American League Pitching Leaders

Wins Above Replacement--all

<strong>Wins Above Replacement</strong><br>A single number that presents the number of wins the player added<br>to the team above what a replacement player (think AAA or AAAA) would add.<br>Scale for a single-season: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter,<br>0-2 Reserve, < 0 Replacement Level <br>Developed by Sean Smith of BaseballProjection.com

1. Suzuki • SEA 9.2
2. Santana • MIN 8.8
3. Schilling • BOS 7.7
4. Rodriguez • NYY 7.6
5. Tejada • BAL 7.4
6. Radke • MIN 5.8
7. Rowand • CHW 5.7
8. Mora • BAL 5.6
9. Guerrero • ANA 5.6
10. Chavez • OAK 5.5

WAR for Pitchers

<strong>Wins Above Replacement for Pitchers</strong><br>A single number that presents the number of wins the player added<br>to the team above what a replacement player (think AAA or AAAA) would add. This value includes defensive support and includes additional value for high leverage situations.<br>Scale: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter,<br>0-2 Reserve, < 0 Replacement Level <br> Developed by Sean Smith of BaseballProjection.com

1. Santana • MIN 8.7
2. Schilling • BOS 7.8
3. Radke • MIN 5.9
4. Martínez • BOS 5.5
5. Drese • TEX 4.9
6. López • BAL 4.8
7. García • 2TM 4.8
8. Escobar • ANA 4.3
9. Hudson • OAK 4.3
10. Westbrook • CLE 4.3

Earned Run Average

<strong>9 * ER / IP</strong><br>For recent years, leaders need 1 IP<br>per team game played.<br>Bold indicates lowest ERA using current stats<br><span class=glimmer>Gold</span> means awarded ERA title at end of year.

1. Santana • MIN 2.61
2. Schilling • BOS 3.26
3. Westbrook • CLE 3.38
4. Radke • MIN 3.48
5. Hudson • OAK 3.53
6. López • BAL 3.59
7. García • 2TM 3.81
8. Buehrle • CHW 3.89
9. Martínez • BOS 3.90
10. Escobar • ANA 3.93

Wins

Wins

1. Schilling • BOS 21
2. Santana • MIN 20
3. Colón • ANA 18
Rogers • TEX 18
5. Mulder • OAK 17
6. Buehrle • CHW 16
Martínez • BOS 16
8. Drese • TEX 14
Lackey • ANA 14
Lee • CLE 14
Lieber • NYY 14
López • BAL 14
Lowe • BOS 14
Silva • MIN 14
Vázquez • NYY 14
Westbrook • CLE 14

Win-Loss %

<strong>Win-Loss Percentage</strong><br>W / (W + L)<br>For players, leaders need one decision for every ten team games.<br>For managers, minimum to qualify for leading is 320 games.

1. Schilling • BOS .778
2. Santana • MIN .769
3. Mulder • OAK .680
4. Hudson • OAK .667
Rogers • TEX .667
6. Rincón • MIN .647
7. Martínez • BOS .640
8. Lieber • NYY .636
Lee • CLE .636
Silva • MIN .636

Walks & Hits per IP

<strong>(BB + H)/IP</strong><br>For recent years, leaders need 1 IP<br>per team game played

1. Santana • MIN 0.921
2. Schilling • BOS 1.063
3. Radke • MIN 1.161
4. Martínez • BOS 1.171
5. García • 2TM 1.219
6. Arroyo • BOS 1.220
7. Westbrook • CLE 1.247
8. Buehrle • CHW 1.255
9. Hudson • OAK 1.261
10. López • BAL 1.277

Hits per 9 IP

<strong>9 x H / IP</strong><br>For recent years, leaders need 1 IP<br>per team game played

1. Santana • MIN 6.158
2. Lilly • TOR 7.799
3. Martínez • BOS 8.005
4. Harden • OAK 8.114
5. Schilling • BOS 8.179
6. Bonderman • DET 8.217
7. García • 2TM 8.229
8. Escobar • ANA 8.294
9. Sabathia • CLE 8.426
10. Arroyo • BOS 8.614

Bases On Balls per 9 IP

<strong>9 x BB / IP</strong><br>For recent years, leaders need 1 IP<br>per team game played

1. Lieber • NYY 0.917
2. Radke • MIN 1.065
3. Schilling • BOS 1.390
4. Silva • MIN 1.552
5. Buehrle • CHW 1.871
6. Hudson • OAK 2.099
7. Santana • MIN 2.132
8. Mussina • NYY 2.186
9. Hendrickson • TBD 2.258
10. Arroyo • BOS 2.368

Strikeouts per 9 IP

<strong>9 x SO / IP</strong><br>For recent years, leaders need 1 IP<br>per team game played

1. Santana • MIN 10.461
2. Martínez • BOS 9.415
3. Escobar • ANA 8.251
4. Bonderman • DET 8.217
5. Lee • CLE 8.095
6. Schilling • BOS 8.060
7. Contreras • 2TM 7.926
8. Harden • OAK 7.924
9. García • 2TM 7.886
10. Lilly • TOR 7.662

Games Played

Games Played or Pitched

1. Quantrill • NYY 86
2. Gordon • NYY 80
3. Rincón • MIN 77
4. Ryan • BAL 76
Timlin • BOS 76
6. Myers • 2TM 75
7. Marte • CHW 74
Rivera • NYY 74
Romero • MIN 74
10. Nathan • MIN 73
Grimsley • 2TM 73

Saves

Saves

1. Rivera • NYY 53
2. Cordero • TEX 49
3. Nathan • MIN 44
4. Percival • ANA 33
5. Foulke • BOS 32
6. Báez • TBD 30
7. Julio • BAL 22
Dotel • OAK 22
9. Urbina • DET 21
10. Takatsu • CHW 19

Innings Pitched

Innings Pitched

1. Buehrle • CHW 245.1
2. Santana • MIN 228.0
3. Schilling • BOS 226.2
4. Mulder • OAK 225.2
5. Radke • MIN 219.2
6. Garland • CHW 217.0
Maroth • DET 217.0
Martínez • BOS 217.0
9. Ponson • BAL 215.2
Westbrook • CLE 215.2

Strikeouts

Strikeouts

1. Santana • MIN 265
2. Martínez • BOS 227
3. Schilling • BOS 203
4. Escobar • ANA 191
5. García • 2TM 184
6. Bonderman • DET 168
Lilly • TOR 168
8. Harden • OAK 167
9. Buehrle • CHW 165
10. Zito • OAK 163

Games Started

Games Started

1. Buehrle • CHW 35
Rogers • TEX 35
3. Colón • ANA 34
Lohse • MIN 34
Radke • MIN 34
Santana • MIN 34
Zito • OAK 34
8. Drese • TEX 33
Escobar • ANA 33
Garland • CHW 33
Johnson • DET 33
Lee • CLE 33
Lowe • BOS 33
Maroth • DET 33
Martínez • BOS 33
Moyer • SEA 33
Mulder • OAK 33
Ponson • BAL 33
Silva • MIN 33

Complete Games

Complete Game

1. Westbrook • CLE 5
Ponson • BAL 5
Mulder • OAK 5
4. Buehrle • CHW 4
5. Schilling • BOS 3
May • KCR 3
Hudson • OAK 3
8. Batista • TOR 2
Loaiza • 2TM 2
Rogers • TEX 2
Redman • OAK 2
Maroth • DET 2
Lilly • TOR 2
Johnson • DET 2
Hendrickson • TBD 2
Anderson • KCR 2
Drese • TEX 2
Franklin • SEA 2
Bonderman • DET 2

Shutouts

Shutouts<br>No runs allowed and a complete game.

1. Hudson • OAK 2
Ponson • BAL 2
Bonderman • DET 2
4. Batista • TOR 1
Buehrle • CHW 1
Bush • TOR 1
Cabrera • BAL 1
Elarton • CLE 1
Franklin • SEA 1
Halladay • TOR 1
Johnson • DET 1
Lackey • ANA 1
Lilly • TOR 1
Lohse • MIN 1
López • BAL 1
Anderson • KCR 1
Martínez • BOS 1
May • KCR 1
Meche • SEA 1
Mulder • OAK 1
Radke • MIN 1
Rodríguez • TEX 1
Rogers • TEX 1
Sabathia • CLE 1
Santana • MIN 1
Silva • MIN 1
Washburn • ANA 1
Westbrook • CLE 1
Loaiza • 2TM 1
Maroth • DET 1

Home Runs

Home Runs Hit/Allowed

1. Moyer • SEA 44
2. Colón • ANA 38
May • KCR 38
4. Garland • CHW 34
5. Anderson • KCR 33
Buehrle • CHW 33
Franklin • SEA 33
Vázquez • NYY 33
9. Loaiza • 2TM 32
10. Contreras • 2TM 31

Bases on Balls

Bases on Balls/Walks

1. Batista • TOR 96
Zambrano • TBD 96
3. Cabrera • BAL 89
Lilly • TOR 89
5. Contreras • 2TM 84
6. Mulder • OAK 83
7. Harden • OAK 81
Lee • CLE 81
Zito • OAK 81
10. Escobar • ANA 76
Garland • CHW 76
Lohse • MIN 76

Hits

Hits/Hits Allowed

1. Ponson • BAL 265
2. Buehrle • CHW 257
3. Silva • MIN 255
4. Rogers • TEX 248
5. Maroth • DET 244
6. Lohse • MIN 240
7. May • KCR 234
8. Drese • TEX 233
9. Radke • MIN 229
10. Franklin • SEA 224
Lowe • BOS 224

Strikeouts / Base On Balls

<strong>SO/W or SO/BB</strong><br>For recent years, pitching leaders need 1 IP<br>per team game played.<br>No batting leaders computed.

1. Schilling • BOS 5.800
2. Lieber • NYY 5.667
3. Radke • MIN 5.500
4. Santana • MIN 4.907
5. Martínez • BOS 3.721
6. Mussina • NYY 3.300
7. Buehrle • CHW 3.235
8. Arroyo • BOS 3.021
9. García • 2TM 2.875
10. Escobar • ANA 2.513

Home Runs per 9 IP

<strong>9 x HR / IP</strong><br>For recent years, leaders need 1 IP<br>per team game played

1. Hudson • OAK 0.382
2. Drese • TEX 0.693
3. Lowe • BOS 0.739
4. Harden • OAK 0.759
5. Westbrook • CLE 0.793
6. Arroyo • BOS 0.856
7. Escobar • ANA 0.907
8. Schilling • BOS 0.913
9. Radke • MIN 0.942
10. García • 2TM 0.943

Losses

Losses

1. May • KCR 19
2. Franklin • SEA 16
3. Hendrickson • TBD 15
Johnson • DET 15
Ponson • BAL 15
6. Batista • TOR 13
Bonderman • DET 13
Lackey • ANA 13
Lohse • MIN 13
Maroth • DET 13
Moyer • SEA 13

Earned Runs

Earned Runs Allowed

1. Ponson • BAL 127
2. Garland • CHW 118
3. Moyer • SEA 117
4. Colón • ANA 116
May • KCR 116
Loaiza • 2TM 116
7. Lohse • MIN 115
8. Johnson • DET 112
Rogers • TEX 112
10. Mulder • OAK 111

Wild Pitches

Wild Pitches

1. Contreras • 2TM 17
2. Gregg • ANA 13
3. Batista • TOR 12
Cabrera • BAL 12
Vázquez • NYY 12
6. Knotts • DET 11
Lackey • ANA 11
8. Bell • TBD 10
Maroth • DET 10
Mulder • OAK 10

Hit By Pitch

Times Hit by a Pitch.

1. Arroyo • BOS 20
2. Martínez • BOS 16
Wakefield • BOS 16
Zambrano • TBD 16
5. Park • TEX 13
6. Hudson • OAK 12
Mulder • OAK 12
Villone • SEA 12
9. Brazelton • TBD 11
Drese • TEX 11
Lee • CLE 11
Moyer • SEA 11
Vázquez • NYY 11

Batters Faced

Batters Faced

1. Buehrle • CHW 1,016
2. Ponson • BAL 954
3. Mulder • OAK 952
4. Rogers • TEX 935
5. Maroth • DET 928
6. Zito • OAK 926
7. Garland • CHW 923
8. Schilling • BOS 910
9. Martínez • BOS 903
10. Radke • MIN 901

Games Finished

Games Finished<br>Credited to the last pitcher to appear for a team in a game.<br>Complete Games are not counted as Games Finished.

1. Rivera • NYY 69
2. Cordero • TEX 63
Nathan • MIN 63
4. Foulke • BOS 61
5. Báez • TBD 59
6. Julio • BAL 50
7. Percival • ANA 48
8. Urbina • DET 46
9. Takatsu • CHW 45
10. Dotel • OAK 41

Adjusted ERA+

<strong>ERA+</strong><br>100*[lgERA/ERA]<br>Adjusted to the player&#x2019;s ballpark(s).

1. Santana • MIN 182
2. Schilling • BOS 148
3. Radke • MIN 136
4. Westbrook • CLE 129
5. Hudson • OAK 129
6. López • BAL 127
7. Martínez • BOS 124
8. García • 2TM 121
9. Buehrle • CHW 121
10. Arroyo • BOS 120

Fielding Independent Pitching

<strong>Fielding Independent Pitching</strong><br>this stat measures a pitcher's effectiveness at preventing HR, BB, HBP and causing SO<br><tt>(13*HR + 3*(BB+HBP) - 2*SO)/IP + Constant<sub>lg</sub></tt><br>The constant is set so that each season major-league average FIP is the same as the major-league avg ERA

1. Santana • MIN 2.92
2. Schilling • BOS 3.11
3. Hudson • OAK 3.40
4. Radke • MIN 3.55
5. Martínez • BOS 3.58
6. García • 2TM 3.67
7. Lieber • NYY 3.71
8. Harden • OAK 3.71
9. Escobar • ANA 3.72
10. Arroyo • BOS 3.82

Adj. Pitching Runs

<strong>Adjusted Pitching Runs</strong><br>A set of formulas developed by Gary Gillette, Pete Palmer and others<br>that estimates a pitcher&#x2019;s total contributions<br>to a team&#x2019;s runs total via linear weights.<br>0.0 is an avg performance, <0 is worse than avg and >0 is better than avg

1. Santana • MIN 54
2. Schilling • BOS 40
3. Radke • MIN 30
4. Nathan • MIN 25
5. Rodríguez • ANA 25
6. Gordon • NYY 24
7. Rivera • NYY 24
8. Foulke • BOS 24
9. Martínez • BOS 23
10. Ryan • BAL 22

Adj. Pitching Wins

<strong>Adjusted Pitching Wins</strong><br>A set of formulas developed by Gary Gillette, Pete Palmer and others<br>that estimates a pitcher&#x2019;s total contributions<br>to a team&#x2019;s wins with his arm.<br>0.0 is an avg performance, <0 is worse than avg and >0 is better than avg

1. Santana • MIN 5.5
2. Schilling • BOS 4.1
3. Radke • MIN 3.0
4. Nathan • MIN 2.4
5. Rodríguez • ANA 2.4
6. Gordon • NYY 2.3
7. Rivera • NYY 2.3
8. Foulke • BOS 2.3
9. Martínez • BOS 2.2
10. Ryan • BAL 2.2

Base-Out Runs Saved (RE24)

<strong>Base-Out Runs Saved</strong><br>Given the bases occupied/out situation, how many runs did the pitcher<br>save in the resulting play. Compared to average, so 0 is average, and<br>above 0 is better than average

1. Santana • MIN 62.46
2. Schilling • BOS 48.26
3. Radke • MIN 37.21
4. Gordon • NYY 31.32
5. López • BAL 30.94
6. Ryan • BAL 28.99
7. Martínez • BOS 28.39
8. Rodríguez • ANA 28.14
9. Nathan • MIN 28.09
10. Rivera • NYY 27.39

Win Probability Added (WPA)

<strong>Win Probability Added by Pitcher</strong><br>Given average teams, this is the change in probability.<br>See <a href='https://www.baseball-reference.com/about/wpa.shtml'>Win Expectancy explainer</a> for details.

1. Nathan • MIN 5.8
2. Santana • MIN 5.7
3. Rivera • NYY 5.0
4. Schilling • BOS 4.6
5. Gordon • NYY 4.5
6. Cordero • TEX 4.4
7. Radke • MIN 3.7
8. Shields • ANA 3.5
9. Ryan • BAL 3.5
10. Rodríguez • ANA 3.4

Sit. Wins Saved (WPA/LI)

<strong>Situational Wins (WPA/LI)</strong><br>It is the sum of WPA divided by the leverage index for each play.<br>WPA depends greatly on the context of the at bats.<br>This stat does not.

1. Santana • MIN 6.3
2. Schilling • BOS 4.3
3. Radke • MIN 2.9
4. García • 2TM 2.9
5. Gordon • NYY 2.7
6. Rodríguez • ANA 2.5
7. Martínez • BOS 2.4
8. Escobar • ANA 2.4
9. Ryan • BAL 2.3
10. Buehrle • CHW 2.2

Championship WPA (cWPA)

<strong>Championship Win Probability Added by Pitcher</strong><br>Given average teams, this is the change in probability of winning the World Series, displayed in percentage points.<br>See <a href='https://www.baseball-reference.com/about/wpa.shtml'>Win Expectancy explainer</a> for details.

1. Nathan • MIN 4.4
2. Rodríguez • ANA 4.2
3. Schilling • BOS 3.8
4. Cordero • TEX 3.8
5. Santana • MIN 3.4
6. Martínez • BOS 3.4
7. Shields • ANA 3.3
8. Percival • ANA 3.1
9. Harden • OAK 2.9
10. Foulke • BOS 2.8

Base-Out Wins Saved (REW)

<strong>Base-Out Wins Saved</strong><br>This is the number of wins above average the player was worth by their performance<br>measured by the 24 base-out situations.

1. Santana • MIN 6.5
2. Schilling • BOS 4.8
3. Radke • MIN 3.7
4. López • BAL 3.1
5. Gordon • NYY 3.1
6. Ryan • BAL 2.8
7. Rodríguez • ANA 2.8
8. Martínez • BOS 2.7
9. Escobar • ANA 2.7
10. Nathan • MIN 2.7
Rivera • NYY 2.7

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 rate stats, generally a minimum of 3.1 Plate Appearances/Team Game (batting), 1.0 IP/Team Game (pitching), 0.67 Gm and Chances/Team Game (fielding), 0.2 SB att/Team Game (catchers), 0.1 SB att/Team Game (baserunners only since 1951), and 0.1 decision/Team Game (W-L%) is needed for single-season leaderboards. For pitcher fielding the minimums are reduced by a third. For LF, CF, RF fielding stats, we only have reliable data since 1898, so all leaders are since 1898. Explanation of min. requirements