WPA is win probability added. Every plate appearance changes the chance the batting team will win (up or down) based on the historical record. This Win Expectancy Finder can give you an idea of how it works.
For example, if the game is tied and the home team is batting in the bottom of the 5th inning with no outs and no one on base, they have a 59.07% chance of winning (that is, the home team won 59.07% of all games from the historical period that had that exact situation).
If the leadoff man hits a HR, their chance of winning goes up to 74.41%. The batter would get a .1534 WPA for that event since .7441 - .5907 = .1534.
Using Stathead, I did the following search in the Game Finder function: "For single games, from 1950 to 1982, requiring Win Probability Added for Offensive Player >= -5, sorted by descending Win Probability Added for Offensive Player." (I did not have to go that low since the lowest ended up -0.32). There is an option to look at only All-Star games.
So each player has a line in the search for their WPA (from all their PAs) in a given game. Then I used the subtotal function to sum the total WPA from all the All-Star games for each player. The table below has the top 20 for the AL.
|
Player AL |
Total WPA |
|
Al Kaline |
0.902 |
|
Nellie Fox |
0.620 |
|
Cookie Rojas |
0.537 |
|
Brooks Robinson |
0.536 |
|
Carl Yastrzemski |
0.476 |
|
Al Rosen |
0.408 |
|
Gus Triandos |
0.362 |
|
Fred Lynn |
0.361 |
|
Harmon Killebrew |
0.315 |
|
Larry Doby |
0.293 |
|
Rocky Colavito |
0.293 |
|
Ferris Fain |
0.220 |
|
Bobby Avila |
0.213 |
|
Darrell Porter |
0.212 |
|
Rickey Henderson |
0.171 |
|
Gil McDougald |
0.167 |
|
Ken McBride |
0.136 |
|
Pete Runnels |
0.136 |
|
Thurman Munson |
0.123 |
|
Eddie Robinson |
0.120 |
Now the NL top 20.
|
Player NL |
Total WPA |
|
Willie Mays |
1.219 |
|
Steve Garvey |
0.857 |
|
Gus Bell |
0.778 |
|
Mike Schmidt |
0.628 |
|
Lee Mazzilli |
0.550 |
|
Henry Aaron |
0.476 |
|
Joe Morgan |
0.417 |
|
Johnny Callison |
0.386 |
|
Gary Carter |
0.362 |
|
Stan Musial |
0.348 |
|
Enos Slaughter |
0.325 |
|
Manny Sanguillén |
0.313 |
|
Ralph Kiner |
0.311 |
|
Ted Kluszewski |
0.296 |
|
George Foster |
0.295 |
|
Johnny Bench |
0.295 |
|
Dick Groat |
0.269 |
|
Tim McCarver |
0.264 |
|
Jim Wynn |
0.262 |
|
Jim Hickman |
0.253 |
Now the top 40 of the two leagues combined
|
Player |
Toptal WPA |
League |
|
Willie Mays |
1.219 |
NL |
|
Al Kaline |
0.902 |
AL |
|
Steve Garvey |
0.857 |
NL |
|
Gus Bell |
0.778 |
NL |
|
Mike Schmidt |
0.628 |
NL |
|
Nellie Fox |
0.620 |
AL |
|
Lee Mazzilli |
0.550 |
NL |
|
Cookie Rojas |
0.537 |
AL |
|
Brooks Robinson |
0.536 |
AL |
|
Henry Aaron |
0.476 |
NL |
|
Carl Yastrzemski |
0.476 |
AL |
|
Joe Morgan |
0.417 |
NL |
|
Al Rosen |
0.408 |
AL |
|
Johnny Callison |
0.386 |
NL |
|
Gary Carter |
0.362 |
NL |
|
Gus Triandos |
0.362 |
AL |
|
Fred Lynn |
0.361 |
AL |
|
Stan Musial |
0.348 |
NL |
|
Enos Slaughter |
0.325 |
NL |
|
Harmon Killebrew |
0.315 |
AL |
|
Manny Sanguillén |
0.313 |
NL |
|
Ralph Kiner |
0.311 |
NL |
|
Ted Kluszewski |
0.296 |
NL |
|
George Foster |
0.295 |
NL |
|
Johnny Bench |
0.295 |
NL |
|
Larry Doby |
0.293 |
AL |
|
Rocky Colavito |
0.293 |
AL |
|
Dick Groat |
0.269 |
NL |
|
Tim McCarver |
0.264 |
NL |
|
Jim Wynn |
0.262 |
NL |
|
Jim Hickman |
0.253 |
NL |
|
Richie Ashburn |
0.248 |
NL |
|
Dave Concepción |
0.246 |
NL |
|
Ferris Fain |
0.220 |
AL |
|
Bill White |
0.214 |
NL |
|
George Hendrick |
0.213 |
NL |
|
Bobby Avila |
0.213 |
AL |
|
Darrell Porter |
0.212 |
AL |
|
Tony Pérez |
0.209 |
NL |
|
Maury Wills |
0.201 |
NL |
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