1931 American League

1931 American League^*
Traditional Statistics and Splits (Retrosheet)

1931 National League 1931 Major Leagues

1931 American League Leaders and Trailers
1931 Postseason
1931 Season as Seen Through the Prism of Player Won-Lost Records

Positional Average (Weighted Avg of Options): 0.500 (1-Year) (9-Year) (Long-Run) "

Positional Averages for Pitchers (Wgted Avg of Options): 0.500 "vs. Different Values for Starting vs. Relief Pitchers: (Empirical) (Based on Pitchers who Do Both)


Basic Player Won-Lost Records by Team (Sorted by pWOPA)
Team	Games	Wins	Losses	pWins	pLosses	pWOPA
Philadelphia Athletics	153.0	107.5	45.5	260.5	198.5	61.7
New York Yankees	155.0	95.0	60.0	250.0	215.0	35.1
Washington Senators I	156.0	93.0	63.0	249.0	219.0	29.7
Cleveland Indians	155.0	78.5	76.5	233.5	231.5	2.0
St. Louis Browns	154.0	63.0	91.0	217.0	245.0	-28.3
Boston Red Sox	153.0	62.5	90.5	215.5	243.5	-28.7
Detroit Tigers	154.0	61.0	93.0	215.0	247.0	-32.3
Chicago White Sox	156.0	57.5	98.5	213.5	254.5	-41.8

Ties count as 0.5 win and 0.5 loss. Teams in bold made the postseason. pWins equal team wins plus team games; pLosses equal team losses plus team games.


Expected Won-Lost Records by Team (Sorted by eWORL)
Team	eWins	eLosses	eWOPA	eWORL
New York Yankees	247.9	217.1	32.2	58.3
Philadelphia Athletics	240.5	218.5	22.5	48.2
Washington Senators I	239.8	228.2	12.2	38.8
Cleveland Indians	235.3	229.7	5.7	31.6
St. Louis Browns	228.3	233.7	-4.7	21.4
Boston Red Sox	223.9	235.1	-11.2	14.8
Detroit Tigers	224.7	237.3	-12.6	13.2
Chicago White Sox	221.8	246.2	-24.2	2.6


Batting Records by Team (Sorted by Net Batting Wins)
Team	eWins	eLosses	eWin Pct.	Net eWins
New York Yankees	127.0	101.7	0.555	25.3
Philadelphia Athletics	110.8	101.7	0.521	9.1
Cleveland Indians	112.4	105.3	0.516	7.1
Washington Senators I	110.3	109.0	0.503	1.3
St. Louis Browns	101.0	103.5	0.494	-2.5
Detroit Tigers	97.7	106.6	0.478	-8.9
Chicago White Sox	98.9	109.4	0.475	-10.5
Boston Red Sox	93.7	106.7	0.468	-13.0


Baserunning Records by Team (Sorted by Net Baserunning Wins)
Team	eWins	eLosses	eWin Pct.	Net eWins
Washington Senators I	11.8	9.8	0.546	2.0
Philadelphia Athletics	9.1	7.7	0.542	1.4
Cleveland Indians	10.9	10.2	0.518	0.8
Boston Red Sox	9.3	8.8	0.513	0.5
New York Yankees	11.1	10.9	0.505	0.2
Chicago White Sox	9.1	9.9	0.480	-0.8
St. Louis Browns	9.0	10.0	0.476	-0.9
Detroit Tigers	10.0	11.0	0.476	-1.0


Pitching Records by Team (Sorted by Net Pitching Wins)
Team	eWins	eLosses	eWin Pct.	Net eWins
Philadelphia Athletics	71.0	65.4	0.521	5.6
Washington Senators I	69.7	64.7	0.519	5.0
New York Yankees	64.9	62.0	0.512	2.9
Boston Red Sox	67.2	65.2	0.507	1.9
St. Louis Browns	66.6	67.1	0.498	-0.5
Detroit Tigers	67.0	68.3	0.495	-1.3
Cleveland Indians	62.8	64.4	0.494	-1.6
Chicago White Sox	64.7	72.1	0.473	-7.4


Fielding Records by Team (Sorted by Net Fielding Wins)
Team	eWins	eLosses	eWin Pct.	Net eWins
Philadelphia Athletics	48.5	44.9	0.519	3.6
Washington Senators I	47.5	45.3	0.512	2.2
Boston Red Sox	54.5	53.7	0.503	0.8
Detroit Tigers	50.8	50.6	0.501	0.2
New York Yankees	43.7	43.6	0.501	0.1
St. Louis Browns	52.3	52.6	0.499	-0.2
Cleveland Indians	48.8	50.2	0.493	-1.4
Chicago White Sox	50.9	53.0	0.490	-2.0

Player Won-Lost Records (all players)

Underlying Calculations related to 1931 American League

Ballpark Factors
Net Win Values
Positional Averages
Replacement Levels
Division of Shared Credit
Event Probabilities

^*Player won-loss records are calculated using Retrosheet play-by-play data. For some seasons, Retrosheet does not have full play-by-play data for all games. In these cases, some games may be missing.
The number of Games shown here are the number of games for which Retrosheet play-by-play data exist and were used in these calculations.

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