The Brampton Battalion's six-game winning streak was snapped by the last team they'd want to lose points to.
Steven Beyers scored once in regulation and then had the shoot-out winner as the Barrie Colts beat division rival Brampton 4-3 in Ontario Hockey League action Thursday.
Colin Behenna had a goal and two assists for Barrie (20-13-3) while Alex Lepkowski scored the other.
Sam Carrick had two goals and an assist for Brampton (20-11-4) and Ian Watters added a goal and an assist.
Mathias Niederberger made his first start since returning from representing Germany at the division one world junior championships ? one tier below the world junior hockey championships currently taking place in Alberta ? where he was named the tournament's top goaltender. He turned aside 24 shots for the win while Matej Machovsky made 24 saves in a losing cause.
Barrie and Brampton both went 1 for 6 on the power play.
The victory moves the Colts within two points of the Battalion for top spot in the Central Division.
Elsewhere in the OHL, it was: Belleville 6, Sault Ste. Marie 5; Kitchener 3, Windsor 2; and Peterborough 5, Erie 2.
At Barrie, Ont., the Battalion jumped out to a 2-0 first period lead with goals from Watters and Carrick.
Beyers cut the lead in half with a power-play goal with just 18 seconds remaining in the period, making it a 2-1 game heading into the second.
Lepkowski tied the game for Barrie 2:24 into the middle period and at 18:47 they took their first lead when Behenna scored.
Carrick scored on the power play at 3:04 of the third to tie the game 3-3 heading into extra time.
Bulls 6 Greyhounds 5
At Sault Ste. Marie, Ont., Michael Curtis and Adam Payerl each had a goal and two assists as Belleville (21-13-0) defeated the Greyhounds (18-16-4).
Rangers 3 Spitfires 2
At Windsor, Ont., Michael Catenacci scored the winning goal early in the third period as Kitchener (23-10-1) handed the Spitfires (17-18-4) their fourth loss in a row.
Petes 5 Otters 2
At Peterborough, Ont., Andrew Yogan scored a pair of goals as the Petes (16-13-6) downed Erie (5-29-2).