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 • WSH 11.2
2. Ruth • BOS 10.4
3. Speaker • CLE 8.9
4. Cobb • DET 8.0
5. Jackson • CHW 7.1
6. Collins • CHW 7.0
7. Coveleski • DET 7.0
8. Shawkey • NYY 6.7
9. Mays • BOS 5.6
10. Strunk • PHA 5.6

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 • WSH 10.3
2. Ruth • BOS 8.8
3. Coveleski • DET 6.9
4. Shawkey • NYY 6.9
5. Bush • PHA 5.4
6. Leonard • BOS 5.2
7. Weilman • SLB 5.1
8. Harper • WSH 5.0
9. Mays • BOS 4.8
10. Russell • CHW 3.9

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. Ruth • BOS 1.75
2. Cicotte • CHW 1.78
3. Johnson • WSH 1.90
4. Coveleski • DET 1.97
5. Faber • CHW 2.02
6. Cullop • NYY 2.05
7. Weilman • SLB 2.15
8. Shawkey • NYY 2.21
9. Mogridge • NYY 2.31
10. Plank • SLB 2.33

Wins

Wins

1. Johnson • WSH 25
2. Shawkey • NYY 24
3. Ruth • BOS 23
4. Coveleski • DET 21
5. Dauss • DET 19
6. Russell • CHW 18
Leonard • BOS 18
Mays • BOS 18
9. Weilman • SLB 17
Gallia • WSH 17
Faber • CHW 17

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. Cullop • NYY .684
2. Cicotte • CHW .682
3. Foster • BOS .667
Morton • CLE .667
5. Ruth • BOS .657
6. Coveleski • DET .656
7. Faber • CHW .654
8. Williams • CHW .650
9. Shawkey • NYY .632
10. Russell • CHW .621

Walks & Hits per IP

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

1. Russell • CHW 0.942
2. Johnson • WSH 1.006
3. Shawkey • NYY 1.030
4. Coveleski • DET 1.051
5. Ruth • BOS 1.075
6. Cullop • NYY 1.096
7. Faber • CHW 1.110
8. Cicotte • CHW 1.112
9. Mogridge • NYY 1.125
10. Leonard • BOS 1.131

Hits per 9 IP

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

1. Ruth • BOS 6.395
2. Shawkey • NYY 6.636
3. Cicotte • CHW 6.642
4. Bush • PHA 6.970
5. Russell • CHW 7.048
6. Johnson • WSH 7.060
7. Dubuc • DET 7.080
8. Groom • SLB 7.206
9. Russell • NYY 7.249
10. Faber • CHW 7.320

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. Russell • CHW 1.430
2. Cullop • NYY 1.725
3. Coveleski • DET 1.748
4. Shore • BOS 1.954
5. Johnson • WSH 1.996
6. Mogridge • NYY 2.080
7. Leonard • BOS 2.168
8. Bagby • CLE 2.211
9. Coveleski • CLE 2.250
10. Weilman • SLB 2.478

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 • WSH 5.551
2. Williams • CHW 5.536
3. Russell • NYY 5.463
4. Harper • WSH 5.371
5. Myers • PHA 5.200
6. Bush • PHA 4.929
7. Leonard • BOS 4.730
8. Ruth • BOS 4.727
9. Mitchell • 2TM 4.412
10. Cicotte • CHW 4.380

Games Played

Games Played or Pitched

1. Davenport • SLB 59
2. Russell • CHW 56
3. Shawkey • NYY 53
4. Gallia • WSH 49
5. Bagby • CLE 48
Johnson • WSH 48
Leonard • BOS 48
8. Boland • DET 46
Weilman • SLB 46
10. Coveleski • CLE 45

Saves

Saves

1. Shawkey • NYY 8
2. Russell • NYY 6
Leonard • BOS 6
4. Bagby • CLE 5
Cicotte • CHW 5
6. Groom • SLB 4
Dauss • DET 4
8. Plank • SLB 3
Russell • CHW 3
Mays • BOS 3
Scott • CHW 3
Boland • DET 3
Coveleski • CLE 3

Innings Pitched

Innings Pitched

1. Johnson • WSH 369.2
2. Coveleski • DET 324.1
3. Ruth • BOS 323.2
4. Myers • PHA 315.0
5. Davenport • SLB 290.2
6. Bush • PHA 286.2
7. Gallia • WSH 283.2
8. Shawkey • NYY 276.2
9. Weilman • SLB 276.0
10. Leonard • BOS 274.0

Strikeouts

Strikeouts

1. Johnson • WSH 228
2. Myers • PHA 182
3. Ruth • BOS 170
4. Bush • PHA 157
5. Harper • WSH 149
6. Leonard • BOS 144
7. Williams • CHW 138
8. Davenport • SLB 129
9. Shawkey • NYY 122
10. Gallia • WSH 120

Games Started

Games Started

1. Ruth • BOS 40
2. Coveleski • DET 39
3. Johnson • WSH 38
4. Myers • PHA 35
Leonard • BOS 35
6. Harper • WSH 34
7. Bush • PHA 33
8. Weilman • SLB 31
Davenport • SLB 31
Gallia • WSH 31

Complete Games

Complete Game

1. Johnson • WSH 36
2. Myers • PHA 31
3. Bush • PHA 25
4. Ruth • BOS 23
5. Coveleski • DET 22
6. Shawkey • NYY 21
7. Weilman • SLB 19
8. Dauss • DET 18
9. Plank • SLB 17
Leonard • BOS 17

Shutouts

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

1. Ruth • BOS 9
2. Bush • PHA 8
3. Leonard • BOS 6
4. Russell • CHW 5
5. Benz • CHW 4
Shawkey • NYY 4
7. Johnson • WSH 3
Bagby • CLE 3
Foster • BOS 3
Faber • CHW 3
Plank • SLB 3
Coveleski • DET 3
Shore • BOS 3

Home Runs

Home Runs Hit/Allowed

1. Russell • NYY 8
2. Myers • PHA 7
3. Leonard • BOS 6
Caldwell • NYY 6
Coveleski • DET 6
Coveleski • CLE 6
7. Williams • CHW 5
8. Ayers • WSH 4
Keating • NYY 4
Harper • WSH 4
Shawkey • NYY 4
Fisher • NYY 4
Davenport • SLB 4
Cullop • NYY 4
Williams • PHA 4

Bases on Balls

Bases on Balls/Walks

1. Myers • PHA 168
2. Bush • PHA 130
3. Ruth • BOS 118
4. Harper • WSH 101
5. Davenport • SLB 100
6. Gallia • WSH 99
7. Groom • SLB 98
8. Nabors • PHA 95
9. Sheehan • PHA 94
10. Dauss • DET 90

Hits

Hits/Hits Allowed

1. Johnson • WSH 290
2. Myers • PHA 280
3. Coveleski • DET 278
Gallia • WSH 278
5. Davenport • SLB 267
6. Bagby • CLE 253
7. Coveleski • CLE 247
8. Leonard • BOS 244
9. Weilman • SLB 237
10. Ruth • BOS 230

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 • WSH 2.780
2. Russell • CHW 2.667
3. Cullop • NYY 2.406
4. Leonard • BOS 2.182
5. Williams • CHW 2.123
6. Coveleski • DET 1.714
7. Shawkey • NYY 1.506
8. Harper • WSH 1.475
9. Mogridge • NYY 1.467
10. Ruth • BOS 1.441

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. Ruth • BOS 0.000
Johnson • WSH 0.000
Foster • BOS 0.000
4. Russell • CHW 0.034
5. Shore • BOS 0.040
6. Groom • SLB 0.041
7. Faber • CHW 0.044
8. Boehling • 2TM 0.045
9. Cicotte • CHW 0.048
10. Dubuc • DET 0.053

Losses

Losses

1. Bush • PHA 24
2. Myers • PHA 23
3. Nabors • PHA 20
Johnson • WSH 20
5. Weilman • SLB 18
6. Bagby • CLE 17
7. Sheehan • PHA 16
8. Boehling • 2TM 15
Plank • SLB 15
10. Shawkey • NYY 14
Scott • CHW 14

Earned Runs

Earned Runs Allowed

1. Myers • PHA 128
2. Davenport • SLB 92
3. Coveleski • CLE 88
4. Gallia • WSH 87
5. Dauss • DET 85
6. Bush • PHA 82
Nabors • PHA 82
8. Bagby • CLE 79
9. Johnson • WSH 78
10. Sheehan • PHA 77

Wild Pitches

Wild Pitches

1. Bush • PHA 15
2. Myers • PHA 13
3. Harper • WSH 9
Johnson • WSH 9
5. Gallia • WSH 8
Dauss • DET 8
Leonard • BOS 8
8. Bagby • CLE 7
Sheehan • PHA 7
Cunningham • DET 7

Hit By Pitch

Times Hit by a Pitch.

1. Dauss • DET 16
2. Myers • PHA 14
3. James • DET 11
Coveleski • DET 11
5. Johnson • WSH 9
Mays • BOS 9
7. Gallia • WSH 8
Harper • WSH 8
Davenport • SLB 8
Leonard • BOS 8
Caldwell • NYY 8
Ruth • BOS 8
Weilman • SLB 8
Williams • CHW 8
Bagby • CLE 8

Batters Faced

Batters Faced

1. Johnson • WSH 1,410
2. Myers • PHA 1,310
3. Ruth • BOS 1,272
4. Coveleski • DET 1,248
5. Gallia • WSH 1,151
6. Davenport • SLB 1,149
7. Bush • PHA 1,145
8. Bagby • CLE 1,083
9. Weilman • SLB 1,065
10. Shawkey • NYY 1,064

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. Shawkey • NYY 24
2. Bagby • CLE 19
3. Davenport • SLB 18
4. Dubuc • DET 16
Russell • CHW 16
6. Ayers • WSH 15
Gould • CLE 15
Gallia • WSH 15
Sheehan • PHA 15
Cicotte • CHW 15

Adjusted ERA+

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

1. Ruth • BOS 158
2. Cicotte • CHW 156
3. Johnson • WSH 147
4. Coveleski • DET 145
5. Cullop • NYY 142
6. Faber • CHW 138
7. Shawkey • NYY 132
8. Weilman • SLB 126
9. Mogridge • NYY 126
10. Leonard • BOS 117

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 • WSH 1.82
2. Russell • CHW 2.01
3. Cullop • NYY 2.33
4. Williams • CHW 2.35
5. Leonard • BOS 2.36
6. Ruth • BOS 2.43
7. Faber • CHW 2.50
8. Shore • BOS 2.53
9. Cicotte • CHW 2.55
10. Shawkey • NYY 2.57

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. Ruth • BOS 37
2. Johnson • WSH 36
3. Coveleski • DET 27
4. Shawkey • NYY 25
5. Cicotte • CHW 18
6. Weilman • SLB 16
7. Leonard • BOS 15
8. Faber • CHW 15
9. Mays • BOS 13
10. Benz • CHW 13

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. Ruth • BOS 4.4
2. Johnson • WSH 4.2
3. Coveleski • DET 3.1
4. Shawkey • NYY 2.8
5. Cicotte • CHW 2.1
6. Weilman • SLB 1.9
7. Leonard • BOS 1.7
8. Faber • CHW 1.7
9. Benz • CHW 1.5
Mays • BOS 1.5

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. Ruth • BOS 53.57
2. Johnson • WSH 43.88
3. Shawkey • NYY 38.10
4. Russell • CHW 28.83
5. Coveleski • DET 27.01
6. Mays • BOS 23.99
7. Leonard • BOS 21.81
8. Weilman • SLB 20.13
9. Cicotte • CHW 18.84
10. Plank • SLB 18.06

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. Shawkey • NYY 6.4
2. Ruth • BOS 5.7
3. Johnson • WSH 5.6
4. Coveleski • DET 4.7
5. Cicotte • CHW 3.8
6. Leonard • BOS 3.5
7. Mays • BOS 2.8
8. Koob • SLB 2.8
9. Harper • WSH 2.6
10. Shore • BOS 2.6

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 • WSH 6.4
2. Ruth • BOS 5.7
3. Shawkey • NYY 5.0
4. Russell • CHW 4.0
5. Mays • BOS 3.2
6. Benz • CHW 2.7
7. Coveleski • DET 2.7
8. Weilman • SLB 2.5
9. Plank • SLB 2.5
10. Leonard • BOS 2.4

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. Ruth • BOS 22.7
2. Cicotte • CHW 12.4
3. Shawkey • NYY 11.8
4. Shore • BOS 11.0
5. Mays • BOS 9.5
6. Foster • BOS 7.9
7. Coveleski • DET 7.5
8. Leonard • BOS 7.4
9. Johnson • WSH 7.2
10. Cullop • NYY 5.2

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. Ruth • BOS 6.6
2. Johnson • WSH 5.2
3. Shawkey • NYY 4.4
4. Russell • CHW 3.3
5. Coveleski • DET 3.1
6. Mays • BOS 2.8
7. Leonard • BOS 2.5
8. Weilman • SLB 2.4
9. Cicotte • CHW 2.2
10. Plank • SLB 2.1

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