American League Pitching Leaders

Wins Above Replacement--all
1. Johnson • WSH 12.8
2. Speaker • BOS 9.9
3. Leonard • BOS 9.4
4. Collins • PHA 9.1
5. Baker • PHA 7.3
6. Caldwell • NYY 7.1
7. Weilman • SLB 7.0
8. Crawford • DET 6.3
9. Hamilton • SLB 6.2
10. Coveleski • DET 5.9
WAR for Pitchers
1. Johnson • WSH 11.8
2. Leonard • BOS 9.5
3. Weilman • SLB 7.1
4. Caldwell • NYY 7.0
5. Hamilton • SLB 5.6
6. Coveleski • DET 5.4
7. Steen • CLE 4.7
8. Fisher • NYY 4.4
9. Collins • BOS 4.1
10. Cicotte • CHW 3.8
Earned Run Average
1. Leonard • BOS 0.96
2. Foster • BOS 1.70
3. Johnson • WSH 1.72
4. Caldwell • NYY 1.94
5. Cicotte • CHW 2.04
6. Weilman • SLB 2.08
7. Benz • CHW 2.26
8. Bender • PHA 2.26
9. Fisher • NYY 2.28
10. Warhop • NYY 2.37
Wins
1. Johnson • WSH 28
2. Coveleski • DET 22
3. Collins • BOS 20
4. Leonard • BOS 19
Dauss • DET 19
6. Caldwell • NYY 18
7. Bush • PHA 17
Bender • PHA 17
Weilman • SLB 17
10. Hamilton • SLB 16
Baumgardner • SLB 16
Win-Loss %
1. Bender • PHA .850
2. Leonard • BOS .792
3. Plank • PHA .682
4. Caldwell • NYY .667
5. Shawkey • PHA .652
6. Coveleski • DET .647
7. Foster • BOS .636
8. Gregg • 2TM .632
9. Boehling • WSH .619
10. Wyckoff • PHA .611
Walks & Hits per IP
1. Leonard • BOS 0.886
2. Caldwell • NYY 0.958
3. Johnson • WSH 0.971
4. Foster • BOS 1.020
5. Ayers • WSH 1.036
6. Warhop • NYY 1.043
7. Cicotte • CHW 1.084
8. Benz • CHW 1.098
9. Collins • BOS 1.131
10. Fisher • NYY 1.139
Hits per 9 IP
1. Leonard • BOS 5.568
2. Caldwell • NYY 6.465
3. Shaw • WSH 6.934
4. Johnson • WSH 6.950
5. Foster • BOS 6.973
6. Cicotte • CHW 7.351
7. Wyckoff • PHA 7.443
8. Coveleski • DET 7.447
9. Baumgardner • SLB 7.448
10. Ayers • WSH 7.496
Bases On Balls per 9 IP
1. McHale • NYY 1.555
2. Russell • CHW 1.775
3. Johnson • WSH 1.792
4. Warhop • NYY 1.828
5. Ayers • WSH 1.832
6. Collins • BOS 1.851
7. Plank • PHA 2.040
8. Benz • CHW 2.096
9. Caldwell • NYY 2.155
10. Foster • BOS 2.211
Strikeouts per 9 IP
1. Leonard • BOS 7.050
2. Mitchell • CLE 6.268
3. Shaw • WSH 5.743
4. Johnson • WSH 5.448
5. Bender • PHA 5.380
6. Plank • PHA 5.342
7. Hagerman • CLE 5.091
8. Ayers • WSH 5.020
9. Scott • CHW 4.903
10. Bush • PHA 4.762
Games Played
1. Johnson • WSH 51
2. Ayers • WSH 49
3. Shaw • WSH 48
Benz • CHW 48
5. Cicotte • CHW 45
Baumgardner • SLB 45
Dauss • DET 45
8. Coveleski • DET 44
James • SLB 44
Hamilton • SLB 44
Weilman • SLB 44
Saves
1. Shaw • WSH 4
Mitchell • SLB 4
Bentley • WSH 4
Faber • CHW 4
5. Plank • PHA 3
Pennock • PHA 3
Main • DET 3
Leonard • BOS 3
Ayers • WSH 3
Engel • WSH 3
Dauss • DET 3
Cicotte • CHW 3
Innings Pitched
1. Johnson • WSH 371.2
2. Coveleski • DET 303.1
3. Hamilton • SLB 302.1
4. Dauss • DET 302.0
5. Weilman • SLB 299.0
6. James • SLB 284.0
7. Benz • CHW 283.1
8. Collins • BOS 272.1
9. Cicotte • CHW 269.1
10. Ayers • WSH 265.1
Strikeouts
1. Johnson • WSH 225
2. Mitchell • CLE 179
3. Leonard • BOS 176
4. Shaw • WSH 164
5. Dauss • DET 150
6. Ayers • WSH 148
7. Benz • CHW 142
8. Scott • CHW 138
9. Coveleski • DET 124
10. Cicotte • CHW 122
Games Started
1. Johnson • WSH 40
2. Coveleski • DET 36
Weilman • SLB 36
4. Hamilton • SLB 35
James • SLB 35
Dauss • DET 35
Benz • CHW 35
8. Scott • CHW 33
9. Ayers • WSH 32
Mitchell • CLE 32
Complete Games
1. Johnson • WSH 33
2. Coveleski • DET 23
3. Dauss • DET 22
Caldwell • NYY 22
5. James • SLB 20
Hamilton • SLB 20
Weilman • SLB 20
8. Shawkey • PHA 18
9. Leonard • BOS 17
Foster • BOS 17
Fisher • NYY 17
Shutouts
1. Johnson • WSH 9
2. Bender • PHA 7
Leonard • BOS 7
4. Collins • BOS 6
5. Foster • BOS 5
Hamilton • SLB 5
Coveleski • DET 5
Caldwell • NYY 5
Shaw • WSH 5
Shawkey • PHA 5
Home Runs
1. Warhop • NYY 8
2. Pieh • NYY 6
3. Hamilton • SLB 5
Leverenz • SLB 5
Caldwell • NYY 5
Scott • CHW 5
Ayers • WSH 5
8. Benz • CHW 4
Shawkey • PHA 4
Bender • PHA 4
James • SLB 4
Bedient • BOS 4
Coveleski • DET 4
Bases on Balls
1. Shaw • WSH 137
2. Mitchell • CLE 124
3. Hagerman • CLE 118
4. James • SLB 109
5. Wyckoff • PHA 103
6. Coveleski • DET 100
Hamilton • SLB 100
8. Dauss • DET 87
9. Gregg • 2TM 85
10. Weilman • SLB 84
Baumgardner • SLB 84
Hits
1. Johnson • WSH 287
2. Dauss • DET 286
3. James • SLB 269
4. Hamilton • SLB 265
5. Weilman • SLB 260
6. Collins • BOS 252
7. Coveleski • DET 251
8. Benz • CHW 245
9. Scott • CHW 228
Mitchell • CLE 228
Strikeouts / Base On Balls
1. Johnson • WSH 3.041
2. Leonard • BOS 2.933
3. Ayers • WSH 2.741
4. Plank • PHA 2.619
5. Russell • CHW 2.394
6. McHale • NYY 2.273
7. Benz • CHW 2.152
8. Bender • PHA 1.945
9. Scott • CHW 1.840
10. Caldwell • NYY 1.804
Home Runs per 9 IP
1. Gregg • 2TM 0.000
Cicotte • CHW 0.000
Steen • CLE 0.000
4. Weilman • SLB 0.030
5. Keating • NYY 0.043
6. Johnson • WSH 0.073
7. Foster • BOS 0.085
8. Fisher • NYY 0.086
9. Bush • PHA 0.087
10. Dauss • DET 0.089
Losses
1. Benz • CHW 19
2. Johnson • WSH 18
Hamilton • SLB 18
Scott • CHW 18
5. Mitchell • CLE 17
Shaw • WSH 17
7. McHale • NYY 16
Cicotte • CHW 16
9. Ayers • WSH 15
Hagerman • CLE 15
Dauss • DET 15
Warhop • NYY 15
Earned Runs
1. Dauss • DET 96
2. Mitchell • CLE 91
3. James • SLB 90
4. Dubuc • DET 86
5. Coveleski • DET 84
Hamilton • SLB 84
7. Scott • CHW 80
8. Shaw • WSH 77
9. Collins • BOS 76
10. Ayers • WSH 75
Wild Pitches
1. Wyckoff • PHA 14
Johnson • WSH 14
3. Keating • NYY 11
4. Fisher • NYY 10
Shaw • WSH 10
James • SLB 10
7. Mitchell • CLE 9
8. Hagerman • CLE 8
Faber • CHW 8
Dauss • DET 8
Pennock • PHA 8
Hit By Pitch
1. Dauss • DET 18
2. Faber • CHW 12
Coveleski • DET 12
4. Johnson • WSH 11
Weilman • SLB 11
Warhop • NYY 11
7. Hamilton • SLB 10
8. Boehling • WSH 9
Cavet • DET 9
10. Baumgardner • SLB 8
Leonard • BOS 8
Shaw • WSH 8
Ayers • WSH 8
Boehler • DET 8
Bush • PHA 8
Batters Faced
1. Johnson • WSH 1,406
2. Hamilton • SLB 1,220
3. Dauss • DET 1,218
4. Coveleski • DET 1,217
5. Weilman • SLB 1,192
6. James • SLB 1,162
7. Benz • CHW 1,108
8. Mitchell • CLE 1,088
9. Shaw • WSH 1,060
10. Collins • BOS 1,033
Games Finished
1. Baumgardner • SLB 23
2. Bedient • BOS 21
3. Faber • CHW 17
4. Collamore • CLE 16
5. Coumbe • 2TM 15
Bressler • PHA 15
7. Bentley • WSH 14
Shaw • WSH 14
9. Cavet • DET 13
Mitchell • SLB 13
Adjusted ERA+
1. Leonard • BOS 279
2. Johnson • WSH 164
3. Foster • BOS 158
4. Caldwell • NYY 142
5. Cicotte • CHW 132
6. Weilman • SLB 131
7. Fisher • NYY 121
8. Benz • CHW 119
9. Warhop • NYY 117
10. Bender • PHA 115
Fielding Independent Pitching
1. Leonard • BOS 1.95
2. Johnson • WSH 2.02
3. Plank • PHA 2.17
4. Ayers • WSH 2.27
5. Benz • CHW 2.34
6. Cicotte • CHW 2.37
7. Russell • CHW 2.37
8. McHale • NYY 2.44
9. Bender • PHA 2.47
10. Keating • NYY 2.49
Adj. Pitching Runs
1. Johnson • WSH 47
2. Leonard • BOS 43
3. Caldwell • NYY 23
4. Weilman • SLB 20
5. Foster • BOS 18
6. Bressler • PHA 15
7. Cicotte • CHW 15
8. Fisher • NYY 14
9. Bender • PHA 12
10. Coveleski • DET 12
Adj. Pitching Wins
1. Johnson • WSH 5.5
2. Leonard • BOS 5.2
3. Caldwell • NYY 2.6
4. Weilman • SLB 2.3
5. Foster • BOS 2.1
6. Bressler • PHA 1.8
7. Cicotte • CHW 1.7
8. Fisher • NYY 1.6
9. Bender • PHA 1.3
10. Coveleski • DET 1.3
Base-Out Runs Saved (RE24)
1. Johnson • WSH 36.89
2. Caldwell • NYY 33.89
3. Leonard • BOS 29.33
4. Fisher • NYY 20.17
5. Bender • PHA 16.11
6. Shore • BOS 15.45
7. Warhop • NYY 12.50
8. Plank • PHA 11.38
9. Bressler • PHA 10.66
10. Foster • BOS 9.43
Win Probability Added (WPA)
1. Johnson • WSH 3.2
2. Leonard • BOS 3.2
3. Caldwell • NYY 2.9
4. Fisher • NYY 2.8
5. Shore • BOS 2.0
6. Foster • BOS 2.0
7. Plank • PHA 1.8
8. Shaw • WSH 1.7
9. Benz • CHW 1.5
10. Bender • PHA 1.5
Sit. Wins Saved (WPA/LI)
1. Johnson • WSH 3.6
2. Caldwell • NYY 3.5
3. Leonard • BOS 2.7
4. Scott • CHW 1.8
5. Fisher • NYY 1.6
6. Shore • BOS 1.6
7. Warhop • NYY 1.6
8. Cicotte • CHW 1.3
9. Plank • PHA 1.3
10. Ayers • WSH 1.2
Championship WPA (cWPA)
1. Plank • PHA 5.1
2. Johnson • WSH 3.7
3. Leonard • BOS 3.1
4. Bender • PHA 3.1
5. Benz • CHW 2.7
6. Fisher • NYY 1.9
7. Shawkey • PHA 1.9
8. Cicotte • CHW 1.7
9. Ayers • WSH 1.7
10. Dubuc • DET 1.6
Base-Out Wins Saved (REW)
1. Johnson • WSH 4.2
2. Caldwell • NYY 4.0
3. Leonard • BOS 3.5
4. Fisher • NYY 2.3
5. Bender • PHA 1.9
6. Shore • BOS 1.8
7. Warhop • NYY 1.4
8. Plank • PHA 1.3
9. Bressler • PHA 1.2
10. Foster • BOS 1.1

A ** by the stat's value indicates the player had fewer than the required number of at bats or plate appearances for the BA, OBP, SLG or OPS title that year. In order to rank the player, the necessary number of hitless at bats were added to the player's season total. The value printed here is their actual value and not the value used to rank them, therefore some numbers may appear out of order.

For batting rate stats, generally a minimum of 3.1 Plate Appearances/G, 1.0 IP/G, 0.67 Gm and Chances/Team Game (fielding), 0.2 SB att/Team Game (catchers), and 0.1 SB att/Team Game (baserunners only since 1951), and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. For pitcher fielding the minimums are reduced by a third. For LF, CF, RF fielding stats, we only have reliable data since 1901, so all leaders are since 1901. Explanation of min. requirements