American League Pitching Leaders

Wins Above Replacement--all
1. Newhouser • DET 12.2
2. Stirnweiss • NYY 8.8
3. Potter • SLB 7.8
4. Lake • BOS 7.1
5. Gromek • CLE 6.3
6. Wolff • WSH 5.6
7. Stephens • SLB 5.5
8. Cullenbine • 2TM 5.5
9. Ferriss • BOS 5.1
10. Mayo • DET 4.8
WAR for Pitchers
1. Newhouser • DET 11.3
2. Potter • SLB 7.2
3. Wolff • WSH 6.0
4. Gromek • CLE 5.7
5. Hollingsworth • SLB 3.9
6. Lee • CHW 3.7
7. Ferriss • BOS 3.6
8. Berry • PHA 3.5
9. Leonard • WSH 3.5
10. Benton • DET 3.4
Earned Run Average
1. Newhouser • DET 1.81
2. Benton • DET 2.02
3. Wolff • WSH 2.12
4. Leonard • WSH 2.13
5. Lee • CHW 2.44
6. Potter • SLB 2.47
7. Gromek • CLE 2.55
8. Hollingsworth • SLB 2.70
9. Ferriss • BOS 2.96
10. Trout • DET 3.14
Wins
1. Newhouser • DET 25
2. Ferriss • BOS 21
3. Wolff • WSH 20
4. Gromek • CLE 19
5. Trout • DET 18
Reynolds • CLE 18
7. Leonard • WSH 17
8. Haefner • WSH 16
9. Lee • CHW 15
Potter • SLB 15
Win-Loss %
1. Muncrief • SLB .765
2. Newhouser • DET .735
3. Leonard • WSH .708
4. Gromek • CLE .679
5. Ferriss • BOS .677
6. Wolff • WSH .667
7. Benton • DET .619
8. Reynolds • CLE .600
9. Bevens • NYY .591
10. Potter • SLB .577
Walks & Hits per IP
1. Wolff • WSH 1.012
2. Potter • SLB 1.097
3. Newhouser • DET 1.114
4. Leonard • WSH 1.125
5. Bonham • NYY 1.151
6. Gromek • CLE 1.175
7. Haefner • WSH 1.238
8. Benton • DET 1.242
9. Lee • CHW 1.244
10. Gettel • NYY 1.254
Hits per 9 IP
1. Newhouser • DET 6.865
2. Wolff • WSH 7.200
3. Potter • SLB 7.473
4. Lee • CHW 8.199
5. Niggeling • WSH 8.202
6. Gettel • NYY 8.205
7. Gromek • CLE 8.211
8. Benton • DET 8.217
9. Reynolds • CLE 8.260
10. Christopher • PHA 8.433
Bases On Balls per 9 IP
1. Bonham • NYY 1.096
2. Leonard • WSH 1.458
3. Wolff • WSH 1.908
4. Overmire • DET 2.329
5. Gromek • CLE 2.367
6. Potter • SLB 2.397
7. Lopat • CHW 2.528
8. Haefner • WSH 2.606
9. Grove • CHW 2.820
10. Trout • DET 2.886
Strikeouts per 9 IP
1. Newhouser • DET 6.089
2. Kramer • SLB 4.617
3. Niggeling • WSH 4.585
4. Potter • SLB 4.547
5. Newsom • PHA 4.442
6. Lee • CHW 4.257
7. Reynolds • CLE 4.075
8. Leonard • WSH 4.000
9. Christopher • PHA 3.959
10. Gettel • NYY 3.899
Games Played
1. Berry • PHA 52
2. Pieretti • WSH 44
Reynolds • CLE 44
4. Trout • DET 41
5. Newhouser • DET 40
6. Klieman • CLE 38
7. Barrett • BOS 37
Haefner • WSH 37
9. Newsom • PHA 36
10. Carrasquel • WSH 35
Ferriss • BOS 35
Saves
1. Turner • NYY 10
2. Berry • PHA 5
3. Reynolds • CLE 4
Caldwell • CHW 4
Overmire • DET 4
Klieman • CLE 4
Johnson • CHW 4
8. Caster • 2TM 3
Haefner • WSH 3
Gettel • NYY 3
Benton • DET 3
Barrett • BOS 3
Innings Pitched
1. Newhouser • DET 313.1
2. Ferriss • BOS 264.2
3. Newsom • PHA 257.1
4. Potter • SLB 255.1
5. Gromek • CLE 251.0
6. Wolff • WSH 250.0
7. Reynolds • CLE 247.1
8. Trout • DET 246.1
9. Haefner • WSH 238.1
10. Pieretti • WSH 233.1
Strikeouts
1. Newhouser • DET 212
2. Potter • SLB 129
3. Newsom • PHA 127
4. Reynolds • CLE 112
5. Lee • CHW 108
Wolff • WSH 108
7. Gromek • CLE 101
8. Christopher • PHA 100
9. Kramer • SLB 99
10. Trout • DET 97
Games Started
1. Newhouser • DET 36
2. Newsom • PHA 34
3. Potter • SLB 32
4. Ferriss • BOS 31
Trout • DET 31
6. Gromek • CLE 30
Grove • CHW 30
Reynolds • CLE 30
9. Wolff • WSH 29
Leonard • WSH 29
Complete Games
1. Newhouser • DET 29
2. Ferriss • BOS 26
3. Gromek • CLE 21
Wolff • WSH 21
Potter • SLB 21
6. Lee • CHW 19
Haefner • WSH 19
8. Trout • DET 18
9. Lopat • CHW 17
Christopher • PHA 17
Shutouts
1. Newhouser • DET 8
2. Benton • DET 5
Ferriss • BOS 5
4. Wolff • WSH 4
Trout • DET 4
Leonard • WSH 4
Grove • CHW 4
Flores • PHA 4
9. Dietrich • CHW 3
Bagby • CLE 3
Smith • CLE 3
Potter • SLB 3
Pieretti • WSH 3
Newsom • PHA 3
Kramer • SLB 3
Gromek • CLE 3
Home Runs
1. Kramer • SLB 13
2. Newsom • PHA 12
Bevens • NYY 12
Grove • CHW 12
5. Bonham • NYY 11
Gettel • NYY 11
Humphries • CHW 11
8. Haefner • WSH 10
Potter • SLB 10
10. Dubiel • NYY 9
Jakucki • SLB 9
Christopher • PHA 9
Bases on Balls
1. Reynolds • CLE 130
2. O'Neill • BOS 117
3. Newhouser • DET 110
4. Newsom • PHA 103
5. Shirley • SLB 93
6. Pieretti • WSH 91
7. Wilson • BOS 88
8. Ferriss • BOS 85
9. Trout • DET 79
10. Lee • CHW 76
Hits
1. Ferriss • BOS 263
2. Newsom • PHA 255
3. Trout • DET 252
4. Newhouser • DET 239
5. Pieretti • WSH 235
6. Grove • CHW 233
7. Gromek • CLE 229
8. Reynolds • CLE 227
9. Haefner • WSH 226
Lopat • CHW 226
Strikeouts / Base On Balls
1. Leonard • WSH 2.743
2. Wolff • WSH 2.038
3. Newhouser • DET 1.927
4. Bonham • NYY 1.909
5. Potter • SLB 1.897
6. Gromek • CLE 1.530
7. Lee • CHW 1.421
8. Kramer • SLB 1.356
9. Christopher • PHA 1.333
10. Lopat • CHW 1.321
Home Runs per 9 IP
1. Pieretti • WSH 0.116
2. Newhouser • DET 0.144
3. Bagby • CLE 0.169
4. Ferriss • BOS 0.204
5. Hollingsworth • SLB 0.208
6. Leonard • WSH 0.208
7. Gromek • CLE 0.215
8. Wolff • WSH 0.252
9. Reynolds • CLE 0.255
10. Lee • CHW 0.276
Losses
1. Newsom • PHA 20
2. Kramer • SLB 15
Trout • DET 15
4. Humphries • CHW 14
Haefner • WSH 14
6. Lopat • CHW 13
Christopher • PHA 13
Pieretti • WSH 13
9. Niggeling • WSH 12
Reynolds • CLE 12
Lee • CHW 12
Shirley • SLB 12
Smith • CLE 12
Grove • CHW 12
Gerkin • PHA 12
Earned Runs
1. Newsom • PHA 94
2. Haefner • WSH 92
3. Lopat • CHW 91
4. Reynolds • CLE 88
5. Ferriss • BOS 87
6. Pieretti • WSH 86
Trout • DET 86
8. Grove • CHW 83
9. O'Neill • BOS 81
10. Christopher • PHA 80
Wild Pitches
1. Newhouser • DET 10
2. Knerr • PHA 7
3. Grove • CHW 6
O'Neill • BOS 6
Borowy • NYY 6
6. Niggeling • WSH 5
Hausmann • BOS 5
Shirley • SLB 5
Trout • DET 5
Zuber • NYY 5
Bagby • CLE 5
Hit By Pitch
1. Lee • CHW 10
2. Christopher • PHA 9
3. Gettel • NYY 7
Ferriss • BOS 7
Haefner • WSH 7
6. Lopat • CHW 6
7. Grove • CHW 5
O'Neill • BOS 5
Reynolds • CLE 5
10. Klieman • CLE 4
Gromek • CLE 4
Flores • PHA 4
Heflin • BOS 4
Tobin • DET 4
Batters Faced
1. Newhouser • DET 1,261
2. Newsom • PHA 1,116
3. Ferriss • BOS 1,103
4. Reynolds • CLE 1,074
5. Trout • DET 1,041
6. Potter • SLB 1,028
7. Gromek • CLE 1,026
8. Pieretti • WSH 1,020
9. Haefner • WSH 1,011
10. Wolff • WSH 1,000
Games Finished
1. Berry • PHA 40
2. Barrett • BOS 26
Turner • NYY 26
4. Johnson • CHW 19
5. Klieman • CLE 18
Carrasquel • WSH 18
7. Caster • 2TM 16
8. Caldwell • CHW 15
Holcombe • NYY 15
Ullrich • WSH 15
Adjusted ERA+
1. Newhouser • DET 195
2. Benton • DET 175
3. Wolff • WSH 146
4. Leonard • WSH 146
5. Potter • SLB 145
6. Lee • CHW 135
7. Hollingsworth • SLB 132
8. Gromek • CLE 127
9. Ferriss • BOS 115
10. Trout • DET 113
Fielding Independent Pitching
1. Newhouser • DET 2.61
2. Leonard • WSH 2.63
3. Wolff • WSH 2.85
4. Potter • SLB 3.01
5. Gromek • CLE 3.04
6. Lee • CHW 3.28
7. Trout • DET 3.30
8. Ferriss • BOS 3.33
9. Benton • DET 3.40
10. Bonham • NYY 3.41
Adj. Pitching Runs
1. Newhouser • DET 58
2. Potter • SLB 32
3. Wolff • WSH 30
4. Benton • DET 24
5. Gromek • CLE 21
6. Leonard • WSH 20
7. Lee • CHW 18
8. Hollingsworth • SLB 16
9. Berry • PHA 15
10. Muncrief • SLB 13
Adj. Pitching Wins
1. Newhouser • DET 6.8
2. Potter • SLB 3.7
3. Wolff • WSH 3.4
4. Benton • DET 2.7
5. Gromek • CLE 2.4
6. Leonard • WSH 2.2
7. Lee • CHW 2.1
8. Hollingsworth • SLB 1.8
9. Berry • PHA 1.6
10. Muncrief • SLB 1.5
Base-Out Runs Saved (RE24)
1. Newhouser • DET 42.13
2. Wolff • WSH 36.65
3. Potter • SLB 28.70
4. Ferriss • BOS 26.46
5. Leonard • WSH 17.60
6. Mueller • DET 16.67
7. Berry • PHA 12.57
8. Muncrief • SLB 12.50
9. Barrett • BOS 11.88
10. Benton • DET 11.82
Win Probability Added (WPA)
1. Wolff • WSH 5.5
2. Newhouser • DET 3.7
3. Ferriss • BOS 3.3
4. Christopher • PHA 2.9
5. Berry • PHA 2.7
6. Mueller • DET 2.6
7. Leonard • WSH 1.9
8. Benton • DET 1.8
9. Muncrief • SLB 1.7
10. Potter • SLB 1.6
Sit. Wins Saved (WPA/LI)
1. Wolff • WSH 4.5
2. Newhouser • DET 4.0
3. Potter • SLB 3.1
4. Leonard • WSH 2.2
5. Berry • PHA 2.1
6. Mueller • DET 2.1
7. Christopher • PHA 1.4
8. Ferriss • BOS 1.4
9. Trout • DET 1.3
10. Gromek • CLE 1.2
Championship WPA (cWPA)
1. Wolff • WSH 18.2
2. Newhouser • DET 13.3
3. Mueller • DET 8.4
4. Ferriss • BOS 4.9
5. Benton • DET 2.3
6. Ruffing • NYY 2.0
7. Trout • DET 2.0
8. Oana • DET 2.0
9. Shirley • SLB 1.9
10. Potter • SLB 1.9
Base-Out Wins Saved (REW)
1. Newhouser • DET 4.7
2. Wolff • WSH 4.4
3. Potter • SLB 3.2
4. Ferriss • BOS 3.0
5. Leonard • WSH 2.0
6. Mueller • DET 1.8
7. Berry • PHA 1.4
8. Muncrief • SLB 1.3
9. Barrett • BOS 1.3
10. Benton • DET 1.3

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