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How Many Games Does it Take to Win the World Series of Major League Baseball?

Ryohei Miyadera
Organization: Kwansei Gakuin High School
Department: Mathematics Department
Taishi Kim
Maki Takeda
Takashi Ikeda
Tomoaki Shintani
Revision date


The World Series of Major League Baseball (MLB) consists of seven games. If a team wins four out of the seven games, the team becomes the World Champion. If a team has already won four, the rest of the game will be cancelled. Some people believe that the World Series of MLB has been fought between almost evenly matched teams. By comparing the statistics of World Series of MLB and Mathematica simulation we can prove that this belief is false. The Japan Series has the same kind of system to choose the champion, and the statistics of it shows that it has been fought between almost evenly matched teams. The contrast between the statistics of the World Series and the Japan Series is very interesting. We are the first people who found this fact. We presented our idea at the International Mathematica Symposium on July 8 in 2003. See R. Miyadera, K. Miyabe, D. Kitajima, N. Fujii and K. Fujii, How High School Students Could Present Original Math Research Using Mathematica, IMS, 2003

*Mathematics > Probability and Statistics

The World Series of MLB, baseball, Probability distribution
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