The 2007 Chicago Cubs season was the 136th season of the Chicago Cubs franchise, the 132nd in the National League and the 92nd at Wrigley Field. The Cubs, trying to rebound after a season in which they finished last in their division for the first time since 2000, finished first in the National League Central with a record of 85–77. They were swept three games to none by the Arizona Diamondbacks in the NLDS.

The 2007 Los Angeles Dodgers season was the 119th for the franchise in Major League Baseball, and their 50th season in Los Angeles, California. It started off promisingly with the Dodgers holding the National League West lead for most of the first half of the season. However, the team faded down the stretch and finished the season in fourth place. Two of the teams big free agent signings, pitchers Jason Schmidt and Randy Wolf were injured and missed most of the season. A promising development was the play of several rookies including James Loney and Matt Kemp and the further development of second year catcher Russell Martin, who was named to his first All-Star Game.