ATLANTA — The Atlanta Braves capped a most surprising season by clinching their first National League East crown since 2013, with Mike Foltynewicz taking a no-hitter into the seventh inning Saturday in a 5-3 win over the Philadelphia Phillies.

A year after the team went 70-92, Manager Brian Snitker and his Baby Braves surged back into the playoffs. A loud crowd at SunTrust Park joined the party when the rookie Ronald Acuna Jr. caught a fly ball for the final out, setting off a celebration.

The Braves will make their first postseason appearance since their last division title on Oct. 4 in the N.L. division series.

“You could tell after the first week of workouts that we had the talent to do something special,” the All-Star first baseman Freddie Freeman said. “Obviously we still needed to put it together. But this is what happens. You win the division after three straight 90-loss seasons.”