American League Pitching Leaders

Wins Above Replacement--all
1. Aguirre • DET 6.2
2. Pascual • MIN 6.1
3. Robinson • BAL 6.1
4. Mantle • NYY 6.0
5. Kaat • MIN 5.7
6. Colavito • DET 5.7
7. Siebern • KCA 5.5
8. Bunning • DET 5.3
9. Herbert • CHW 5.2
10. Radatz • BOS 5.2
WAR for Pitchers
1. Aguirre • DET 7.4
2. Radatz • BOS 5.5
3. Kaat • MIN 5.4
4. Pascual • MIN 5.3
5. Ford • NYY 5.1
6. Bunning • DET 4.8
7. Herbert • CHW 4.6
8. Roberts • BAL 4.4
9. Chance • LAA 4.1
10. Terry • NYY 4.0
Earned Run Average
1. Aguirre • DET 2.21
2. Roberts • BAL 2.78
3. Ford • NYY 2.90
4. Chance • LAA 2.96
5. Fisher • CHW 3.10
6. Kaat • MIN 3.14
7. Cheney • WSA 3.17
8. Terry • NYY 3.19
9. Herbert • CHW 3.27
10. Pascual • MIN 3.32
Wins
1. Terry • NYY 23
2. Donovan • CLE 20
Herbert • CHW 20
Pascual • MIN 20
5. Bunning • DET 19
6. Kaat • MIN 18
7. Ford • NYY 17
8. Aguirre • DET 16
9. Conley • BOS 15
Monbouquette • BOS 15
Win-Loss %
1. Stigman • MIN .706
2. Herbert • CHW .690
3. McBride • LAA .688
4. Ford • NYY .680
5. Aguirre • DET .667
Donovan • CLE .667
7. Terry • NYY .657
8. Bunning • DET .655
9. Pascual • MIN .645
10. Stafford • NYY .609
Walks & Hits per IP
1. Aguirre • DET 1.051
2. Terry • NYY 1.051
3. Roberts • BAL 1.134
4. Pascual • MIN 1.145
5. Fisher • CHW 1.172
6. Kaat • MIN 1.182
7. Donovan • CLE 1.205
8. Ford • NYY 1.211
9. Kralick • MIN 1.236
10. Monbouquette • BOS 1.241
Hits per 9 IP
1. Aguirre • DET 6.750
2. Cheney • WSA 6.958
3. Belinsky • LAA 7.158
4. Wilson • BOS 7.667
5. Stenhouse • WSA 7.721
6. Terry • NYY 7.744
7. Stafford • NYY 7.931
8. Estrada • BAL 8.019
9. Pfister • KCA 8.022
10. Pizarro • CHW 8.056
Bases On Balls per 9 IP
1. Donovan • CLE 1.688
2. Terry • NYY 1.718
3. Mossi • DET 1.797
4. Roberts • BAL 1.929
5. Pascual • MIN 2.061
6. Rudolph • 2TM 2.140
7. Fisher • CHW 2.217
8. Kralick • MIN 2.262
9. Ford • NYY 2.410
10. Monbouquette • BOS 2.486
Strikeouts per 9 IP
1. Pizarro • CHW 7.657
2. Cheney • WSA 7.633
3. Pascual • MIN 7.195
4. Belinsky • LAA 6.966
5. Estrada • BAL 6.649
6. Aguirre • DET 6.500
7. Wilson • BOS 6.444
8. Bunning • DET 6.419
9. Rakow • KCA 6.081
10. Mossi • DET 6.039
Games Played
1. Radatz • BOS 62
2. Wyatt • KCA 59
3. Bell • CLE 57
Fisher • CHW 57
Hoeft • BAL 57
Spring • LAA 57
7. Kutyna • WSA 54
8. Stock • BAL 53
9. Bridges • NYY 52
Wilhelm • BAL 52
Saves
1. Radatz • BOS 24
2. Bridges • NYY 18
3. Fox • DET 16
4. Wilhelm • BAL 15
5. Bell • CLE 12
6. Wyatt • KCA 11
7. Moore • MIN 9
Morgan • LAA 9
9. Duren • LAA 8
Chance • LAA 8
Innings Pitched
1. Terry • NYY 298.2
2. Kaat • MIN 269.0
3. Bunning • DET 258.0
4. Ford • NYY 257.2
Pascual • MIN 257.2
6. Donovan • CLE 250.2
7. Kralick • MIN 242.2
8. Conley • BOS 241.2
9. Herbert • CHW 236.2
10. Monbouquette • BOS 235.1
Rakow • KCA 235.1
Strikeouts
1. Pascual • MIN 206
2. Bunning • DET 184
3. Terry • NYY 176
4. Kaat • MIN 173
Pizarro • CHW 173
6. Estrada • BAL 165
7. Ford • NYY 160
8. Rakow • KCA 159
9. Aguirre • DET 156
10. Monbouquette • BOS 153
Games Started
1. Terry • NYY 39
2. Ford • NYY 37
Kralick • MIN 37
4. Bunning • DET 35
Herbert • CHW 35
Kaat • MIN 35
Monbouquette • BOS 35
Rakow • KCA 35
9. Donovan • CLE 34
10. Conley • BOS 33
Estrada • BAL 33
Pascual • MIN 33
Stafford • NYY 33
Complete Games
1. Pascual • MIN 18
2. Kaat • MIN 16
Donovan • CLE 16
4. Terry • NYY 14
5. Herbert • CHW 12
Bunning • DET 12
7. Aguirre • DET 11
Monbouquette • BOS 11
Rakow • KCA 11
Wynn • CHW 11
Shutouts
1. Kaat • MIN 5
Pascual • MIN 5
Donovan • CLE 5
4. McBride • LAA 4
Monbouquette • BOS 4
6. Belinsky • LAA 3
Wynn • CHW 3
Terry • NYY 3
Cheney • WSA 3
Perry • CLE 3
Home Runs
1. Terry • NYY 40
2. Kralick • MIN 31
Pappas • BAL 31
Rakow • KCA 31
5. Bunning • DET 28
Conley • BOS 28
Ramos • CLE 28
8. Pfister • KCA 27
Walker • KCA 27
10. Pascual • MIN 25
Bases on Balls
1. Belinsky • LAA 122
2. Estrada • BAL 121
Schwall • BOS 121
4. Wilson • BOS 111
5. Pfister • KCA 106
6. Rakow • KCA 98
7. Cheney • WSA 97
Pizarro • CHW 97
9. Stenhouse • WSA 90
10. Foytack • DET 86
Hits
1. Bunning • DET 262
2. Terry • NYY 257
3. Donovan • CLE 255
4. Ford • NYY 243
Kaat • MIN 243
6. Kralick • MIN 239
7. Conley • BOS 238
8. Pascual • MIN 236
9. Rakow • KCA 232
10. Herbert • CHW 228
Strikeouts / Base On Balls
1. Pascual • MIN 3.492
2. Mossi • DET 3.361
3. Terry • NYY 3.088
4. Roberts • BAL 2.488
5. Bunning • DET 2.486
6. Aguirre • DET 2.400
7. Monbouquette • BOS 2.354
8. Ford • NYY 2.319
9. Kaat • MIN 2.307
10. Kralick • MIN 2.279
Home Runs per 9 IP
1. Herbert • CHW 0.494
2. Belinsky • LAA 0.577
3. Aguirre • DET 0.583
4. Chance • LAA 0.610
5. Cheney • WSA 0.623
6. Rudolph • 2TM 0.662
7. Pizarro • CHW 0.708
8. Ford • NYY 0.768
9. Kaat • MIN 0.770
10. Roberts • BAL 0.800
Losses
1. Estrada • BAL 17
Rakow • KCA 17
3. Daniels • WSA 16
4. Schwall • BOS 15
Wynn • CHW 15
6. Conley • BOS 14
Kaat • MIN 14
Pfister • KCA 14
Pizarro • CHW 14
10. Latman • CLE 13
Monbouquette • BOS 13
Mossi • DET 13
Osteen • WSA 13
Earned Runs
1. Rakow • KCA 111
2. Conley • BOS 106
Terry • NYY 106
4. Kralick • MIN 104
5. Bunning • DET 103
6. Donovan • CLE 100
Schwall • BOS 100
8. Pfister • KCA 99
9. Estrada • BAL 95
Pascual • MIN 95
Wild Pitches
1. Kaat • MIN 13
2. McDevitt • KCA 11
Wilhelm • BAL 11
Wilson • BOS 11
5. Pfister • KCA 10
Stigman • MIN 10
7. Belinsky • LAA 9
Estrada • BAL 9
Rakow • KCA 9
10. Bonikowski • MIN 8
Wyatt • KCA 8
Hit By Pitch
1. Kaat • MIN 18
2. Belinsky • LAA 13
Bunning • DET 13
4. Estrada • BAL 10
Schwall • BOS 10
Lee • 2TM 10
7. McBride • LAA 9
Pfister • KCA 9
9. Fornieles • BOS 8
Wickersham • KCA 8
Batters Faced
1. Terry • NYY 1,191
2. Kaat • MIN 1,112
3. Bunning • DET 1,103
4. Ford • NYY 1,070
5. Pascual • MIN 1,053
6. Donovan • CLE 1,032
7. Conley • BOS 1,017
8. Kralick • MIN 1,011
9. Rakow • KCA 1,007
10. Herbert • CHW 984
Monbouquette • BOS 984
Games Finished
1. Radatz • BOS 53
2. Wilhelm • BAL 44
3. Bell • CLE 37
4. Moore • MIN 36
5. Bridges • NYY 35
6. Kutyna • WSA 31
7. Wyatt • KCA 30
8. Fox • DET 28
9. Hoeft • BAL 27
10. Morgan • LAA 26
Stock • BAL 26
Adjusted ERA+
1. Aguirre • DET 185
2. Roberts • BAL 133
3. Ford • NYY 130
4. Chance • LAA 130
5. Kaat • MIN 130
6. Cheney • WSA 128
7. Fisher • CHW 127
8. Monbouquette • BOS 124
9. Pascual • MIN 123
10. Herbert • CHW 120
Fielding Independent Pitching
1. Aguirre • DET 2.99
2. Pascual • MIN 2.99
3. Chance • LAA 3.30
4. Herbert • CHW 3.31
5. Ford • NYY 3.33
6. Pizarro • CHW 3.38
7. Monbouquette • BOS 3.40
8. Roberts • BAL 3.41
9. Kaat • MIN 3.48
10. Cheney • WSA 3.53
Adj. Pitching Runs
1. Aguirre • DET 41
2. Ford • NYY 28
3. Kaat • MIN 27
4. Radatz • BOS 27
5. Pascual • MIN 24
6. Roberts • BAL 23
7. Hall • BAL 21
8. Herbert • CHW 21
9. Monbouquette • BOS 19
10. Terry • NYY 18
Adj. Pitching Wins
1. Aguirre • DET 4.3
2. Ford • NYY 2.9
3. Kaat • MIN 2.9
4. Radatz • BOS 2.7
5. Pascual • MIN 2.6
6. Roberts • BAL 2.4
7. Hall • BAL 2.2
8. Herbert • CHW 2.1
9. Monbouquette • BOS 2.0
10. Terry • NYY 1.9
Base-Out Runs Saved (RE24)
1. Aguirre • DET 39.39
2. Ford • NYY 36.25
3. Radatz • BOS 28.87
4. Kaat • MIN 28.72
5. Roberts • BAL 28.32
6. Pascual • MIN 28.20
7. Herbert • CHW 27.58
8. Terry • NYY 24.82
9. Hall • BAL 23.68
10. Cheney • WSA 19.83
Win Probability Added (WPA)
1. Aguirre • DET 4.7
2. Ford • NYY 3.8
3. Pascual • MIN 3.6
4. Fox • DET 3.4
5. Herbert • CHW 3.2
6. Cheney • WSA 3.1
7. Monbouquette • BOS 2.9
8. Radatz • BOS 2.9
9. Terry • NYY 2.9
10. Kaat • MIN 2.8
Sit. Wins Saved (WPA/LI)
1. Aguirre • DET 5.0
2. Terry • NYY 3.6
3. Kaat • MIN 2.9
4. Roberts • BAL 2.7
5. Ford • NYY 2.6
6. Herbert • CHW 2.5
7. Pascual • MIN 2.4
8. Hall • BAL 2.3
9. Radatz • BOS 2.3
10. Fisher • CHW 2.3
Championship WPA (cWPA)
1. Terry • NYY 12.6
2. Ford • NYY 9.7
3. Kaat • MIN 6.0
4. Donovan • CLE 5.4
5. Stafford • NYY 5.2
6. Bridges • NYY 4.7
7. Chance • LAA 4.2
8. Pascual • MIN 4.1
9. Aguirre • DET 3.9
10. Daley • NYY 3.7
Base-Out Wins Saved (REW)
1. Aguirre • DET 4.1
2. Ford • NYY 4.0
3. Roberts • BAL 3.2
4. Kaat • MIN 3.0
5. Pascual • MIN 2.9
6. Herbert • CHW 2.9
Radatz • BOS 2.9
8. Terry • NYY 2.7
9. Hall • BAL 2.6
10. Cheney • WSA 2.0

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