The London Majors are now down 3-2 in their best-of-seven semifinal series with the Kitchener Panthers after a 12-2 loss in Game 5 Thursday night.
For Majors' pitcher Oscar Perez, it was his first loss in the series. He allowed nine runs on ten hits, walked two and struck out one.
London's Cleveland Brownlee had one home run, a single and two RBIs, while centre-fielder Chris McQueen singled twice.
Game 6 is tonight in London at 7:35pm.