Billy Hamilton added a two-run homer for the Reds, who won their second straight against the reeling Phillies after a three-game losing streak.
Bailey (7-3) allowed just six hits and one run with three walks and seven strikeouts while matching his season high in innings and picking up his first career win in five decisions over 10 games against Philadelphia. He threw a season-high 121 pitches, four short of tying his career high.
The Phillies had at least one runner on base in six of those innings, but they couldn't capitalize enough to avoid their eighth loss in nine games.
Aroldis Chapman struck out the side in the ninth for his ninth save.
This material may not be published, broadcast, rewritten, or redistributed.