The Cubs led 4-1 before Atlanta scored two runs in the ninth off closer Wade Davis and loaded the bases with two outs.
Davis allowed one-out singles to Brandon Phillips and Freddie Freeman before Phillips scored from third on a wild pitch. Matt Kemp followed with a run-scoring single before pinch-runner Lane Adams stole second and moved to third on Tyler Flowers' fly ball to the warning track in center field.
Following an intentional walk to pinch-hitter Matt Adams, pinch-runner Dansby Swanson stole second, leaving runners on second and third. Davis walked Sean Rodriguez, playing in his first game of the season, to load the bases.
Johan Camargo's fly ball to shallow left ended the game, giving Davis his 18th consecutive save this season.
