American League Pitching Leaders

Wins Above Replacement--all
1. Petrocelli • BOS 10.0
2. Jackson • OAK 9.2
3. Bando • OAK 8.3
4. McLain • DET 7.8
5. Robinson • BAL 7.5
6. Blair • BAL 7.1
7. Perry • MIN 6.5
8. McDowell • CLE 6.4
9. Killebrew • MIN 6.2
10. Stottlemyre • NYY 6.1
WAR for Pitchers
1. McLain • DET 8.1
2. McDowell • CLE 6.6
3. Perry • MIN 6.3
4. Stottlemyre • NYY 5.7
5. Messersmith • CAL 5.3
6. John • CHW 5.1
7. Peterson • NYY 4.7
8. Lolich • DET 4.6
9. Perranoski • MIN 4.5
10. Bosman • WSA 4.5
Earned Run Average
1. Bosman • WSA 2.19
2. Palmer • BAL 2.34
3. Cuellar • BAL 2.38
4. Messersmith • CAL 2.52
5. Peterson • NYY 2.55
6. Cox • WSA 2.78
7. McLain • DET 2.80
8. Perry • MIN 2.82
9. Stottlemyre • NYY 2.82
10. Odom • OAK 2.92
Wins
1. McLain • DET 24
2. Cuellar • BAL 23
3. Boswell • MIN 20
McNally • BAL 20
Perry • MIN 20
Stottlemyre • NYY 20
7. Lolich • DET 19
8. McDowell • CLE 18
9. Culp • BOS 17
Peterson • NYY 17
Win-Loss %
1. Palmer • BAL .800
2. Perry • MIN .769
3. McNally • BAL .741
4. Bosman • WSA .737
5. McLain • DET .727
6. Odom • OAK .714
7. Culp • BOS .680
8. Cuellar • BAL .676
9. Segui • SEP .667
Phoebus • BAL .667
Walks & Hits per IP
1. Peterson • NYY 0.996
2. Cuellar • BAL 1.005
3. Bosman • WSA 1.010
4. Messersmith • CAL 1.076
5. Palmer • BAL 1.077
6. McLain • DET 1.092
7. McDowell • CLE 1.137
8. May • CAL 1.153
9. Bunker • KCR 1.168
10. McNally • BAL 1.176
Hits per 9 IP
1. Messersmith • CAL 6.084
2. Palmer • BAL 6.514
3. Cuellar • BAL 6.595
4. Lolich • DET 6.862
5. Odom • OAK 6.964
6. McDowell • CLE 7.011
7. May • CAL 7.087
8. Bosman • WSA 7.275
9. Peterson • NYY 7.544
10. Boswell • MIN 7.549
Bases On Balls per 9 IP
1. Peterson • NYY 1.423
2. Bosman • WSA 1.819
3. McLain • DET 1.855
4. Perry • MIN 2.270
5. Cuellar • BAL 2.446
6. Bunker • KCR 2.506
7. McGlothlin • CAL 2.597
8. Kaat • MIN 2.785
9. McNally • BAL 2.814
10. Murphy • CAL 2.879
Strikeouts per 9 IP
1. McDowell • CLE 8.811
2. Lolich • DET 8.690
3. Messersmith • CAL 7.596
4. Butler • KCR 7.250
5. Williams • CLE 7.015
6. Culp • BOS 6.819
7. Siebert • 2TM 6.750
8. Boswell • MIN 6.671
9. May • CAL 6.638
10. Coleman • WSA 6.614
Games Played
1. Wood • CHW 76
2. Perranoski • MIN 75
3. Lyle • BOS 71
4. Locker • 2TM 68
5. Segui • SEP 66
6. Williams • CLE 61
7. Fingers • OAK 60
Lindblad • OAK 60
9. Bouton • SEP 57
Pizarro • 3TM 57
Saves
1. Perranoski • MIN 31
2. Tatum • CAL 22
3. Lyle • BOS 17
4. Watt • BAL 16
Higgins • WSA 16
6. Wood • CHW 15
7. Aker • 2TM 14
8. Knowles • WSA 13
9. Williams • CLE 12
Segui • SEP 12
Richert • BAL 12
Fingers • OAK 12
Innings Pitched
1. McLain • DET 325.0
2. Stottlemyre • NYY 303.0
3. Cuellar • BAL 290.2
4. McDowell • CLE 285.0
5. Lolich • DET 280.2
6. Peterson • NYY 272.0
7. McNally • BAL 268.2
8. Perry • MIN 261.2
9. Boswell • MIN 256.1
10. Messersmith • CAL 250.0
Strikeouts
1. McDowell • CLE 279
2. Lolich • DET 271
3. Messersmith • CAL 211
4. Boswell • MIN 190
5. Coleman • WSA 182
Cuellar • BAL 182
7. McLain • DET 181
8. Culp • BOS 172
9. McNally • BAL 166
10. Butler • KCR 156
Tiant • CLE 156
Games Started
1. McLain • DET 41
2. McNally • BAL 40
3. Cuellar • BAL 39
Stottlemyre • NYY 39
5. Boswell • MIN 38
McDowell • CLE 38
7. Peterson • NYY 37
Tiant • CLE 37
9. Coleman • WSA 36
Lolich • DET 36
Perry • MIN 36
Complete Games
1. Stottlemyre • NYY 24
2. McLain • DET 23
3. McDowell • CLE 18
Cuellar • BAL 18
5. Peterson • NYY 16
6. Lolich • DET 15
7. Coleman • WSA 12
Perry • MIN 12
9. McNally • BAL 11
Dobson • OAK 11
Palmer • BAL 11
Shutouts
1. McLain • DET 9
2. Palmer • BAL 6
3. Cuellar • BAL 5
4. Kilkenny • DET 4
McDowell • CLE 4
Butler • KCR 4
Coleman • WSA 4
McNally • BAL 4
Peterson • NYY 4
10. Perry • MIN 3
Hunter • OAK 3
Odom • OAK 3
Peters • CHW 3
Stottlemyre • NYY 3
Home Runs
1. Tiant • CLE 37
2. Hunter • OAK 34
3. Bunker • KCR 29
Pattin • SEP 29
5. Bahnsen • NYY 28
6. Brabender • SEP 26
Coleman • WSA 26
Brunet • 2TM 26
9. Culp • BOS 25
McLain • DET 25
Williams • CLE 25
Bases on Balls
1. Tiant • CLE 129
2. Lolich • DET 122
3. Odom • OAK 112
4. Nagy • BOS 106
5. Brabender • SEP 103
6. Burbach • NYY 102
McDowell • CLE 102
8. Coleman • WSA 100
Messersmith • CAL 100
10. Boswell • MIN 99
Hits
1. McLain • DET 288
2. Stottlemyre • NYY 267
3. Kaat • MIN 252
4. Dobson • OAK 244
Perry • MIN 244
6. Peters • CHW 238
7. Horlen • CHW 237
8. McNally • BAL 232
9. John • CHW 230
10. Tiant • CLE 229
Strikeouts / Base On Balls
1. Peterson • NYY 3.488
2. McDowell • CLE 2.735
3. McLain • DET 2.701
4. Bosman • WSA 2.538
5. Perry • MIN 2.318
6. Cuellar • BAL 2.304
7. Lolich • DET 2.221
8. Culp • BOS 2.177
9. Wilson • DET 2.174
10. Messersmith • CAL 2.110
Home Runs per 9 IP
1. McDowell • CLE 0.411
2. Nagy • BOS 0.458
3. Peterson • NYY 0.496
4. Murphy • CAL 0.501
5. Bosman • WSA 0.513
6. Palmer • BAL 0.547
7. Cuellar • BAL 0.557
8. Nelson • KCR 0.559
9. Stottlemyre • NYY 0.564
10. Odom • OAK 0.584
Losses
1. Tiant • CLE 20
2. Bahnsen • NYY 16
Horlen • CHW 16
McGlothlin • CAL 16
Murphy • CAL 16
Peterson • NYY 16
Rooker • KCR 16
8. Hunter • OAK 15
Peters • CHW 15
10. Brabender • SEP 14
Hargan • CLE 14
McDowell • CLE 14
Stottlemyre • NYY 14
Williams • CLE 14
Earned Runs
1. Peters • CHW 110
2. Tiant • CLE 103
3. Dobson • OAK 101
McLain • DET 101
Murphy • CAL 101
6. Horlen • CHW 99
Pattin • SEP 99
8. Brabender • SEP 98
Lolich • DET 98
10. Culp • BOS 96
McNally • BAL 96
Wild Pitches
1. Messersmith • CAL 16
Murphy • CAL 16
3. Higgins • WSA 15
John • CHW 15
5. Lolich • DET 14
McDowell • CLE 14
7. Odom • OAK 13
8. Coleman • WSA 12
9. Bahnsen • NYY 10
Boswell • MIN 10
Hannan • WSA 10
Hit By Pitch
1. Murphy • CAL 21
2. Lolich • DET 14
3. Brabender • SEP 13
4. Williams • CLE 12
5. Nagy • BOS 11
6. Kaat • MIN 9
Perry • MIN 9
8. Boswell • MIN 8
Tiant • CLE 8
10. Lonborg • BOS 7
McDowell • CLE 7
Batters Faced
1. McLain • DET 1,304
2. Stottlemyre • NYY 1,244
3. Lolich • DET 1,172
4. McDowell • CLE 1,166
5. Cuellar • BAL 1,137
6. McNally • BAL 1,093
7. Tiant • CLE 1,091
8. Perry • MIN 1,079
9. Boswell • MIN 1,070
10. Peterson • NYY 1,066
Games Finished
1. Perranoski • MIN 52
2. Wood • CHW 50
3. Lyle • BOS 44
4. Watt • BAL 41
5. Knowles • WSA 40
6. Segui • SEP 38
7. Drabowsky • KCR 37
8. Higgins • WSA 35
Wilhelm • CAL 35
10. Tatum • CAL 33
Adjusted ERA+
1. Bosman • WSA 158
2. Palmer • BAL 152
3. Cuellar • BAL 149
4. Messersmith • CAL 137
5. Peterson • NYY 137
6. McLain • DET 134
7. Perry • MIN 131
8. McDowell • CLE 127
9. Cox • WSA 124
10. Nagy • BOS 124
Fielding Independent Pitching
1. McDowell • CLE 2.29
2. Peterson • NYY 2.63
3. Bosman • WSA 2.86
4. Cuellar • BAL 2.89
5. Messersmith • CAL 2.97
6. Palmer • BAL 3.02
7. McLain • DET 3.05
8. Lolich • DET 3.05
9. Perry • MIN 3.09
10. Boswell • MIN 3.19
Adj. Pitching Runs
1. McLain • DET 37
2. Cuellar • BAL 36
3. Perry • MIN 28
4. Palmer • BAL 27
5. Messersmith • CAL 26
6. Peterson • NYY 26
7. Bosman • WSA 26
8. Stottlemyre • NYY 24
9. McDowell • CLE 22
10. Tatum • CAL 22
Adj. Pitching Wins
1. McLain • DET 4.1
2. Cuellar • BAL 4.0
3. Palmer • BAL 3.1
4. Perry • MIN 3.0
5. Messersmith • CAL 2.9
6. Bosman • WSA 2.8
7. Peterson • NYY 2.8
8. Stottlemyre • NYY 2.7
9. McDowell • CLE 2.4
10. Tatum • CAL 2.4
Base-Out Runs Saved (RE24)
1. McLain • DET 51.73
2. Cuellar • BAL 43.28
3. Palmer • BAL 34.81
4. Perry • MIN 32.80
5. Messersmith • CAL 29.87
6. Tatum • CAL 29.69
7. Peterson • NYY 29.27
8. Bosman • WSA 28.68
9. Stottlemyre • NYY 27.96
10. McNally • BAL 23.71
Win Probability Added (WPA)
1. McLain • DET 7.2
2. Tatum • CAL 4.6
3. Cuellar • BAL 4.3
4. Perranoski • MIN 4.2
5. Peterson • NYY 3.8
6. Palmer • BAL 3.4
7. Perry • MIN 3.2
8. McDowell • CLE 3.1
9. Bosman • WSA 3.0
10. Messersmith • CAL 3.0
Sit. Wins Saved (WPA/LI)
1. Cuellar • BAL 5.3
2. McLain • DET 4.9
3. Peterson • NYY 4.3
4. McDowell • CLE 4.2
5. Palmer • BAL 3.3
6. Messersmith • CAL 3.3
7. Bosman • WSA 3.1
8. McNally • BAL 2.5
9. Perranoski • MIN 2.4
10. Perry • MIN 2.4
Championship WPA (cWPA)
1. Perranoski • MIN 6.6
2. Cuellar • BAL 3.7
3. McLain • DET 3.0
4. Perry • MIN 3.0
5. Palmer • BAL 2.8
6. Lindblad • OAK 2.4
7. McNally • BAL 2.1
8. Odom • OAK 2.0
9. Romo • 2TM 2.0
10. Hall • MIN 1.7
Base-Out Wins Saved (REW)
1. McLain • DET 5.8
2. Cuellar • BAL 4.9
3. Palmer • BAL 4.0
4. Perry • MIN 3.6
5. Messersmith • CAL 3.4
6. Tatum • CAL 3.3
7. Peterson • NYY 3.3
8. Bosman • WSA 3.3
9. Stottlemyre • NYY 3.1
10. McNally • BAL 2.6

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