Rangers' winger Adam Mascherin had a hat trick but it wasn't enough as Kitchener lost 8-5 to Windsor.
Aaron Luchuk had a hat trick for the Spitfires. Luke Boka struck twice for Windsor.
Kitchener also got goals from Cole Carter and Adam Liška.
The Spitfires jumped out to a three goal lead less than half way through the opening period chasing Luke Richardson from the Rangers' net. Richardson allowed three goals on eight shots.
Chris McGonigle hadn't been in net a minute to relieve Richardson when he allowed Boka to score and the Spitfires were up 4-0. Mascherin and Carter put the Rangers on the board to end the period.
Mascherin got the Rangers to within a point of Windsor at 7:13 of the second but Luchuk answered just over a minute later to widen the gap. Liška scored on the power play 23 seconds after Luchuk to narrow the Rangers deficit again but Boka answered for the Windsor, a goal would stand as the game winner. Mascherin scored his third of the game on the power play to end the period.
Luchuk gave the Spitfires some insurance midway through the third with the man advantage and Daniel D'Amico scored at 12:38 to cap off the Spitfires offense.
McGoningle allowed 5 goals on 29 shots in the end. Michael DiPietro stopped 38 shots for the Spitfires.