Ruf's leadoff blast against David Carpenter (3-1) broke a 2-2 tie and the Phillies held on to sweep a series for the first time since taking four straight from Miami in June.
B.J. Rosenberg recorded his first career save after starter Cole Hamels (7-13) had yielded two runs on two hits over eight innings, striking out nine.
Rookie Evan Gattis socked a pair of solo homers to provide the offense for the National League East-leading Braves.
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