Power/speed number

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Bill James invented the Power/Speed Number, a single figure to quantify the idea expressed in the "40-40 club" or the "30-30 club" and other combinations of stolen bases and home runs.

The formula is 2(HR x SB)/(HR + SB). James himself has referred to this as a "freakshow" stat with little analytical value.


All Time Leaders
Span Player Total Notes
Career Barry Bonds 603.17
Season Alex Rodriguez 43.91 1998

See also[edit]

Further Reading[edit]

  • Andrew Simon: "The best power-speed combo seasons ever", mlb.com, August 21, 2024. [1]

Related Sites[edit]