National League Central

Record vs. opponents

Game 1 – Chicago 4, Atlanta 2

Game 2 – Atlanta 5, Chicago 3

Game 3 – Chicago 3, Atlanta 1

Game 4 – Atlanta 6, Chicago 4

Game 5 – Chicago 5, Atlanta 1

For the first time since October 14. 1908, the Cubs had won a postseason series, doing so at Turner Field in Atlanta.

Game 1

October 7: Wrigley Field, Chicago

Game 2

October 8: Wrigley Field, Chicago

Game 3

October 10: Pro Player Stadium, Miami, Florida

Game 4

October 11: Pro Player Stadium, Miami

Game 5

October 12: Pro Player Stadium, Miami

With the Marlins facing elimination, Josh Beckett kept them alive by dominating the Cubs, holding them to just two hits and one walk as part of his standout 2003 postseason. The game was scoreless until the sixth inning when Mike Lowell hit a two-run homer. Iván Rodríguez and Jeff Conine homered in the seventh and eighth innings respectively. Even with the loss, the Cubs looked good going back home with their two aces, Mark Prior and Kerry Wood ready to start Games 6 and 7.

Game 6

October 14: Wrigley Field, Chicago, Illinois

The Cubs held a 3–0 lead going into the top of the eighth inning in Game 6 and, after Mike Mordecai hit a high pop fly to left field for the first out of the inning, had only two outs left in the inning—leaving the team a mere 5 outs away from their first World Series berth since 1945.

Prior had retired the last eight hitters and had allowed only three hits up to that point. Center fielder Juan Pierre (who was later traded to the Cubs) then hit a double off Prior.

On the eighth pitch of his at bat, Luis Castillo hit a high foul ball toward the left field wall. Cubs left fielder Moisés Alou headed toward the stands to catch the ball for the potential second out. As Alou reached for the ball, Cubs fan Steve Bartman, along with others near the area, did the same. The ball bounced off Bartman's hand and into the stands. Though the Cubs pleaded for a call of fan interference, the umpire ruled that the ball had left the field of play and was therefore up for grabs. Alou initially said that he would not have made the catch, though he later denied making the statement, saying that if he had, it was only to make Bartman feel better.^[11]

As a result, Castillo remained an active batter at home plate. On the next pitch, Prior walked Castillo on a wild pitch that got away from catcher Paul Bako, also allowing Pierre to advance to third base.

Next, Iván Rodríguez hit an 0-2 pitch hard into left field, singling and scoring Pierre. Miguel Cabrera then hit a ground ball toward Cubs shortstop Alex Gonzalez that could have ended the inning on a double play. Gonzalez, who led all NL shortstops in fielding percentage, closed his glove a little too early and the ball landed in the dirt, allowing Cabrera to get on base, loading the bases. On the next pitch, Derrek Lee (a future Cubs' All-Star) drilled a double into left field, scoring Castillo and Rodríguez to tie the game at 3-3.

Prior was then taken out of the game and replaced by Kyle Farnsworth, who intentionally walked Mike Lowell to load the bases. Jeff Conine then hit a sacrifice fly to right field for the second out of the inning, allowing Cabrera to score from third and the other runners to each advance one base. This gave the Marlins their first lead of the night. Farnsworth intentionally walked Todd Hollandsworth (another future Cub) to once again load the bases.

The Marlins now having batted around the order, Farnsworth faced Mike Mordecai, who was looking to make up for his earlier out. This time, Mordecai prevailed, hitting a bases-clearing double to left-center field, allowing Lee, Lowell and Hollandsworth to score and making it a 7-3 Marlins lead.

Farnsworth was then taken out of the game and replaced by Mike Remlinger, who gave up a single to Pierre to score Mordecai from second base. Finally, Luis Castillo hit a high pop fly ball to shallow right field for the third out.

The Marlins' lead held, forcing a final Game 7.

Game 7

October 15: Wrigley Field, Chicago, Illinois

The Marlins got off to a quick 3–0 lead in the first inning against Cubs pitching ace Kerry Wood, who hadn't lost at Wrigley Field in nearly six weeks. The Cubs responded by tying the ball game 3–3 in the second inning, which featured a two-run home run by Wood. Moisés Alou's two-run home run the following inning put Chicago up 5–3, but the lead wouldn't last. In the fifth inning, Florida capitalized on a pair of walks and scored three runs to go on top 6–5, a lead they would not relinquish. The Marlins added a run in the sixth and two more in the seventh to expand their lead to 9–5. Cubs pinch-hitter Troy O'Leary hit a home run the bottom of the seventh, making the score 9–6. After the Cubs were retired in order in the eighth inning, Florida closer Ugueth Urbina hit Aramis Ramírez with a pitch to lead off the ninth inning and proceeded to retire the following three batters, giving the Marlins their second National League pennant in their eleven-year existence.