American League Pitching Leaders

Wins Above Replacement--all
1. Ripken • BAL 10.0
2. Stieb • TOR 7.9
3. Moseby • TOR 7.3
4. Blyleven • CLE 7.2
5. Murray • BAL 7.1
6. Trammell • DET 6.7
7. Boggs • BOS 6.3
Mattingly • NYY 6.3
9. Lemon • DET 6.2
10. Alexander • TOR 6.1
WAR for Pitchers
1. Stieb • TOR 7.9
2. Blyleven • CLE 7.2
3. Alexander • TOR 6.1
4. Boddicker • BAL 5.2
5. Beattie • SEA 5.1
6. Hernández • DET 4.8
7. Niekro • NYY 4.6
8. Witt • CAL 4.6
9. Hough • TEX 4.6
10. Black • KCR 4.5
Earned Run Average
1. Boddicker • BAL 2.79
2. Stieb • TOR 2.83
3. Blyleven • CLE 2.87
4. Niekro • NYY 3.09
5. Zahn • CAL 3.12
6. Black • KCR 3.12
7. Davis • BAL 3.12
8. Alexander • TOR 3.13
9. Burris • OAK 3.15
10. Viola • MIN 3.21
Wins
1. Boddicker • BAL 20
2. Blyleven • CLE 19
Morris • DET 19
4. Petry • DET 18
Viola • MIN 18
6. Alexander • TOR 17
Black • KCR 17
Langston • SEA 17
Wilcox • DET 17
10. Hough • TEX 16
Niekro • NYY 16
Stieb • TOR 16
Win-Loss %
1. Alexander • TOR .739
2. Blyleven • CLE .731
3. Petry • DET .692
4. Wilcox • DET .680
5. Niekro • NYY .667
Stieb • TOR .667
7. Nipper • BOS .647
8. Boddicker • BAL .645
9. Morris • DET .633
10. Langston • SEA .630
Walks & Hits per IP
1. Black • KCR 1.128
2. Blyleven • CLE 1.135
3. Stieb • TOR 1.135
4. Alexander • TOR 1.135
5. Mason • TEX 1.139
6. Boddicker • BAL 1.144
7. Viola • MIN 1.157
8. Seaver • CHW 1.170
9. Smithson • MIN 1.190
10. Hoyt • CHW 1.218
Hits per 9 IP
1. Stieb • TOR 7.247
2. Blyleven • CLE 7.494
3. Boddicker • BAL 7.508
4. Langston • SEA 7.520
5. Mason • TEX 7.763
6. Berenguer • DET 7.806
7. Viola • MIN 7.859
8. Dotson • CHW 7.913
9. Black • KCR 7.914
10. Alexander • TOR 8.186
Bases On Balls per 9 IP
1. Hoyt • CHW 1.642
2. Smithson • MIN 1.929
3. Guidry • NYY 2.024
4. Alexander • TOR 2.029
5. Haas • MIL 2.044
6. Butcher • MIN 2.120
7. Sutton • MIL 2.158
8. Sorensen • OAK 2.160
9. Zahn • CAL 2.167
10. Darwin • TEX 2.173
Strikeouts per 9 IP
1. Langston • SEA 8.160
2. Witt • CAL 7.151
3. Moore • SEA 6.708
4. Stieb • TOR 6.674
5. Berenguer • DET 6.309
6. Bannister • CHW 6.275
7. Blyleven • CLE 6.245
8. Boyd • BOS 6.101
9. Sutton • MIL 6.052
10. Guidry • NYY 5.842
Games Played
1. Hernández • DET 80
2. Quisenberry • KCR 72
3. López • DET 71
4. Camacho • CLE 69
5. Caudill • OAK 68
6. Davis • MIN 64
Righetti • NYY 64
8. Jeffcoat • CLE 63
Key • TOR 63
10. Howell • NYY 61
Saves
1. Quisenberry • KCR 44
2. Caudill • OAK 36
3. Hernández • DET 32
4. Righetti • NYY 31
5. Davis • MIN 29
6. Camacho • CLE 23
Fingers • MIL 23
8. Stanley • BOS 22
9. Martinez • BAL 17
10. López • DET 14
Innings Pitched
1. Stieb • TOR 267.0
2. Hough • TEX 266.0
3. Alexander • TOR 261.2
4. Boddicker • BAL 261.1
5. Viola • MIN 257.2
6. Black • KCR 257.0
7. Smithson • MIN 252.0
8. Witt • CAL 246.2
9. Tanana • TEX 246.1
10. Dotson • CHW 245.2
Strikeouts
1. Langston • SEA 204
2. Stieb • TOR 198
3. Witt • CAL 196
4. Blyleven • CLE 170
5. Hough • TEX 164
6. Moore • SEA 158
7. Bannister • CHW 152
8. Viola • MIN 149
9. Morris • DET 148
10. Petry • DET 144
Smithson • MIN 144
Games Started
1. Clancy • TOR 36
Hough • TEX 36
Smithson • MIN 36
4. Alexander • TOR 35
Black • KCR 35
Leal • TOR 35
Morris • DET 35
Petry • DET 35
Stieb • TOR 35
Tanana • TEX 35
Viola • MIN 35
Complete Games
1. Hough • TEX 17
2. Boddicker • BAL 16
3. Dotson • CHW 14
4. Beattie • SEA 12
Blyleven • CLE 12
6. Alexander • TOR 11
Hoyt • CHW 11
Stieb • TOR 11
9. Davis • BAL 10
Flanagan • BAL 10
McGregor • BAL 10
Seaver • CHW 10
Smithson • MIN 10
Boyd • BOS 10
Viola • MIN 10
Shutouts
1. Zahn • CAL 5
Ojeda • BOS 5
3. Seaver • CHW 4
Boddicker • BAL 4
Blyleven • CLE 4
Viola • MIN 4
7. Boyd • BOS 3
McGregor • BAL 3
9. Stieb • TOR 2
Beattie • SEA 2
Romanick • CAL 2
Petry • DET 2
Witt • CAL 2
Leal • TOR 2
Langston • SEA 2
Hurst • BOS 2
Gubicza • KCR 2
Alexander • TOR 2
Flanagan • BAL 2
Davis • BAL 2
Home Runs
1. Smithson • MIN 35
2. Hoyt • CHW 31
3. Bannister • CHW 30
Tanana • TEX 30
5. Viola • MIN 28
6. Leal • TOR 27
Seaver • CHW 27
8. Gura • KCR 26
Hough • TEX 26
Martínez • BAL 26
Stewart • TEX 26
Bases on Balls
1. Langston • SEA 118
2. Dotson • CHW 103
3. Ojeda • BOS 96
4. Hough • TEX 94
5. Burris • OAK 90
6. Clancy • TOR 88
Hurst • BOS 88
Stieb • TOR 88
9. Morris • DET 87
Stewart • TEX 87
Hits
1. Hough • TEX 260
2. Clancy • TOR 249
Darwin • TEX 249
4. Smithson • MIN 246
5. Hoyt • CHW 244
6. Butcher • MIN 242
7. Romanick • CAL 240
Sorensen • OAK 240
9. Alexander • TOR 238
10. Moore • SEA 236
Strikeouts / Base On Balls
1. Hoyt • CHW 2.930
2. Guidry • NYY 2.886
3. Sutton • MIL 2.804
4. Smithson • MIN 2.667
5. Boyd • BOS 2.528
6. Alexander • TOR 2.356
7. Witt • CAL 2.333
8. Blyleven • CLE 2.297
9. Darwin • TEX 2.278
10. Stieb • TOR 2.250
Home Runs per 9 IP
1. Davis • BAL 0.280
2. Fontenot • NYY 0.425
3. Zahn • CAL 0.497
4. Beattie • SEA 0.555
5. Wilcox • DET 0.604
6. Gubicza • KCR 0.619
7. Witt • CAL 0.620
8. Niekro • NYY 0.626
9. Burris • OAK 0.638
10. Langston • SEA 0.640
Losses
1. Hoyt • CHW 18
2. Moore • SEA 17
3. Beattie • SEA 16
Cocanower • MIL 16
5. Clancy • TOR 15
Dotson • CHW 15
Heaton • CLE 15
Tanana • TEX 15
9. Gubicza • KCR 14
Hough • TEX 14
McCatty • OAK 14
Stewart • TEX 14
Earned Runs
1. Clancy • TOR 125
2. Bannister • CHW 117
Hoyt • CHW 117
Moore • SEA 117
5. Heaton • CLE 115
6. Hough • TEX 111
7. Seaver • CHW 104
8. Smithson • MIN 103
9. Stewart • TEX 101
10. Sorensen • OAK 100
Wild Pitches
1. Morris • DET 14
2. Cocanower • MIL 13
Martinez • BAL 13
4. Hough • TEX 12
Stewart • TEX 12
Tanana • TEX 12
7. John • CAL 11
8. Bannister • CHW 10
Clancy • TOR 10
10. Conroy • OAK 8
Davis • MIN 8
Flanagan • BAL 8
Jeffcoat • CLE 8
Rasmussen • NYY 8
Hit By Pitch
1. Stieb • TOR 11
2. Cocanower • MIL 9
Hough • TEX 9
4. Burris • OAK 8
Langston • SEA 8
Smithson • MIN 8
Wilcox • DET 8
Young • OAK 8
9. Dotson • CHW 7
Nipper • BOS 7
Williams • MIN 7
Batters Faced
1. Hough • TEX 1,133
2. Stieb • TOR 1,085
3. Alexander • TOR 1,061
4. Tanana • TEX 1,054
5. Boddicker • BAL 1,051
6. Smithson • MIN 1,047
Viola • MIN 1,047
8. Black • KCR 1,045
9. Dotson • CHW 1,035
10. Witt • CAL 1,032
Games Finished
1. Hernández • DET 68
2. Quisenberry • KCR 67
3. Caudill • OAK 62
4. Davis • MIN 57
5. Righetti • NYY 53
6. Camacho • CLE 49
7. Stanley • BOS 47
8. Sánchez • CAL 44
9. Martinez • BAL 42
10. López • DET 41
Adjusted ERA+
1. Stieb • TOR 146
2. Blyleven • CLE 144
3. Boddicker • BAL 139
4. Alexander • TOR 132
5. Viola • MIN 131
6. Zahn • CAL 129
7. Black • KCR 128
8. Tanana • TEX 127
9. Davis • BAL 125
10. Niekro • NYY 123
Fielding Independent Pitching
1. Witt • CAL 3.16
2. Davis • BAL 3.25
3. Stieb • TOR 3.32
4. Blyleven • CLE 3.37
5. Boyd • BOS 3.42
6. Fontenot • NYY 3.46
7. Alexander • TOR 3.46
8. Niekro • NYY 3.51
9. Moore • SEA 3.53
10. Darwin • TEX 3.55
Adj. Pitching Runs
1. Stieb • TOR 40
2. Blyleven • CLE 34
3. Hernández • DET 33
4. Boddicker • BAL 31
5. Alexander • TOR 29
6. Viola • MIN 28
7. Black • KCR 25
8. Quisenberry • KCR 21
9. Davis • BAL 20
10. Zahn • CAL 19
Adj. Pitching Wins
1. Stieb • TOR 4.3
2. Blyleven • CLE 3.6
3. Hernández • DET 3.5
4. Boddicker • BAL 3.2
5. Alexander • TOR 3.1
6. Viola • MIN 2.9
7. Black • KCR 2.7
8. Quisenberry • KCR 2.2
9. Davis • BAL 2.1
10. Zahn • CAL 2.0
Base-Out Runs Saved (RE24)
1. Stieb • TOR 48.45
2. Hernández • DET 38.28
3. Blyleven • CLE 37.41
4. Alexander • TOR 36.04
5. Black • KCR 29.90
6. Boddicker • BAL 29.58
7. Viola • MIN 29.10
8. Davis • BAL 27.82
9. Quisenberry • KCR 23.82
10. Witt • CAL 21.51
Win Probability Added (WPA)
1. Hernández • DET 8.7
2. Quisenberry • KCR 4.6
3. Viola • MIN 3.9
4. Black • KCR 3.5
5. Righetti • NYY 3.5
6. Stieb • TOR 3.4
7. Blyleven • CLE 3.4
8. Boddicker • BAL 3.1
9. Alexander • TOR 3.0
10. Witt • CAL 2.4
Sit. Wins Saved (WPA/LI)
1. Hernández • DET 4.3
2. Stieb • TOR 4.1
3. Blyleven • CLE 3.9
4. Black • KCR 3.8
5. Davis • BAL 3.2
6. Quisenberry • KCR 2.9
7. Alexander • TOR 2.8
8. Boddicker • BAL 2.6
9. Viola • MIN 2.3
10. Witt • CAL 2.2
Championship WPA (cWPA)
1. Viola • MIN 10.4
2. Hernández • DET 8.0
3. Quisenberry • KCR 7.9
4. Smithson • MIN 7.2
5. Black • KCR 5.3
6. Witt • CAL 4.7
7. Saberhagen • KCR 4.1
8. López • DET 3.4
9. Butcher • MIN 3.2
10. Corbett • CAL 2.7
Base-Out Wins Saved (REW)
1. Stieb • TOR 5.2
2. Hernández • DET 4.0
3. Blyleven • CLE 4.0
4. Alexander • TOR 3.8
5. Boddicker • BAL 3.2
6. Black • KCR 3.2
7. Viola • MIN 3.0
8. Davis • BAL 3.0
9. Quisenberry • KCR 2.4
10. Witt • CAL 2.2

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