Foltynewicz (3-1) allowed one run in his longest start in the majors. He struck out seven.
Jason Grilli struck out three in the ninth for his 13th save.
Jimmy Nelson (2-5) matched Foltynewicz through five scoreless innings before allowing two runs on two walks and two hits, including Andrelton Simmons' RBI single, in the sixth.
The Braves (22-21) won three of four in the series to move over .500 for the first time since April 27.
