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. Rodriguez • NYY 9.4
2. Roberts • BAL 7.3
3. Teixeira • TEX 7.2
4. Santana • MIN 7.2
5. Sizemore • CLE 6.6
6. Tejada • BAL 5.9
7. Guerrero • LAA 5.7
8. Johnson • NYY 5.7
9. Halladay • TOR 5.5
10. Hafner • CLE 5.4

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 7.2
2. Johnson • NYY 5.8
3. Halladay • TOR 5.5
4. Buehrle • CHW 4.8
5. Rogers • TEX 4.8
6. Garland • CHW 4.6
7. Wakefield • BOS 4.5
8. Lackey • LAA 4.3
Washburn • LAA 4.3
10. Rivera • NYY 4.0

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. Millwood • CLE 2.86
2. Santana • MIN 2.87
3. Buehrle • CHW 3.12
4. Washburn • LAA 3.20
5. Silva • MIN 3.44
6. Lackey • LAA 3.44
7. Rogers • TEX 3.46
8. Colón • LAA 3.48
9. Garland • CHW 3.50
10. Blanton • OAK 3.53

Wins

Wins

1. Colón • LAA 21
2. Garland • CHW 18
Lee • CLE 18
4. Johnson • NYY 17
5. Buehrle • CHW 16
Santana • MIN 16
Wakefield • BOS 16
8. Contreras • CHW 15
López • BAL 15
Sabathia • CLE 15
Wells • BOS 15
Westbrook • CLE 15

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. Lee • CLE .783
2. Halladay • TOR .750
3. Lackey • LAA .737
4. Colón • LAA .724
5. Crain • MIN .706
6. Santana • MIN .696
7. Clement • BOS .684
8. Wells • BOS .682
Contreras • CHW .682
10. Johnson • NYY .680

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 0.971
2. Johnson • NYY 1.126
3. Colón • LAA 1.159
4. Garland • CHW 1.172
5. Silva • MIN 1.173
6. Radke • MIN 1.181
7. Buehrle • CHW 1.183
8. Byrd • LAA 1.194
9. Zito • OAK 1.200
10. Blanton • OAK 1.217

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 6.993
2. Zito • OAK 7.292
3. Contreras • CHW 7.783
4. Blanton • OAK 7.957
5. Johnson • NYY 8.256
6. Kazmir • TBD 8.323
7. Wakefield • BOS 8.388
8. Sabathia • CLE 8.466
9. Chen • BAL 8.529
10. Millwood • CLE 8.531

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. Silva • MIN 0.430
2. Wells • BOS 1.027
3. Radke • MIN 1.032
4. Byrd • LAA 1.233
5. Towers • TOR 1.251
6. Buehrle • CHW 1.521
7. Colón • LAA 1.738
8. Santana • MIN 1.748
9. Johnson • NYY 1.874
10. Garland • CHW 1.914

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 9.246
2. Lackey • LAA 8.569
3. Kazmir • TBD 8.419
4. Johnson • NYY 8.415
5. Young • TEX 7.488
6. Sabathia • CLE 7.368
7. Mussina • NYY 7.113
8. Fossum • TBD 7.082
9. Bonderman • DET 6.905
10. Clement • BOS 6.880

Games Played

Games Played or Pitched

1. Timlin • BOS 81
2. Schoeneweis • TOR 80
3. Gordon • NYY 79
Howry • CLE 79
5. Shields • LAA 78
6. Crain • MIN 75
Rincón • MIN 75
8. Williams • BAL 72
9. Batista • TOR 71
Rivera • NYY 71

Saves

Saves

1. Wickman • CLE 45
Rodríguez • LAA 45
3. Rivera • NYY 43
Nathan • MIN 43
5. Báez • TBD 41
6. Cordero • TEX 37
7. Ryan • BAL 36
Guardado • SEA 36
9. Hermanson • CHW 34
10. Batista • TOR 31

Innings Pitched

Innings Pitched

1. Buehrle • CHW 236.2
2. Santana • MIN 231.2
3. Zito • OAK 228.1
4. García • CHW 228.0
5. Johnson • NYY 225.2
6. Wakefield • BOS 225.1
7. Colón • LAA 222.2
8. Garland • CHW 221.0
9. Haren • OAK 217.0
10. Westbrook • CLE 210.2

Strikeouts

Strikeouts

1. Santana • MIN 238
2. Johnson • NYY 211
3. Lackey • LAA 199
4. Kazmir • TBD 174
5. Zito • OAK 171
6. Haren • OAK 163
7. Sabathia • CLE 161
8. Cabrera • BAL 157
Colón • LAA 157
10. Contreras • CHW 154

Games Started

Games Started

1. López • BAL 35
Zito • OAK 35
3. Chacín • TOR 34
Haren • OAK 34
Johnson • NYY 34
Maroth • DET 34
Westbrook • CLE 34
8. Blanton • OAK 33
Buehrle • CHW 33
Colón • LAA 33
García • CHW 33
Greinke • KCR 33
Johnson • DET 33
Lackey • LAA 33
Santana • MIN 33
Towers • TOR 33
Wakefield • BOS 33

Complete Games

Complete Game

1. Halladay • TOR 5
2. Bonderman • DET 4
Johnson • NYY 4
4. Haren • OAK 3
Garland • CHW 3
Radke • MIN 3
Santana • MIN 3
Wakefield • BOS 3
Buehrle • CHW 3
10. Silva • MIN 2
Towers • TOR 2
Saarloos • OAK 2
Robertson • DET 2
Piñeiro • SEA 2
Mussina • NYY 2
Wells • BOS 2
Blanton • OAK 2
Westbrook • CLE 2
Bush • TOR 2
Byrd • LAA 2
Greinke • KCR 2
Harden • OAK 2
Franklin • SEA 2
Colón • LAA 2
García • CHW 2

Shutouts

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

1. Garland • CHW 3
2. Halladay • TOR 2
Mussina • NYY 2
Santana • MIN 2
5. Byrd • LAA 1
Franklin • SEA 1
Harden • OAK 1
Mays • MIN 1
Pavano • NYY 1
Buehrle • CHW 1
Rogers • TEX 1
Saarloos • OAK 1
Santana • LAA 1
Sele • SEA 1
Small • NYY 1
Towers • TOR 1
Washburn • LAA 1
Radke • MIN 1

Home Runs

Home Runs Hit/Allowed

1. Wakefield • BOS 35
2. Chen • BAL 33
Radke • MIN 33
4. Elarton • CLE 32
Johnson • NYY 32
6. Lima • KCR 31
7. Maroth • DET 30
8. Waechter • TBD 29
9. Franklin • SEA 28
López • BAL 28
Robertson • DET 28

Bases on Balls

Bases on Balls/Walks

1. Kazmir • TBD 100
2. Zito • OAK 89
3. Cabrera • BAL 87
4. Contreras • CHW 75
5. Meche • SEA 72
6. Lackey • LAA 71
7. Chacín • TOR 70
Hernández • KCR 70
9. Clement • BOS 68
Wakefield • BOS 68

Hits

Hits/Hits Allowed

1. Buehrle • CHW 240
2. Towers • TOR 237
3. Maroth • DET 235
4. Greinke • KCR 233
Johnson • DET 233
6. López • BAL 232
7. Hendrickson • TBD 227
8. García • CHW 225
Moyer • SEA 225
10. Piñeiro • SEA 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. Silva • MIN 7.889
2. Santana • MIN 5.289
3. Wells • BOS 5.095
4. Radke • MIN 5.087
5. Johnson • NYY 4.489
6. Towers • TOR 3.862
7. Buehrle • CHW 3.725
8. Colón • LAA 3.651
9. Byrd • LAA 3.643
10. Haren • OAK 3.075

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. Lackey • LAA 0.560
2. Kazmir • TBD 0.581
3. Rogers • TEX 0.691
4. Buehrle • CHW 0.761
5. Westbrook • CLE 0.812
6. Clement • BOS 0.848
7. Santana • MIN 0.855
8. Sabathia • CLE 0.869
9. Chacín • TOR 0.887
10. Millwood • CLE 0.938

Losses

Losses

1. Greinke • KCR 17
2. Lima • KCR 16
Robertson • DET 16
4. Franklin • SEA 15
Westbrook • CLE 15
6. Hernández • KCR 14
Maroth • DET 14
8. Bonderman • DET 13
Cabrera • BAL 13
Johnson • DET 13
Lohse • MIN 13
Zito • OAK 13

Earned Runs

Earned Runs Allowed

1. Lima • KCR 131
2. Greinke • KCR 118
Piñeiro • SEA 118
4. Hendrickson • TBD 117
5. López • BAL 114
6. Maroth • DET 110
7. Franklin • SEA 108
8. Johnson • DET 106
9. Westbrook • CLE 105
10. Wakefield • BOS 104

Wild Pitches

Wild Pitches

1. Contreras • CHW 20
García • CHW 20
3. Lackey • LAA 18
4. Johnson • DET 17
5. Clement • BOS 13
6. Shields • LAA 12
7. Julio • BAL 10
Ponson • BAL 10
9. Cabrera • BAL 9
10. Burgos • KCR 8
Fossum • TBD 8
Rodríguez • LAA 8
Santana • MIN 8
Wakefield • BOS 8

Hit By Pitch

Times Hit by a Pitch.

1. Fossum • TBD 18
2. Clement • BOS 16
3. Arroyo • BOS 14
4. Bush • TOR 13
Greinke • KCR 13
Zito • OAK 13
7. Hernández • CHW 12
Johnson • NYY 12
9. Cabrera • BAL 11
Lackey • LAA 11
Saarloos • OAK 11
Wakefield • BOS 11

Batters Faced

Batters Faced

1. Buehrle • CHW 971
2. Zito • OAK 953
3. García • CHW 943
Wakefield • BOS 943
5. Johnson • NYY 920
6. López • BAL 918
7. Santana • MIN 910
8. Colón • LAA 906
9. Garland • CHW 901
10. Haren • OAK 897

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 67
2. Báez • TBD 64
3. Batista • TOR 62
4. Ryan • BAL 61
5. Cordero • TEX 60
6. Nathan • MIN 58
Rodríguez • LAA 58
8. Guardado • SEA 55
Wickman • CLE 55
10. MacDougal • KCR 53

Adjusted ERA+

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

1. Santana • MIN 155
2. Millwood • CLE 147
3. Buehrle • CHW 144
4. Rogers • TEX 133
5. Washburn • LAA 133
6. Silva • MIN 130
7. Garland • CHW 128
8. Contreras • CHW 125
9. Blanton • OAK 124
10. Lackey • LAA 123

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 2.80
2. Lackey • LAA 3.10
3. Buehrle • CHW 3.42
4. Sabathia • CLE 3.69
5. Millwood • CLE 3.73
6. Colón • LAA 3.75
7. Kazmir • TBD 3.76
8. Johnson • NYY 3.78
9. Lee • CLE 3.79
10. Young • TEX 3.80

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 41
2. Halladay • TOR 33
3. Buehrle • CHW 31
4. Millwood • CLE 27
5. Harden • OAK 25
6. Garland • CHW 24
7. Rivera • NYY 23
8. Street • OAK 23
9. Washburn • LAA 22
10. Rogers • TEX 21

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 4.3
2. Halladay • TOR 3.5
3. Buehrle • CHW 3.2
4. Millwood • CLE 2.8
5. Harden • OAK 2.6
6. Garland • CHW 2.4
7. Rivera • NYY 2.3
8. Washburn • LAA 2.3
9. Street • OAK 2.3
10. Rogers • TEX 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 45.11
2. Halladay • TOR 37.02
3. Harden • OAK 28.82
4. Buehrle • CHW 28.16
5. Millwood • CLE 26.40
6. Garland • CHW 26.38
7. Washburn • LAA 25.16
8. Politte • CHW 25.05
9. Rivera • NYY 24.88
10. Colón • LAA 24.37

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. Halladay • TOR 4.6
2. Santana • MIN 4.4
3. Street • OAK 3.8
4. Politte • CHW 3.5
5. Rodríguez • LAA 3.5
6. Rivera • NYY 3.2
7. Buehrle • CHW 3.0
8. Crain • MIN 3.0
9. Garland • CHW 3.0
10. Colón • LAA 3.0

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 4.8
2. Halladay • TOR 3.5
3. Buehrle • CHW 3.1
4. Harden • OAK 3.0
5. Rivera • NYY 2.4
6. Zito • OAK 2.3
7. Garland • CHW 2.2
8. Street • OAK 2.2
9. Contreras • CHW 2.2
10. Shields • LAA 2.1

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. Rivera • NYY 4.1
2. Street • OAK 3.9
3. Chacón • NYY 3.3
4. Rodríguez • LAA 3.1
5. Johnson • NYY 3.0
6. Gordon • NYY 3.0
7. Wickman • CLE 2.9
8. Colón • LAA 2.8
9. Halladay • TOR 2.8
10. Millwood • CLE 2.7

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 4.7
2. Halladay • TOR 4.0
3. Harden • OAK 3.0
4. Buehrle • CHW 2.8
5. Millwood • CLE 2.8
6. Garland • CHW 2.6
7. Washburn • LAA 2.6
8. Colón • LAA 2.5
9. Rivera • NYY 2.5
10. Politte • CHW 2.5

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