double.
Caribou 101 13 6-5-2
Houlton 202 3(11) 18-8-2