South Oakland of the North Side shutout the South Side Eagles 3-0, Wednesday night at SpringView Field.
Mike Fletcher pitched six scoreless innings allowing 1 hit, and striking out 11.
James Fago pitched a perfect seventh for the save.
Nick Berdine and Brendan Scioscia combined to play an error-free game at second base.
The Eagles recorded their only hit in the top of the first with a lead off single.
The Ducks improve to 13-4, and resume division play Saturday morning against the Express.
Duffy, Smith and Gwin had RBI for the Ducks.