American League Pitching Leaders

Wins Above Replacement--all
1. Martinez • BOS 11.7
2. Rodriguez • SEA 10.4
3. Erstad • ANA 8.4
4. Glaus • ANA 7.8
5. Giambi • OAK 7.8
6. Garciaparra • BOS 7.4
7. Delgado • TOR 7.3
8. Radke • MIN 6.2
9. Damon • KCR 6.1
10. Thomas • CHW 6.0
WAR for Pitchers
1. Martinez • BOS 11.7
2. Radke • MIN 6.2
3. Mussina • BAL 5.7
4. Rogers • TEX 5.0
5. Colón • CLE 4.9
6. Wells • TOR 4.8
7. Clemens • NYY 4.6
8. Finley • CLE 4.5
9. Helling • TEX 4.2
10. Hudson • OAK 4.0
Earned Run Average
1. Martinez • BOS 1.74
2. Clemens • NYY 3.70
3. Mussina • BAL 3.79
4. Sirotka • CHW 3.79
5. Colón • CLE 3.88
6. Wells • TOR 4.11
7. Heredia • OAK 4.12
8. Lopez • TBD 4.13
9. Hudson • OAK 4.14
10. Finley • CLE 4.17
Wins
1. Hudson • OAK 20
Wells • TOR 20
3. Pettitte • NYY 19
4. Martinez • BOS 18
5. Sele • SEA 17
6. Burba • CLE 16
Finley • CLE 16
Helling • TEX 16
9. Appier • OAK 15
Colón • CLE 15
Heredia • OAK 15
Sirotka • CHW 15
Win-Loss %
1. Hudson • OAK .769
2. Martinez • BOS .750
3. Burba • CLE .727
4. Wells • TOR .714
5. Parque • CHW .684
6. Pettitte • NYY .679
7. Baldwin • CHW .667
Mercedes • BAL .667
9. Colón • CLE .652
10. Sele • SEA .630
Walks & Hits per IP
1. Martinez • BOS 0.737
2. Mussina • BAL 1.187
3. Hernández • NYY 1.211
4. Hudson • OAK 1.241
5. Milton • MIN 1.245
6. Weaver • DET 1.285
7. Wells • TOR 1.293
8. Clemens • NYY 1.312
9. Abbott • SEA 1.363
10. Baldwin • CHW 1.371
Hits per 9 IP
1. Martinez • BOS 5.309
2. Hudson • OAK 7.517
3. Colón • CLE 7.803
4. Clemens • NYY 8.104
5. Abbott • SEA 8.246
6. Hernández • NYY 8.555
7. Finley • CLE 8.711
8. Helling • TEX 8.793
9. Mussina • BAL 8.937
10. Ponson • BAL 9.041
Bases On Balls per 9 IP
1. Wells • TOR 1.215
2. Martinez • BOS 1.327
3. Mussina • BAL 1.742
4. Milton • MIN 1.980
5. Moehler • DET 2.022
6. Rekar • TBD 2.025
Radke • MIN 2.025
8. Weaver • DET 2.340
9. Hernández • NYY 2.346
10. Loaiza • 2TM 2.574
Strikeouts per 9 IP
1. Martinez • BOS 11.779
2. Colón • CLE 10.149
3. Nomo • DET 8.574
4. Burba • CLE 8.467
5. Clemens • NYY 8.281
6. Mussina • BAL 7.952
7. Finley • CLE 7.803
8. Hudson • OAK 7.517
9. Milton • MIN 7.200
10. Escobar • TOR 7.100
Games Played
1. Wunsch • CHW 83
2. Venafro • TEX 77
3. Wells • MIN 76
4. Trombley • BAL 75
5. Lowe • BOS 74
6. Nelson • NYY 73
7. Foulke • CHW 72
Karsay • CLE 72
Rhodes • SEA 72
Tam • OAK 72
Saves
1. Lowe • BOS 42
Jones • DET 42
3. Sasaki • SEA 37
4. Rivera • NYY 36
5. Foulke • CHW 34
Wetteland • TEX 34
7. Isringhausen • OAK 33
Koch • TOR 33
9. Percival • ANA 32
Hernández • TBD 32
Innings Pitched
1. Mussina • BAL 237.2
2. Wells • TOR 229.2
3. Rogers • TEX 227.1
4. Radke • MIN 226.2
5. Ponson • BAL 222.0
6. Finley • CLE 218.0
7. Helling • TEX 217.0
Martinez • BOS 217.0
Suppan • KCR 217.0
10. Sele • SEA 211.2
Strikeouts
1. Martinez • BOS 284
2. Colón • CLE 212
3. Mussina • BAL 210
4. Finley • CLE 189
5. Clemens • NYY 188
6. Nomo • DET 181
7. Burba • CLE 180
8. Hudson • OAK 169
9. Wells • TOR 166
10. Milton • MIN 160
Games Started
1. Helling • TEX 35
Wells • TOR 35
3. Finley • CLE 34
Mussina • BAL 34
Radke • MIN 34
Rogers • TEX 34
Sele • SEA 34
Trachsel • 2TM 34
9. Milton • MIN 33
Suppan • KCR 33
Complete Games
1. Wells • TOR 9
2. Martinez • BOS 7
3. Ponson • BAL 6
Mussina • BAL 6
5. Radke • MIN 4
Lopez • TBD 4
7. Trachsel • 2TM 3
Suppan • KCR 3
Pettitte • NYY 3
Hernández • NYY 3
Finley • CLE 3
Escobar • TOR 3
Shutouts
1. Martinez • BOS 4
2. Hudson • OAK 2
Sele • SEA 2
4. Baldwin • CHW 1
Colón • CLE 1
Cooper • ANA 1
Eldred • CHW 1
Escobar • TOR 1
Halama • SEA 1
Harper • TBD 1
Lopez • TBD 1
Mays • MIN 1
Meche • SEA 1
Mendoza • NYY 1
Appier • OAK 1
Pettitte • NYY 1
Ponson • BAL 1
Radke • MIN 1
Reichert • KCR 1
Schoeneweis • ANA 1
Sparks • DET 1
Suppan • KCR 1
Suzuki • KCR 1
Wells • TOR 1
Wright • CLE 1
Zito • OAK 1
Loaiza • 2TM 1
Trachsel • 2TM 1
Mussina • BAL 1
Home Runs
1. Suppan • KCR 36
2. Milton • MIN 35
3. Baldwin • CHW 34
Hernández • NYY 34
5. Nomo • DET 31
Wakefield • BOS 31
7. Carpenter • TOR 30
Ponson • BAL 30
9. Helling • TEX 29
Loaiza • 2TM 29
Bases on Balls
1. Appier • OAK 102
2. Finley • CLE 101
3. Helling • TEX 99
4. Colón • CLE 98
5. Suzuki • KCR 94
6. Burba • CLE 91
Reichert • KCR 91
8. Nomo • DET 89
9. Escobar • TOR 85
10. Clemens • NYY 84
Suppan • KCR 84
Hits
1. Wells • TOR 266
2. Radke • MIN 261
3. Rogers • TEX 257
4. Suppan • KCR 240
5. Mussina • BAL 236
6. Trachsel • 2TM 232
7. Loaiza • 2TM 228
8. Ponson • BAL 223
9. Moehler • DET 222
10. Sele • SEA 221
Strikeouts / Base On Balls
1. Martinez • BOS 8.875
2. Wells • TOR 5.355
3. Mussina • BAL 4.565
4. Milton • MIN 3.636
5. Hernández • NYY 2.765
Radke • MIN 2.765
7. Weaver • DET 2.615
8. Moehler • DET 2.575
9. Rekar • TBD 2.436
10. Loaiza • 2TM 2.404
Home Runs per 9 IP
1. Martinez • BOS 0.705
2. Sele • SEA 0.723
3. Pettitte • NYY 0.748
4. Rogers • TEX 0.792
5. Burba • CLE 0.894
6. Wells • TOR 0.901
7. Rapp • BAL 0.931
8. Finley • CLE 0.950
9. Colón • CLE 1.005
10. Parque • CHW 1.011
Losses
1. Radke • MIN 16
2. Escobar • TOR 15
Mays • MIN 15
Mussina • BAL 15
Weaver • DET 15
Trachsel • 2TM 15
7. Cone • NYY 14
8. Helling • TEX 13
Hernández • NYY 13
Lopez • TBD 13
Ponson • BAL 13
Rogers • TEX 13
Loaiza • 2TM 13
Earned Runs
1. Carpenter • TOR 122
2. Cone • NYY 119
Ponson • BAL 119
Suppan • KCR 119
5. Rogers • TEX 115
6. Rapp • BAL 114
7. Radke • MIN 112
8. Helling • TEX 108
Milton • MIN 108
10. Escobar • TOR 107
Trachsel • 2TM 107
Wild Pitches
1. Reichert • KCR 18
2. Grimsley • NYY 16
Nomo • DET 16
4. Carrasco • 2TM 14
5. Cone • NYY 11
Mays • MIN 11
Suzuki • KCR 11
8. Finley • CLE 9
Wells • TOR 9
Guthrie • 2TM 9
Hit By Pitch
1. Weaver • DET 15
2. Martinez • BOS 14
3. Loaiza • 2TM 13
4. Parque • CHW 11
Rogers • TEX 11
Yan • TBD 11
7. Clemens • NYY 10
8. Appier • OAK 9
Cone • NYY 9
Helling • TEX 9
Martínez • BOS 9
Rupe • TBD 9
Batters Faced
1. Rogers • TEX 998
2. Mussina • BAL 987
3. Radke • MIN 978
4. Wells • TOR 972
5. Helling • TEX 963
6. Ponson • BAL 953
7. Suppan • KCR 948
8. Finley • CLE 936
9. Sele • SEA 908
10. Pettitte • NYY 903
Games Finished
1. Lowe • BOS 64
2. Koch • TOR 62
3. Rivera • NYY 61
4. Jones • DET 60
5. Foulke • CHW 58
Hernández • TBD 58
Sasaki • SEA 58
8. Isringhausen • OAK 57
Wetteland • TEX 57
10. Bottalico • KCR 50
Adjusted ERA+
1. Martinez • BOS 291
2. Sirotka • CHW 133
3. Clemens • NYY 131
4. Colón • CLE 127
5. Mussina • BAL 125
6. Wells • TOR 123
7. Lopez • TBD 119
8. Finley • CLE 118
9. Parque • CHW 117
10. Suzuki • KCR 117
Fielding Independent Pitching
1. Martinez • BOS 2.17
2. Wells • TOR 3.50
3. Mussina • BAL 3.52
4. Colón • CLE 3.96
5. Burba • CLE 4.00
6. Sele • SEA 4.00
7. Moehler • DET 4.15
8. Radke • MIN 4.18
9. Finley • CLE 4.19
10. Pettitte • NYY 4.22
Adj. Pitching Runs
1. Martinez • BOS 79
2. Mussina • BAL 28
3. Lowe • BOS 25
4. Clemens • NYY 24
5. Wells • TOR 23
6. Castillo • TOR 23
7. Colón • CLE 23
8. Sirotka • CHW 22
9. Zito • OAK 22
10. Foulke • CHW 20
Adj. Pitching Wins
1. Martinez • BOS 8.4
2. Mussina • BAL 2.6
3. Lowe • BOS 2.4
4. Clemens • NYY 2.3
5. Castillo • TOR 2.2
Wells • TOR 2.2
7. Colón • CLE 2.2
8. Zito • OAK 2.1
9. Sirotka • CHW 2.1
10. Foulke • CHW 1.9
Base-Out Runs Saved (RE24)
1. Martinez • BOS 86.93
2. Mussina • BAL 35.04
3. Colón • CLE 28.42
4. Castillo • TOR 27.55
5. Finley • CLE 26.38
6. Lowe • BOS 24.64
7. Clemens • NYY 24.19
8. Mecir • 2TM 23.74
9. Foulke • CHW 23.48
10. Tam • OAK 22.60
Win Probability Added (WPA)
1. Martinez • BOS 8.1
2. Foulke • CHW 6.4
3. Lowe • BOS 4.9
4. Koch • TOR 4.2
5. Wells • TOR 3.5
6. Mussina • BAL 3.1
7. Colón • CLE 3.0
8. Jones • DET 2.9
9. Rivera • NYY 2.4
10. Weaver • DET 2.4
Sit. Wins Saved (WPA/LI)
1. Martinez • BOS 8.5
2. Mussina • BAL 2.8
3. Foulke • CHW 2.4
4. Wells • TOR 2.3
5. Sele • SEA 2.2
6. Hudson • OAK 2.2
7. Castillo • TOR 2.0
8. Colón • CLE 2.0
9. Zito • OAK 1.9
10. Milton • MIN 1.8
Championship WPA (cWPA)
1. Martinez • BOS 7.3
2. Colón • CLE 4.3
3. Lowe • BOS 3.6
4. Koch • TOR 3.3
5. Sasaki • SEA 3.3
6. Foulke • CHW 3.2
7. Finley • CLE 2.8
8. Wells • TOR 2.4
9. Rhodes • SEA 2.4
10. Garcés • BOS 2.1
Base-Out Wins Saved (REW)
1. Martinez • BOS 9.2
2. Mussina • BAL 3.5
3. Colón • CLE 2.7
4. Castillo • TOR 2.6
5. Finley • CLE 2.5
6. Clemens • NYY 2.3
7. Lowe • BOS 2.3
8. Mecir • 2TM 2.2
9. Foulke • CHW 2.2
10. Zito • OAK 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