American League Pitching Leaders

Wins Above Replacement--all
1. Wilson • 2TM 7.7
2. Robinson • BAL 7.7
3. Agee • CHW 6.4
4. Oliva • MIN 6.4
5. Peters • CHW 6.0
6. McAuliffe • DET 6.0
7. Killebrew • MIN 5.9
8. Kaline • DET 5.6
9. Fregosi • CAL 5.6
10. Yastrzemski • BOS 5.5
WAR for Pitchers
1. Wilson • 2TM 5.9
2. Peters • CHW 5.3
3. McDowell • CLE 4.9
4. Hargan • CLE 4.9
5. Siebert • CLE 4.7
6. Aker • KCA 4.6
7. Kaat • MIN 4.5
8. Nash • KCA 4.2
9. Bell • CLE 4.2
10. Tiant • CLE 4.1
Earned Run Average
1. Peters • CHW 1.98
2. Horlen • CHW 2.43
3. Hargan • CLE 2.48
4. Perry • MIN 2.54
5. John • CHW 2.62
6. Kaat • MIN 2.75
7. Siebert • CLE 2.80
8. McDowell • CLE 2.87
9. Krausse • KCA 2.99
10. Wilson • 2TM 3.07
Wins
1. Kaat • MIN 25
2. McLain • DET 20
3. Wilson • 2TM 18
4. Siebert • CLE 16
5. Palmer • BAL 15
6. Bell • CLE 14
John • CHW 14
Krausse • KCA 14
Lolich • DET 14
Richert • WSA 14
Win-Loss %
1. Boswell • MIN .706
2. McNally • BAL .684
3. Siebert • CLE .667
4. Kaat • MIN .658
5. Sanford • CAL .650
6. Bunker • BAL .625
7. Wilson • 2TM .621
8. Perry • MIN .611
9. Krausse • KCA .609
10. Palmer • BAL .600
Walks & Hits per IP
1. Peters • CHW 0.982
2. Siebert • CLE 1.058
3. Ortega • WSA 1.069
4. Kaat • MIN 1.070
5. Richert • WSA 1.079
6. Wilson • 2TM 1.091
7. Boswell • MIN 1.093
8. Perry • MIN 1.096
9. Peterson • NYY 1.098
10. Horlen • CHW 1.128
Hits per 9 IP
1. McDowell • CLE 6.021
2. Boswell • MIN 6.378
3. Peters • CHW 6.860
4. McLain • DET 6.980
5. Chance • CAL 7.140
6. Richert • WSA 7.180
7. Ortega • WSA 7.206
8. Siebert • CLE 7.207
9. Perry • MIN 7.275
10. Krausse • KCA 7.295
Bases On Balls per 9 IP
1. Kaat • MIN 1.625
2. Peterson • NYY 1.674
3. Grant • MIN 1.771
4. Peters • CHW 1.979
5. Hargan • CLE 2.109
6. McCormick • WSA 2.125
7. Horlen • CHW 2.261
8. John • CHW 2.300
9. Siebert • CLE 2.315
10. Ortega • WSA 2.417
Strikeouts per 9 IP
1. McDowell • CLE 10.420
2. Boswell • MIN 9.195
3. Lolich • DET 7.645
4. Richert • WSA 7.144
5. Bell • CLE 6.865
6. Downing • NYY 6.840
7. Wilson • 2TM 6.818
8. McNally • BAL 6.676
9. McLain • DET 6.537
10. Lonborg • BOS 6.490
Games Played
1. Fisher • 2TM 67
2. Aker • KCA 66
Cox • WSA 66
4. Worthington • MIN 65
5. Kline • WSA 63
6. Sanders • 2TM 62
7. Lee • CAL 61
McMahon • 2TM 61
Wyatt • 2TM 61
10. Humphreys • WSA 58
Saves
1. Aker • KCA 32
2. Kline • WSA 23
3. Sherry • DET 20
Fisher • 2TM 20
5. Miller • BAL 18
6. Worthington • MIN 16
Lee • CAL 16
8. Radatz • 2TM 14
9. Ramos • NYY 13
10. Locker • CHW 12
Innings Pitched
1. Kaat • MIN 304.2
2. McLain • DET 264.1
3. Wilson • 2TM 264.0
4. Chance • CAL 259.2
5. Bell • CLE 254.1
6. Stottlemyre • NYY 251.0
7. Grant • MIN 249.0
8. Richert • WSA 245.2
9. Siebert • CLE 241.0
10. John • CHW 223.0
Strikeouts
1. McDowell • CLE 225
2. Kaat • MIN 205
3. Wilson • 2TM 200
4. Richert • WSA 195
5. Bell • CLE 194
6. McLain • DET 192
7. Chance • CAL 180
8. Boswell • MIN 173
Lolich • DET 173
10. Siebert • CLE 163
Games Started
1. Kaat • MIN 41
2. McLain • DET 38
3. Bell • CLE 37
Chance • CAL 37
Wilson • 2TM 37
6. Grant • MIN 35
Stottlemyre • NYY 35
8. Richert • WSA 34
9. John • CHW 33
Lolich • DET 33
McNally • BAL 33
Complete Games
1. Kaat • MIN 19
2. McLain • DET 14
3. Wilson • 2TM 13
4. Bell • CLE 12
5. Siebert • CLE 11
Chance • CAL 11
Peters • CHW 11
Peterson • NYY 11
9. John • CHW 10
Grant • MIN 10
Shutouts
1. McDowell • CLE 5
Tiant • CLE 5
John • CHW 5
4. McLain • DET 4
Buzhardt • CHW 4
Peters • CHW 4
7. Wilson • 2TM 3
Stottlemyre • NYY 3
Barber • BAL 3
McCormick • WSA 3
Kaat • MIN 3
Hargan • CLE 3
Grant • MIN 3
Home Runs
1. McLain • DET 42
2. Richert • WSA 36
3. Wilson • 2TM 30
4. Kaat • MIN 29
Ortega • WSA 29
6. Siebert • CLE 25
7. Lolich • DET 24
8. Downing • NYY 23
Grant • MIN 23
McCormick • WSA 23
Bases on Balls
1. Chance • CAL 114
2. Brunet • CAL 106
3. McLain • DET 104
4. McDowell • CLE 102
5. Palmer • BAL 91
6. Lolich • DET 83
7. Stottlemyre • NYY 82
8. Bell • CLE 79
Downing • NYY 79
10. Sanders • 2TM 76
Hits
1. Kaat • MIN 271
2. Grant • MIN 248
3. Stottlemyre • NYY 239
4. Wilson • 2TM 214
5. McNally • BAL 212
6. Bell • CLE 211
7. Chance • CAL 206
8. McLain • DET 205
9. Lolich • DET 204
10. Peterson • NYY 196
Richert • WSA 196
Strikeouts / Base On Balls
1. Kaat • MIN 3.727
2. Hargan • CLE 2.933
3. Peters • CHW 2.867
4. Richert • WSA 2.826
5. Wilson • 2TM 2.703
6. Boswell • MIN 2.662
7. Siebert • CLE 2.629
8. McNally • BAL 2.469
9. Bell • CLE 2.456
10. John • CHW 2.421
Home Runs per 9 IP
1. Krausse • KCA 0.405
2. Hargan • CLE 0.422
3. Peters • CHW 0.484
4. John • CHW 0.525
5. McDowell • CLE 0.556
6. Horlen • CHW 0.597
7. Chance • CAL 0.624
8. Peterson • NYY 0.628
9. Stottlemyre • NYY 0.645
10. Bell • CLE 0.672
Losses
1. Stottlemyre • NYY 20
2. Chance • CAL 17
3. Bell • CLE 15
4. Lolich • DET 14
López • CAL 14
McCormick • WSA 14
McLain • DET 14
Merritt • MIN 14
Richert • WSA 14
10. Brunet • CAL 13
Grant • MIN 13
Horlen • CHW 13
Kaat • MIN 13
Santiago • BOS 13
Sheldon • 2TM 13
Earned Runs
1. McLain • DET 115
2. Lolich • DET 108
3. Stottlemyre • NYY 106
4. Kaat • MIN 93
Talbot • 2TM 93
6. Richert • WSA 92
7. Bell • CLE 91
8. Grant • MIN 90
Wilson • 2TM 90
10. Chance • CAL 89
Wild Pitches
1. Horlen • CHW 14
2. Boswell • MIN 12
Kaat • MIN 12
López • CAL 12
5. Lolich • DET 11
Peters • CHW 11
7. John • CHW 10
8. Bell • CLE 9
McNally • BAL 9
Wilson • 2TM 9
Hit By Pitch
1. López • CAL 9
2. Wickersham • DET 8
3. Chance • CAL 7
John • CHW 7
Lonborg • BOS 7
6. Grant • MIN 6
Horlen • CHW 6
Krausse • KCA 6
Lolich • DET 6
McDowell • CLE 6
Newman • CAL 6
Siebert • CLE 6
Wilson • 2TM 6
Wyatt • 2TM 6
Batters Faced
1. Kaat • MIN 1,227
2. McLain • DET 1,080
3. Chance • CAL 1,067
4. Wilson • 2TM 1,059
5. Stottlemyre • NYY 1,042
6. Grant • MIN 1,031
7. Bell • CLE 1,028
8. Richert • WSA 993
9. Siebert • CLE 957
10. Brunet • CAL 913
Games Finished
1. Aker • KCA 57
2. Fisher • 2TM 50
3. Kline • WSA 46
Worthington • MIN 46
5. Lee • CAL 39
Sherry • DET 39
Wyatt • 2TM 39
8. Ramos • NYY 38
9. Locker • CHW 35
Radatz • 2TM 35
Adjusted ERA+
1. Peters • CHW 160
2. Perry • MIN 142
3. Hargan • CLE 139
4. Kaat • MIN 131
5. Horlen • CHW 130
6. Siebert • CLE 123
7. John • CHW 121
8. McDowell • CLE 120
9. Wilson • 2TM 118
10. Boswell • MIN 115
Fielding Independent Pitching
1. Hargan • CLE 2.51
2. Peters • CHW 2.70
3. McDowell • CLE 2.71
4. John • CHW 2.94
5. Bell • CLE 2.98
6. Kaat • MIN 3.02
7. Horlen • CHW 3.08
8. Peterson • NYY 3.17
9. Boswell • MIN 3.21
10. Stottlemyre • NYY 3.31
Adj. Pitching Runs
1. Peters • CHW 28
2. Kaat • MIN 24
3. Hargan • CLE 21
4. Perry • MIN 20
5. Nash • KCA 20
6. Wilson • 2TM 19
7. Horlen • CHW 19
8. Aker • KCA 19
9. Barber • BAL 17
10. Siebert • CLE 15
Adj. Pitching Wins
1. Peters • CHW 3.2
2. Kaat • MIN 2.7
3. Nash • KCA 2.3
Hargan • CLE 2.3
5. Perry • MIN 2.3
6. Wilson • 2TM 2.2
7. Horlen • CHW 2.1
8. Aker • KCA 2.0
9. Barber • BAL 1.9
10. Siebert • CLE 1.7
Base-Out Runs Saved (RE24)
1. Peters • CHW 32.19
2. Wilson • 2TM 25.53
3. Kaat • MIN 24.43
4. Aker • KCA 23.95
5. Nash • KCA 23.07
6. Hargan • CLE 20.10
7. Horlen • CHW 19.95
8. McDowell • CLE 19.17
9. Barber • BAL 18.68
10. Miller • BAL 18.38
Win Probability Added (WPA)
1. Miller • BAL 4.9
2. Kaat • MIN 3.2
3. McDowell • CLE 3.1
4. Kline • WSA 3.0
5. Aker • KCA 2.9
6. Nash • KCA 2.9
7. Peters • CHW 2.9
8. Wilson • 2TM 2.9
9. John • CHW 2.6
10. Hargan • CLE 2.5
Sit. Wins Saved (WPA/LI)
1. Peters • CHW 3.5
2. Kaat • MIN 3.1
3. Miller • BAL 2.6
4. Nash • KCA 2.3
5. Hargan • CLE 2.2
6. Aker • KCA 2.1
7. Wilson • 2TM 2.1
8. Perry • MIN 2.1
9. Bell • CLE 2.0
10. McDowell • CLE 1.9
Championship WPA (cWPA)
1. Miller • BAL 10.1
2. Bell • CLE 5.7
3. McDowell • CLE 5.4
4. Barber • BAL 4.0
5. Sherry • DET 3.7
6. Palmer • BAL 3.2
7. McNally • BAL 3.2
8. Hargan • CLE 2.7
9. Lee • CAL 1.8
10. Short • 2TM 1.7
Base-Out Wins Saved (REW)
1. Peters • CHW 3.9
2. Wilson • 2TM 2.9
3. Nash • KCA 2.7
4. Kaat • MIN 2.7
5. Aker • KCA 2.6
6. Horlen • CHW 2.3
7. Hargan • CLE 2.2
8. McDowell • CLE 2.1
9. Barber • BAL 2.1
10. Miller • BAL 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