The Chicago Cubs Magic Number is derived by the following equation: Total Number of Games + 1 - Wins by the Cubs - Losses by Best Opponent.
The Magic Number is affected by one of two events, a Cubs win or the best opponent losing. The number is 163 at the beginning of the season. When the number hits 0, the Cubs have clinched the NL Central and are in the PLAYOFFS!
This site represents the Magic Number for clinching the National League Central Division. If the Wild Card becomes relevant for getting into the postseason, this site may contain both. In that case, the Wild Card number will clearly be denoted.
Shoot an email to firstname.lastname@example.org with comments and suggestions. Also, drop a Cubs-themed photo with a story. It may be posted during future number updates.