ST Augustine’s ended up with the bragging rights after stunning neighbours Brookvale 3-0 at Graham Reserve on Saturday afternoon.
Dom Marrocco (2) and Manly United recruit Oscar Casteigt found the back of the net in what was a commanding performance against the Blues.
“The boys produced across the 90 minutes, I’m very happy for them,” Saints coach Anthony Vescio said.
“It was a big day for us (with the staging of the Helen Anglicas Cup) and we played well in front of a big crowd.
“Our belief is growing, you can see the boys enjoy playing for each other.”
Other results saw Pittwater RSL FC also win 3-0 over Curl Curl, Wakehurst outclassed Mosman 2-0, Seaforth did enough to beat CC Strikers 2-1 and Narrabeen and Dee Why played out a 1-1 draw.