The visiting Essex 73’s scored three times in the first period, including twice on the power play and went on to beat the Flags, 5-1 Saturday night in Mooretown.
Petrolia’s Ethan Kerby had the lone goal for the Flags.
John Chartrand made 33 saves as the 73’s outshot Mooretown, 38-36.
The Flags were 0-for-10 with the man advantage.
Mooretown is home to Lakeshore on Wednesday night at 7:30.