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. Johnson • SEA 8.6
2. Valentin • BOS 8.3
3. Martínez • SEA 7.0
4. Cone • 2TM 7.0
5. Belle • CLE 7.0
6. Knoblauch • MIN 6.7
7. Salmon • CAL 6.6
8. Williams • NYY 6.4
9. Mussina • BAL 6.1
10. Thome • CLE 5.9

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. Johnson • SEA 8.6
2. Cone • 2TM 7.0
3. Mussina • BAL 6.1
4. Rogers • TEX 5.8
5. Leiter • TOR 5.7
Martínez • CLE 5.7
7. Wakefield • BOS 5.0
8. Wells • DET 4.6
9. Appier • KCR 4.6
10. Gubicza • KCR 4.4

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. Johnson • SEA 2.48
2. Wakefield • BOS 2.95
3. Martínez • CLE 3.08
4. Mussina • BAL 3.29
5. Rogers • TEX 3.38
6. Cone • 2TM 3.57
7. Brown • BAL 3.60
8. Leiter • TOR 3.64
9. Abbott • 2TM 3.70
10. Gubicza • KCR 3.75

Wins

Wins

1. Mussina • BAL 19
2. Johnson • SEA 18
Cone • 2TM 18
4. Rogers • TEX 17
5. Hershiser • CLE 16
Nagy • CLE 16
Wakefield • BOS 16
8. Appier • KCR 15
Finley • CAL 15
Hanson • BOS 15
Langston • CAL 15
McDowell • NYY 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. Johnson • SEA .900
2. Hanson • BOS .750
3. Nagy • CLE .727
Hershiser • CLE .727
5. Rogers • TEX .708
6. Martínez • CLE .706
7. Cone • 2TM .692
8. Langston • CAL .682
9. Mussina • BAL .679
10. Wakefield • BOS .667
Clemens • BOS .667
Stottlemyre • OAK .667

Walks & Hits per IP

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

1. Johnson • SEA 1.045
2. Mussina • BAL 1.069
3. Martínez • CLE 1.176
4. Brown • BAL 1.178
5. Wakefield • BOS 1.183
6. Appier • KCR 1.207
7. Hershiser • CLE 1.207
8. Cone • 2TM 1.234
9. Rogers • TEX 1.288
10. Fernandez • CHW 1.301

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 6.677
2. Appier • KCR 7.286
3. Wakefield • BOS 7.510
4. Mussina • BAL 7.592
5. Cone • 2TM 7.653
6. Leiter • TOR 7.967
7. Brown • BAL 8.095
8. Hershiser • CLE 8.122
9. Pavlik • TEX 8.170
10. Hitchcock • NYY 8.287

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. Mussina • BAL 2.030
2. Martínez • CLE 2.214
3. Radke • MIN 2.337
4. Brown • BAL 2.507
5. Gubicza • KCR 2.616
6. Johnson • SEA 2.729
7. Hershiser • CLE 2.743
8. Hanson • BOS 2.845
9. Fernandez • CHW 2.872
10. Langston • CAL 2.875

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 12.345
2. Stottlemyre • OAK 8.800
3. Finley • CAL 8.645
4. Appier • KCR 8.270
5. Leiter • TOR 7.525
6. Cone • 2TM 7.496
7. Nagy • CLE 7.028
8. Fernandez • CHW 7.026
9. Pavlik • TEX 6.997
10. Hanson • BOS 6.702

Games Played

Games Played or Pitched

1. Orosco • BAL 65
2. McDowell • TEX 64
3. Ayala • SEA 63
Belinda • BOS 63
Wickman • NYY 63
6. Mesa • CLE 62
Nelson • SEA 62
Patterson • CAL 62
Percival • CAL 62
10. Boever • DET 60
Hernández • CHW 60
Wetteland • NYY 60

Saves

Saves

1. Mesa • CLE 46
2. Smith • CAL 37
3. Hernández • CHW 32
Aguilera • 2TM 32
5. Montgomery • KCR 31
Wetteland • NYY 31
7. Eckersley • OAK 29
8. Jones • BAL 22
Fetters • MIL 22
10. Russell • TEX 20

Innings Pitched

Innings Pitched

1. Cone • 2TM 229.1
2. Mussina • BAL 221.2
3. McDowell • NYY 217.2
4. Johnson • SEA 214.1
5. Gubicza • KCR 213.1
6. Stottlemyre • OAK 209.2
7. Rogers • TEX 208.0
8. Fernandez • CHW 203.2
9. Finley • CAL 203.0
10. Sparks • MIL 202.0

Strikeouts

Strikeouts

1. Johnson • SEA 294
2. Stottlemyre • OAK 205
3. Finley • CAL 195
4. Cone • 2TM 191
5. Appier • KCR 185
6. Fernandez • CHW 159
7. Mussina • BAL 158
8. McDowell • NYY 157
9. Leiter • TOR 153
10. Pavlik • TEX 149

Games Started

Games Started

1. Gubicza • KCR 33
2. Finley • CAL 32
Mussina • BAL 32
4. Appier • KCR 31
Bones • MIL 31
Bosio • SEA 31
Gordon • KCR 31
Langston • CAL 31
Pavlik • TEX 31
Rogers • TEX 31
Stottlemyre • OAK 31
Erickson • 2TM 31

Complete Games

Complete Game

1. McDowell • NYY 8
2. Erickson • 2TM 7
Mussina • BAL 7
4. Johnson • SEA 6
Wakefield • BOS 6
Cone • 2TM 6
7. Fernandez • CHW 5
8. Hitchcock • NYY 4
Gross • TEX 4
Tewksbury • TEX 4
Abbott • 2TM 4
Appier • KCR 4

Shutouts

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

1. Mussina • BAL 4
2. Johnson • SEA 3
3. Martínez • CLE 2
Erickson • 2TM 2
Cone • 2TM 2
McDowell • NYY 2
Gubicza • KCR 2
Fernandez • CHW 2
9. Hershiser • CLE 1
Hitchcock • NYY 1
Johns • OAK 1
Langston • CAL 1
Leiter • TOR 1
Appier • KCR 1
Finley • CAL 1
Hanson • BOS 1
Ontiveros • OAK 1
Pavlik • TEX 1
Radke • MIN 1
Rogers • TEX 1
Tapani • MIN 1
Tewksbury • TEX 1
Wakefield • BOS 1
Abbott • 2TM 1
Brown • BAL 1
Bergman • DET 1
Nagy • CLE 1

Home Runs

Home Runs Hit/Allowed

1. Radke • MIN 32
2. Gross • TEX 27
3. Bones • MIL 26
Rogers • TEX 26
Stottlemyre • OAK 26
6. McDowell • NYY 25
Darwin • 2TM 25
8. Anderson • CAL 24
Hentgen • TOR 24
Moore • DET 24
Mussina • BAL 24
Cone • 2TM 24
Harkey • 2TM 24

Bases on Balls

Bases on Balls/Walks

1. Leiter • TOR 108
2. Bere • CHW 106
3. Álvarez • CHW 93
Finley • CAL 93
5. Hentgen • TOR 90
Pavlik • TEX 90
7. Gordon • KCR 89
Gross • TEX 89
9. Belcher • SEA 88
Cone • 2TM 88

Hits

Hits/Hits Allowed

1. Hentgen • TOR 236
2. Stottlemyre • OAK 228
3. Gubicza • KCR 222
4. Bones • MIL 218
5. Erickson • 2TM 213
6. Langston • CAL 212
7. Bosio • SEA 211
McDowell • NYY 211
9. Sparks • MIL 210
10. Abbott • 2TM 209

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. Johnson • SEA 4.523
2. Mussina • BAL 3.160
3. Stottlemyre • OAK 2.563
4. Fernandez • CHW 2.446
5. Brown • BAL 2.438
6. Hanson • BOS 2.356
7. Appier • KCR 2.313
8. Nagy • CLE 2.279
9. Langston • CAL 2.219
10. Hershiser • CLE 2.176

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. Johnson • SEA 0.504
2. Brown • BAL 0.522
3. Gordon • KCR 0.571
4. Appier • KCR 0.626
5. Abbott • 2TM 0.640
6. Leiter • TOR 0.738
7. Sparks • MIL 0.757
8. Pettitte • NYY 0.771
9. Martínez • CLE 0.818
10. Hanson • BOS 0.820

Losses

Losses

1. Bere • CHW 15
Gross • TEX 15
Moore • DET 15
4. Gubicza • KCR 14
Guzmán • TOR 14
Hentgen • TOR 14
Radke • MIN 14
8. Lira • DET 13
9. Belcher • SEA 12
Bones • MIL 12
Finley • CAL 12
Gordon • KCR 12

Earned Runs

Earned Runs Allowed

1. Hentgen • TOR 114
2. Gross • TEX 113
3. Moore • DET 111
4. Bere • CHW 110
5. Radke • MIN 107
6. Stottlemyre • OAK 106
7. Erickson • 2TM 105
8. Sparks • MIL 104
9. Bones • MIL 103
Langston • CAL 103

Wild Pitches

Wild Pitches

1. Leiter • TOR 14
2. Bergman • DET 13
Finley • CAL 13
4. Hurtado • TOR 11
Stottlemyre • OAK 11
Wakefield • BOS 11
Cone • 2TM 11
8. Bosio • SEA 10
McCaskill • CHW 10
Pavlik • TEX 10

Hit By Pitch

Times Hit by a Pitch.

1. Clemens • BOS 14
2. Martínez • CLE 12
3. Brown • BAL 9
Wakefield • BOS 9
5. Appier • KCR 8
Gross • TEX 8
Lira • DET 8
Roberson • MIL 8
9. Boskie • CAL 7
Finley • CAL 7
Scanlan • MIL 7

Batters Faced

Batters Faced

1. Cone • 2TM 954
2. McDowell • NYY 927
3. Stottlemyre • OAK 920
4. Hentgen • TOR 913
5. Gubicza • KCR 898
6. Mussina • BAL 882
7. Finley • CAL 880
8. Bones • MIL 877
Rogers • TEX 877
10. Sparks • MIL 875

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. Hernández • CHW 57
Mesa • CLE 57
3. Wetteland • NYY 56
4. Smith • CAL 51
Aguilera • 2TM 51
6. Ayala • SEA 50
7. Eckersley • OAK 48
8. Jones • BAL 47
9. Montgomery • KCR 46
10. Fetters • MIL 34
Stevens • MIN 34

Adjusted ERA+

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

1. Johnson • SEA 193
2. Wakefield • BOS 165
3. Martínez • CLE 152
4. Mussina • BAL 145
5. Rogers • TEX 144
6. Brown • BAL 133
7. Cone • 2TM 131
8. Leiter • TOR 130
9. Gubicza • KCR 127
10. Abbott • 2TM 124

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. Johnson • SEA 2.08
2. Appier • KCR 3.48
3. Brown • BAL 3.49
4. Fernandez • CHW 3.71
5. Hanson • BOS 3.76
6. Mussina • BAL 3.78
7. Finley • CAL 3.94
8. Stottlemyre • OAK 3.99
9. Pettitte • NYY 4.01
10. Cone • 2TM 4.03

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. Johnson • SEA 54
2. Wakefield • BOS 38
3. Mussina • BAL 37
4. Martínez • CLE 33
5. Rogers • TEX 32
6. Cone • 2TM 31
7. Mesa • CLE 26
8. Gubicza • KCR 24
9. Brown • BAL 23
10. Wells • DET 23

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. Johnson • SEA 5.5
2. Wakefield • BOS 3.8
3. Mussina • BAL 3.7
4. Martínez • CLE 3.3
5. Rogers • TEX 3.2
6. Cone • 2TM 3.0
7. Mesa • CLE 2.4
8. Gubicza • KCR 2.3
9. Brown • BAL 2.3
Wells • DET 2.3

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. Johnson • SEA 58.79
2. Mussina • BAL 44.70
3. Cone • 2TM 36.51
4. Martínez • CLE 35.74
5. Wakefield • BOS 34.83
6. Nelson • SEA 32.25
7. Appier • KCR 28.85
8. Mesa • CLE 28.73
9. Rogers • TEX 28.29
10. Brown • BAL 27.54

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. Johnson • SEA 6.5
2. Mesa • CLE 6.1
3. Mussina • BAL 4.5
4. Cone • 2TM 4.1
5. Belinda • BOS 3.8
6. Percival • CAL 3.6
7. Wakefield • BOS 2.9
8. Aguilera • 2TM 2.8
9. Rogers • TEX 2.8
10. Appier • KCR 2.8

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. Johnson • SEA 6.0
2. Mussina • BAL 4.6
3. Cone • 2TM 3.4
4. Martínez • CLE 3.3
5. Appier • KCR 3.2
6. Brown • BAL 3.1
7. Wakefield • BOS 2.6
8. Percival • CAL 2.4
9. Nelson • SEA 2.0
10. Mesa • CLE 1.9

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. Johnson • SEA 11.8
2. Cone • 2TM 3.7
3. Wakefield • BOS 3.4
4. Charlton • SEA 3.4
5. Percival • CAL 3.2
6. Hitchcock • NYY 2.8
7. McDowell • TEX 2.2
8. Mesa • CLE 2.2
9. Kamieniecki • NYY 2.1
10. Belinda • BOS 2.0

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. Johnson • SEA 6.1
2. Mussina • BAL 4.5
3. Cone • 2TM 3.7
4. Martínez • CLE 3.6
5. Wakefield • BOS 3.4
6. Nelson • SEA 3.1
7. Appier • KCR 2.8
8. Mesa • CLE 2.8
9. Rogers • TEX 2.7
10. Brown • BAL 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