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Manager Wins At Replacement (mWAR) – The Complete Yankees History

by Paul Semendinger

June 13, 2021

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Yes, I just invented this new statistic:

mWAR.

It’s really mW%AR, but that just looks funny.

So it’s mWAR.

This stat is “Manager’s Winning Percentage at the time of his Replacement.” (mWAR)

The following is the winning percentage of every single manager in the history of the Yankees in the season his tenure with the club came to an end. If the manager was replaced after a season, this shows the winning percentage of the manager’s final season.

Yankees Managers’ mWAR

(The Manager’s Winning Percentage at Replacement)

Clark Griffith (1908) – .429 (24-32) – in season

Kid Elberfeld (1908) – .276 (27-71)

George Stallings (1910) – .569 (78-59) – in season

Hal Chase (1911) – .500 (76-76)

Harry Wolverton (1912) – .329 (50-102)

Frank Chance (1914) – .448 (60-74) – in season

Roger Peckinpaugh (1914) – .500 (10-10)

Bill Donovan (1917) – .464 (71-82)

Miller Huggins (1929)* – .573 (82-61) – in season

Art Fletcher (1929) – .545 (6-5)

Bob Shawkey (1930) – .558 (86-68)

Joe McCarthy (1946) – .629 (22-13) – in season

Bill Dickey (1946) – .543 (57-48) – in season

Johnny Nuen (1946) – .571 (8-6)

Bucky Haris (1948) – .610 (94-60)

Casey Stengel (1960) – .630 (97-57)

Ralph Houk (1963) – .646 (104-57)

Yogi Berra (1964) – .611 (99-63)

Johnny Keane (1965) – .200 (4-16) – in season

Ralph Houk (1973) – .494 (80-82)

Bill Virdon (1975) – .510 (53-51) – in season

Billy Martin (1978) – .553 (52-42) – in season

Bob Lemon (1979) – .523 (34-31) – in season

Billy Martin (1979) – .579 (55-40)

Dick Howser (1980) – .636 (103-59)

Gene Michael (1981) – .585 (48-34) – in season

Bob Lemon (1982) – .429 (6-8) – in season

Gene Michael (1982) – .512 (44-42) – in season

Clyde King (1982) – .468 (29-33)

Billy Martin (1983) – .562 (91-71)

Yogi Berra (1985) – .375 (6-10) – in season

Billy Martin (1985) – ..628 (91-54)

Lou Piniella (1987) – .549 (89-73)

Billy Martin (1988) – .588 (40-28) – in season

Lou Piniella (1988) – .484 (45-48)

Dallas Green (1989) – .463 (56-65) – in season

Bucky Dent (1990) – .367 (18-31) – in season

Stump Merrill (1991) – .438 (71-91)

Buck Showalter (1995) – .549 (79-65)

Joe Torre (2007) – .580 (94-68)

Joe Girardi (2017) – .562 (91-71)

Aaron Boone – current winning percentage = ..516 (33-31)

* In 1929, Miller Huggins was replaced because he was ill. He eventually passed away that season.

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Quick Analysis:

The last three Yankees managers were all replaced after seasons with winning percentages higher than Aaron Boone’s is now.

The following was the record of the last three Yankees managers after 64 games in their final season:

Joe Girardi: 38-26

Joe Torre: 33-31

Buck Showalter: 29-35

The last Yankees’ manager to be replaced during the season was Bucky Dent in 1990

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Manager data from Baseball-Almanac.

#mWAR

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