Aidan Dudas scored in the shoot out and both of the Attack's regulation goals to give Owen Sound a 3-2 win over Niagara.
Nick Suzuki also scored in the shoot out and assisted on Dudas second goal of the game at 7:36 of the second period.
Dudas first goal was on the power play just 63 seconds into the game assisted by Jonah Gadjovich and Brady Lyle.
The Attack were leading 2-0 after the second period but Kirill Maksimov and Liam Ham scored in the first six minutes of the third to force extra time.
Owen Sound out shot Niagara 42-21.
The Ice Dog's Stephen Dhillon earned second star honours for keeping his team in the game.
The Attack are still second in the Midwest, four points back of the Kitchener Rangers.
Sarnia 4 London 1
Cliff Pu was the lone scorer for London as the Knights lost 4-1 to Sarnia. Pu's goal came early in the first period at 3:26.
Hugo Leufvenius had a hat trick for the Sting. Sean Josling scored and set up one of Leufvenius' goals.