Rachael Tedone scored 22 points for Suffield as the Wildcats defeated host 62-44.
Tedone scored 11 points - including three three-pointers - in the third quarter to match every run that Somers made. Suffield led 51-35 going to the final quarter.
Brianna Bishop had 11 in the win.
For Somers, Diandra DeRosa scored 13 points and Kathryn LaVallee added 12.
Somers (2-5) travels to Coventry on Tuesday. Suffield (8-1) travels to Stafford the same day.