The postseason began on September 30, 1997, and ended on October 26, 1997, with the Marlins defeating the Indians in seven games in the 1997 World Series.
Jeff Fassero pitched eight innings of shutout baseball and the Seattle bullpen stopped a late rally by the Orioles to give the Mariners the win in Game 3.
Game 4 was a pitchers’ duel between Mussina and Randy Johnson, which would be won by the former as the Orioles narrowly prevailed to close out the series.
The Mariners would return to the postseason in 2000, defeating the Chicago White Sox in the ALDS before falling to the New York Yankees in the ALCS.
The Indians knocked out the defending World Series champion Yankees in five games to return to the ALCS for the second time in three years.
Game 1 was an offensive shootout between both teams, which would be won by the Yankees as Derek Jeter, Tim Raines, Tino Martinez, and Paul O'Neill all hit home runs.
Game 2 was a back-and-forth shootout between both teams, which was won by the Marlins on yet another walk-off RBI single from Moisés Alou.
Tom Glavine pitched six solid innings in Game 2 as the Braves blew out the Astros to take a 2–0 series lead headed to the Astrodome.
Game 6 remained scoreless after ten innings of play until Cleveland's Tony Fernández hit a solo home run to put the Indians in the lead for good, effectively securing the pennant.
This would be the last time the Indians won the AL pennant until 2016, where they defeated the Toronto Blue Jays in six games before falling in the World Series.
The Marlins defeated the two-time defending National League champion Braves to advance to their first World Series in franchise history, becoming the first team from Florida to accomplish such a feat.
Game 5 was marred by controversy as Florida's Liván Hernández was given an unusually wide strike zone by umpire Eric Gregg.
Hernández ended up pitching a complete game, striking out 15 batters, allowing only three runs and one hit as the Marlins won 2–1 to go up 3–2 in the series headed back to Atlanta.
In a cold and snowy Game 4, the Indians blew out the Marlins thanks to solid pitching performances from Jaret Wright and closer Brian Anderson to even the series at two.
Game 4's official gametime temperature of 35 °F (3.3 °C) still stands as the coldest in World Series history, with media outlets reporting wind chill readings as low as 18 °F (−7.8 °C).
The game went scoreless throughout the tenth, and then in the eleventh inning, the series was capped off by Edgar Rentería hitting a hard line drive back up the middle of the infield.
The ball hit off Charles Nagy’s glove and rolled into center field, scoring Craig Counsell and winning the series for the Marlins.