Ryan Howard hit a two-run homer and drove 3 victory over the Nationals on Saturday.

Oswalt (5-7) gave up three runs and six hits, striking out five in his second start back since a lengthy stint on the disabled list with a back injury. It was his first win since June 12.

Michael Stutes followed him with two scoreless innings of relief for the Phillies, who bounced back from a loss in the opener of this three-game series on Friday to improve to 13-2 in their last 15 games.

John Lannan (8-8) returned to being ineffective against the Phillies, taking the loss after giving up seven runs -- only one earned -- on four hits and five walks in just three innings.

The left-hander had beaten the Phillies on June 1, his first win over the team in 14 previous tries.