St. Joseph’s Nicole Williams pitched a perfect game, striking out 14 of the 15 batters she faced, when the Cadets defeated Brien McMahon, 13-0, in Norwalk on Friday.

Elena Ball had two hits and three RBIs.

Lauren Blose had two hits and drove in two runs.

St. Joseph is 10-1 overall and 8-0 in the FCIAC.

McMahon is 0-11.