Matt Olson set the franchise single-season RBI record as the Atlanta Braves beat the visiting Chicago Cubs 5-3 on Thursday to sweep a three-game series and clinch home-field advantage throughout the playoffs.

The loss knocked Chicago (82-77) a half-game game behind Miami (82-76) in the race for the final National League wild card. The Marlins' game against the New York Mets on Thursday was suspended due to rain. Atlanta (103-56) finished the season 4-2 against the Cubs.

Olson socked his 54th home run, a two-run shot in the first inning, raising his major-league-leading RBI total to 136. Hall of Famer Eddie Mathews' 135 RBIs in 1953 had been the club's top single-season mark since RBIs became an official statistic in 1920.

Atlanta starter AJ Smith-Shawver, who was working on a limited pitch count, did not allow a hit in 3 2/3 innings. The rookie gave up one run on one walk and two strikeouts in his first major league appearance since July 30.

The winning pitcher was Kyle Wright (1-3), who fanned four and allowed one run in 2 1/3 innings. Raisel Iglesias pitched a 1-2-3 ninth to earn his 32nd save.

Chicago starter Marcus Stroman (10-9) lasted just two innings and took the loss. He gave up four runs, two earned, on four hits and no walks with two strikeouts.

The Cubs got a run in the first inning when Mike Tauchman walked, stole second, moved to third on a grounder and scored on Ian Happ's RBI fielder's choice.

The Braves took the lead in the bottom of the first on Olson's homer, then tacked on two runs in the second on an RBI double by Michael Harris II and a run-scoring single by Ronald Acuna Jr.

Atlanta made it 5-1 in the third. Austin Riley, who went 3-for-4, tripled and raced home when pitcher Javier Assad mishandled Eddie Rosario's comebacker.

Seiya Suzuki got the Cubs closer with an RBI double in the sixth, then a run-scoring single in the eighth that cut the deficit to two runs.

--Field Level Media