The win clinched Philadelphia's fifth straight National League East championship. Thanks to a solid starting staff and a team ERA of 3.00, the Phillies will go into the playoffs as the likely favorite to win their second World Series in four years.
Philadelphia needs two more victories to become the first, and perhaps only team this year, to reach 100 wins.
The Phillies were protecting a 3-2 lead heading into the bottom of the eighth, but they piled up six runs in the inning. Shane Victorino and Hunter Pence drove in a run each with singles before Ibanez connected with his 19th homer of the season.
Pence also had an RBI double in the first and Victorino drove in two other runs with a bases-loaded walk in the fourth and a homer in the sixth.
Roy Oswalt (8-9) gave up five hits over seven shutout innings to get the win. He struck out seven. The loss went to Jake Westbrook (12-9), who surrendered two runs on five hits while working only 3 1/3.
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