ATLANTA -- Alec Bohm put Philadelphia ahead with a two-out home run in the 10th inning, and the Phillies beat the Atlanta Braves 4-3 on Wednesday to force a decisive third game in their National League Wild Card Series.
The Phillies rallied with back-to-back homers from Kyle Schwarber and Bryce Harper after trailing 3-1 in the seventh. Harper's homer made up for a crucial fielding mistake an inning earlier.
Andrew Painter (1-0), a starter in the regular season, saved the Phillies' beleaguered bullpen with three scoreless innings to close things out. Painter stranded two runners in the 10th when he struck out Dominic Smith with a successful automated ball-strike system challenge.
Playing under traditional extra-inning rules that don't include designated runners at second base like in the regular season, Bohm delivered his third career postseason home run on a 357-foot opposite-field shot to right field off right-hander Didier Fuentes (0-1).
It was the fourth postseason homer by a Phillies player in the 10th inning or later in franchise history, according to ESPN Research.
For Bohm, who has faced criticism during a rocky season in which he hit .249 and is facing free agency, the long ball might have extended his time with the Phillies.
"I've been trying not to think about that," Bohm said. "I really don't want the season to end."
The Phillies will try to continue their postseason dominance over the Braves in Thursday's Game 3. Philadelphia beat Atlanta in the 1993 NL Championship Series and the 2022 and 2023 NL Division Series.
In the seventh, Drake Baldwin's double glanced off Harper's glove in right field, driving in Sean Murphy to give Atlanta a 2-1 lead in the seventh. Matt Olson added a sacrifice fly for a 3-1 lead.
Harper, a first baseman before moving to the outfield at the trade deadline, was playing shallow and was late to adjust to Baldwin's drive with runners on first and second. Harper reached up only to have the ball bounce off his glove for a double.
"Probably should have been caught, obviously," Harper said. "But how quickly can I turn the page and just get past that moment, knowing that I'm still coming up to the plate to hit. And knowing that in the postseason, it doesn't matter what you did the at-bat before, the inning before. It's what you do in that moment."
The Phillies pulled even with eighth-inning home runs by Schwarber and Harper off Dylan Lee, the winning pitcher in the Braves' 5-3 decision in the opener on Tuesday. Schwarber's drive carried 447 feet, and Harper followed with a 418-foot shot.
The Phillies became the sixth team in MLB history to hit three or more home runs in the eighth inning or later of a playoff game, according to ESPN Research.
"Some big home runs late by some really good hitters," Braves manager Walt Weiss said. "That's what got us."
Tyler Mahle allowed one run on six hits in seven innings for Atlanta. Cristopher Sanchez allowed three runs in 6 2/3 innings for Philadelphia while throwing a career-high 116 pitches.
Painter gave up a one-out single to Mauricio Dubon in the 10th, then struck out Austin Riley before giving up a bloop single to Michael Harris II. Painter's 0-2 fastball to Smith was called inside by plate umpire Adam Beck, but Painter and catcher J.T. Realmuto immediately called for a robo-ump challenge. ABS confirmed the ball clipped the strike zone, the first time a postseason game has ended with a strike-zone appeal.
The three scoreless innings by Painter, who allowed six runs in 10 innings as a reliever this season, was the longest scoreless appearance by a Phillies rookie in a postseason game in franchise history.
Ronald Acuna Jr. walked, stole second and then stole third with Edmundo Sosa not covering the bag before scoring on Olson's single in the first.
Sánchez didn't allow another hit until Sean Murphy doubled to center field with one out in the fifth.
Mahle kept pace, though he didn't have a perfect inning until the fifth, when he struck out Schwarber and Harper. Sánchez issued an intentional walk to Acuña with two outs before Baldwin's grounder to second base ended the inning.
Sosa left the game after reaching on an infield single to open the ninth. Sosa appeared to aggravate a leg injury and was replaced by pinch-runner Derek Hill.
ESPN Research and The Associated Press contributed to this report.