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. Clemens • BOS 8.7
2. Mussina • BAL 8.2
3. Appier • KCR 8.0
4. Puckett • MIN 7.1
5. Thomas • CHW 7.0
6. Alomar • TOR 6.6
7. Lofton • CLE 6.6
8. Mack • MIN 6.5
9. Martínez • SEA 6.5
10. McGwire • OAK 6.5

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. Clemens • BOS 8.7
2. Mussina • BAL 8.2
3. Appier • KCR 8.0
4. Viola • BOS 6.2
5. Nagy • CLE 6.0
6. Perez • NYY 5.9
7. Abbott • CAL 5.7
8. Guzmán • TOR 5.5
9. McDowell • CHW 5.3
10. Fleming • SEA 5.1

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. Clemens • BOS 2.41
2. Appier • KCR 2.46
3. Mussina • BAL 2.54
4. Guzmán • TOR 2.64
5. Abbott • CAL 2.77
6. Perez • NYY 2.87
7. Nagy • CLE 2.96
8. McDowell • CHW 3.18
9. Wegman • MIL 3.20
10. Smiley • MIN 3.21

Wins

Wins

1. Brown • TEX 21
Morris • TOR 21
3. McDowell • CHW 20
4. Clemens • BOS 18
Mussina • BAL 18
6. Fleming • SEA 17
Moore • OAK 17
Nagy • CLE 17
Navarro • MIL 17
10. Bosio • MIL 16
Guzmán • TEX 16
Guzmán • TOR 16
Smiley • MIN 16
Sutcliffe • BAL 16
Tapani • MIN 16

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. Mussina • BAL .783
2. Morris • TOR .778
3. Guzmán • TOR .762
4. Bosio • MIL .727
5. McDowell • CHW .667
6. Brown • TEX .656
7. Appier • KCR .652
8. Smiley • MIN .640
9. Nagy • CLE .630
Fleming • SEA .630

Walks & Hits per IP

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

1. Clemens • BOS 1.074
2. Mussina • BAL 1.079
3. Smiley • MIN 1.120
4. Appier • KCR 1.128
5. Guzmán • TOR 1.146
6. Bosio • MIL 1.154
7. Wegman • MIL 1.169
8. Navarro • MIL 1.171
9. Nagy • CLE 1.198
10. Key • TOR 1.218

Hits per 9 IP

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

1. Johnson • SEA 6.590
2. Guzmán • TOR 6.725
3. Appier • KCR 7.214
4. Clemens • BOS 7.407
5. Smiley • MIN 7.656
6. Perez • NYY 7.704
7. Stewart • OAK 7.901
8. Mussina • BAL 7.917
9. Viola • BOS 8.092
10. Langston • CAL 8.096

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. Bosio • MIL 1.712
2. Mussina • BAL 1.793
3. Wegman • MIL 1.892
4. Tapani • MIN 1.964
5. Gullickson • DET 2.030
6. Nagy • CLE 2.036
7. Clemens • BOS 2.262
8. Navarro • MIL 2.341
9. Fleming • SEA 2.365
10. Fernandez • CHW 2.398

Strikeouts per 9 IP

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

1. Johnson • SEA 10.312
2. Guzmán • TOR 8.220
3. Perez • NYY 7.922
4. Clemens • BOS 7.589
5. Guzmán • TEX 7.192
6. Langston • CAL 6.838
7. Appier • KCR 6.480
8. McDonald • BAL 6.264
9. Armstrong • CLE 6.156
10. McDowell • CHW 6.146

Games Played

Games Played or Pitched

1. Rogers • TEX 81
2. Ward • TOR 79
3. Olin • CLE 72
4. Lilliquist • CLE 71
5. Harris • BOS 70
6. Eckersley • OAK 69
7. Henry • MIL 68
Radinsky • CHW 68
9. Nelson • SEA 66
Parrett • OAK 66

Saves

Saves

1. Eckersley • OAK 51
2. Aguilera • MIN 41
3. Montgomery • KCR 39
4. Olson • BAL 36
5. Henke • TOR 34
6. Russell • 2TM 30
Farr • NYY 30
8. Henry • MIL 29
Olin • CLE 29
10. Reardon • BOS 27

Innings Pitched

Innings Pitched

1. Brown • TEX 265.2
2. Wegman • MIL 261.2
3. McDowell • CHW 260.2
4. Nagy • CLE 252.0
5. Perez • NYY 247.2
6. Clemens • BOS 246.2
7. Navarro • MIL 246.0
8. Mussina • BAL 241.0
Smiley • MIN 241.0
10. Morris • TOR 240.2

Strikeouts

Strikeouts

1. Johnson • SEA 241
2. Perez • NYY 218
3. Clemens • BOS 208
4. Guzmán • TEX 179
5. McDowell • CHW 178
6. Langston • CAL 174
7. Brown • TEX 173
8. Nagy • CLE 169
9. Guzmán • TOR 165
10. Smiley • MIN 163

Games Started

Games Started

1. Moore • OAK 36
Sutcliffe • BAL 36
3. Brown • TEX 35
McDonald • BAL 35
Viola • BOS 35
Wegman • MIL 35
7. Gullickson • DET 34
McCaskill • CHW 34
McDowell • CHW 34
Morris • TOR 34
Navarro • MIL 34
Smiley • MIN 34
Tapani • MIN 34

Complete Games

Complete Game

1. McDowell • CHW 13
2. Brown • TEX 11
Clemens • BOS 11
4. Perez • NYY 10
Nagy • CLE 10
6. Langston • CAL 9
7. Mussina • BAL 8
8. Wegman • MIL 7
Fleming • SEA 7
Abbott • CAL 7

Shutouts

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

1. Clemens • BOS 5
2. Mussina • BAL 4
Fleming • SEA 4
4. Navarro • MIL 3
Nagy • CLE 3
Darling • OAK 3
Erickson • MIN 3
8. Bosio • MIL 2
McDonald • BAL 2
Langston • CAL 2
Krueger • MIN 2
Key • TOR 2
Johnson • SEA 2
Smiley • MIN 2
Stottlemyre • TOR 2
Sutcliffe • BAL 2
Valera • CAL 2
Fernandez • CHW 2

Home Runs

Home Runs Hit/Allowed

1. Gullickson • DET 35
2. McDonald • BAL 32
3. Cook • CLE 29
4. Sanderson • NYY 28
Wegman • MIL 28
6. Bones • MIL 27
7. Stewart • OAK 25
8. Finley • CAL 24
Key • TOR 24
10. Armstrong • CLE 23

Bases on Balls

Bases on Balls/Walks

1. Johnson • SEA 144
2. Witt • 2TM 114
3. Moore • OAK 103
4. Finley • CAL 98
5. McCaskill • CHW 95
6. Perez • NYY 93
7. Tanana • DET 90
8. Viola • BOS 89
9. Leary • 2TM 87
10. Erickson • MIN 83

Hits

Hits/Hits Allowed

1. Brown • TEX 262
2. Sutcliffe • BAL 251
Wegman • MIL 251
4. McDowell • CHW 247
5. Nagy • CLE 245
6. Guzmán • TEX 229
Moore • OAK 229
8. Gullickson • DET 228
9. Tapani • MIN 226
10. Fleming • SEA 225

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. Clemens • BOS 3.355
2. Nagy • CLE 2.965
3. Tapani • MIN 2.875
4. Bosio • MIL 2.727
5. Mussina • BAL 2.708
6. Smiley • MIN 2.508
7. Guzmán • TEX 2.452
8. McDowell • CHW 2.373
9. Langston • CAL 2.351
10. Perez • NYY 2.344

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. Guzmán • TOR 0.299
2. Brown • TEX 0.373
3. Nagy • CLE 0.393
4. Clemens • BOS 0.401
5. Appier • KCR 0.432
6. McCaskill • CHW 0.474
7. Viola • BOS 0.492
8. Abbott • CAL 0.512
9. Navarro • MIL 0.512
10. Fleming • SEA 0.512

Losses

Losses

1. Hanson • SEA 17
2. Perez • NYY 16
3. Abbott • CAL 15
Armstrong • CLE 15
Sutcliffe • BAL 15
6. Johnson • SEA 14
Kamieniecki • NYY 14
Langston • CAL 14
Wegman • MIL 14
Witt • 2TM 14

Earned Runs

Earned Runs Allowed

1. Sutcliffe • BAL 118
2. Morris • TOR 108
3. Gullickson • DET 107
McDonald • BAL 107
5. Sanderson • NYY 106
6. Moore • OAK 102
7. Hanson • SEA 100
8. Brown • TEX 98
9. McCaskill • CHW 97
Tapani • MIN 97

Wild Pitches

Wild Pitches

1. Moore • OAK 22
2. Guzmán • TOR 14
3. Darling • OAK 13
Johnson • SEA 13
Parrett • OAK 13
Perez • NYY 13
7. Viola • BOS 12
8. Krueger • MIN 11
Tanana • DET 11
10. Hough • CHW 10
Jones • SEA 10

Hit By Pitch

Times Hit by a Pitch.

1. Johnson • SEA 18
2. Ryan • TEX 12
3. Brown • TEX 10
Morris • TOR 10
Stottlemyre • TOR 10
6. Bones • MIL 9
Clemens • BOS 9
McDonald • BAL 9
Wegman • MIL 9
Leary • 2TM 9

Batters Faced

Batters Faced

1. Brown • TEX 1,108
2. McDowell • CHW 1,079
Wegman • MIL 1,079
4. Nagy • CLE 1,018
Sutcliffe • BAL 1,018
6. Perez • NYY 1,013
7. Morris • TOR 1,005
8. Navarro • MIL 1,004
9. Viola • BOS 999
10. Clemens • BOS 989

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. Eckersley • OAK 65
2. Montgomery • KCR 62
Olin • CLE 62
4. Aguilera • MIN 61
5. Henry • MIL 56
Olson • BAL 56
7. Henneman • DET 53
8. Henke • TOR 50
9. Russell • 2TM 46
10. Farr • NYY 42

Adjusted ERA+

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

1. Clemens • BOS 174
2. Appier • KCR 164
3. Mussina • BAL 157
4. Guzmán • TOR 154
5. Abbott • CAL 143
6. Perez • NYY 136
7. Nagy • CLE 132
8. Smiley • MIN 126
9. McDowell • CHW 122
10. Viola • BOS 122

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. Clemens • BOS 2.54
2. Guzmán • TOR 2.60
3. Nagy • CLE 2.71
4. Appier • KCR 2.98
5. Brown • TEX 2.99
6. Perez • NYY 3.05
7. Langston • CAL 3.11
8. Mussina • BAL 3.19
9. Guzmán • TEX 3.20
10. Smiley • MIN 3.23

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. Clemens • BOS 43
2. Mussina • BAL 41
3. Appier • KCR 37
4. Guzmán • TOR 29
5. Abbott • CAL 27
6. Nagy • CLE 27
7. Perez • NYY 26
8. Eldred • MIL 24
9. McDowell • CHW 24
10. Smiley • MIN 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. Clemens • BOS 4.8
2. Mussina • BAL 4.5
3. Appier • KCR 4.1
4. Guzmán • TOR 3.1
5. Abbott • CAL 2.9
6. Nagy • CLE 2.9
7. Eldred • MIL 2.8
8. Perez • NYY 2.8
9. McDowell • CHW 2.5
10. Smiley • MIN 2.4

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. Mussina • BAL 44.75
2. Clemens • BOS 41.25
3. Appier • KCR 41.24
4. Guzmán • TOR 32.66
5. Nagy • CLE 31.75
6. McDowell • CHW 28.69
7. Eldred • MIL 28.61
8. Eckersley • OAK 26.72
9. Abbott • CAL 25.50
10. Smiley • MIN 24.29

Win Probability Added (WPA)

<strong>Win Probability Added by Pitcher</strong><br>Given average teams, this is the change in probability.<br>A change of +/- 1 would indicate one win added or lost.

1. Appier • KCR 4.8
2. Clemens • BOS 4.7
3. Mussina • BAL 4.6
4. Guzmán • TOR 4.6
5. Eckersley • OAK 4.6
6. Ward • TOR 3.6
7. Smiley • MIN 3.5
8. Eldred • MIL 3.4
9. Mills • BAL 3.0
10. Viola • BOS 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. Clemens • BOS 4.6
2. Mussina • BAL 3.9
3. Guzmán • TOR 3.6
4. Smiley • MIN 3.2
5. Appier • KCR 3.2
6. Nagy • CLE 2.9
7. Wegman • MIL 2.6
8. Abbott • CAL 2.5
9. Eldred • MIL 2.4
10. Navarro • MIL 2.3

Championship WPA (cWPA)

<strong>Championship Win Probability Added by Pitcher</strong><br>Given average teams, this is the change in probability, displayed in percentage points.<br>A change of +/- 100% would indicate one world series win added or lost.

1. Eckersley • OAK 7.1
2. Guzmán • TOR 6.6
3. Ward • TOR 6.0
4. Mussina • BAL 5.6
5. Henke • TOR 5.2
6. Mills • BAL 4.5
7. Morris • TOR 4.3
8. Frohwirth • BAL 4.2
9. Smiley • MIN 2.8
10. Sutcliffe • BAL 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. Mussina • BAL 4.9
2. Appier • KCR 4.5
3. Clemens • BOS 4.4
4. Guzmán • TOR 3.5
5. Nagy • CLE 3.4
6. Eldred • MIL 3.4
7. McDowell • CHW 3.1
8. Eckersley • OAK 2.9
9. Abbott • CAL 2.7
10. Perez • NYY 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 1898, so all leaders are since 1898. Explanation of min. requirements