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 11.0
2. Ruth • BOS 9.9
3. Cicotte • CHW 9.8
4. Coveleski • CLE 7.4
5. Veach • DET 6.8
6. Peckinpaugh • NYY 6.5
7. Shaw • WSH 6.3
8. Sisler • SLB 6.2
9. Sothoron • SLB 5.9
10. Jackson • CHW 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 10.8
2. Cicotte • CHW 9.7
3. Coveleski • CLE 7.0
4. Shaw • WSH 6.5
5. Sothoron • SLB 6.2
6. Williams • CHW 5.4
7. Boland • DET 5.0
8. Shocker • SLB 4.7
9. Mays • 2TM 4.2
10. Bagby • CLE 4.2

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 • WSH 1.49
2. Cicotte • CHW 1.82
3. Weilman • SLB 2.07
4. Mays • 2TM 2.10
5. Sothoron • SLB 2.20
6. Quinn • NYY 2.61
7. Coveleski • CLE 2.61
8. Thormahlen • NYY 2.62
9. Williams • CHW 2.64
10. Shocker • SLB 2.69

Wins

Wins

1. Cicotte • CHW 29
2. Coveleski • CLE 24
3. Williams • CHW 23
4. Dauss • DET 21
5. Sothoron • SLB 20
Shawkey • NYY 20
Johnson • WSH 20
8. Bagby • CLE 17
Shaw • WSH 17
Ehmke • DET 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. Cicotte • CHW .806
2. Caldwell • 2TM .706
3. Dauss • DET .700
4. Williams • CHW .676
5. Coveleski • CLE .667
Uhle • CLE .667
Pennock • BOS .667
8. Kerr • CHW .650
9. Shawkey • NYY .645
10. Ruth • BOS .643

Walks & Hits per IP

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

1. Johnson • WSH 0.985
2. Cicotte • CHW 0.995
3. Williams • CHW 1.088
4. Mays • 2TM 1.143
5. Thormahlen • NYY 1.145
6. Quinn • NYY 1.154
7. Shocker • SLB 1.175
8. Shawkey • NYY 1.186
9. Morton • CLE 1.188
10. Weilman • SLB 1.203

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 • WSH 7.285
2. Thormahlen • NYY 7.394
3. Shawkey • NYY 7.508
4. Cicotte • CHW 7.513
5. Mays • 2TM 7.680
6. Morton • CLE 7.819
7. Williams • CHW 8.030
8. Shaw • WSH 8.041
9. Weilman • SLB 8.088
10. Quinn • NYY 8.188

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. Cicotte • CHW 1.438
2. Johnson • WSH 1.581
3. Bagby • CLE 1.641
4. Williams • CHW 1.758
5. Coveleski • CLE 1.888
6. Pennock • BOS 1.973
7. Quinn • NYY 2.199
8. Dauss • DET 2.212
9. Shocker • SLB 2.346
10. Mogridge • NYY 2.450

Strikeouts per 9 IP

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

1. Erickson • 2TM 5.523
2. Russell • 2TM 4.797
3. Johnson • WSH 4.557
4. Kinney • PHA 4.308
5. Leonard • DET 4.224
6. Shawkey • NYY 4.202
7. Morton • CLE 3.910
8. Williams • CHW 3.788
9. Harper • WSH 3.764
10. Shaw • WSH 3.757

Games Played

Games Played or Pitched

1. Shaw • WSH 45
2. Russell • 2TM 44
3. Coveleski • CLE 43
Kinney • PHA 43
5. Shawkey • NYY 41
Williams • CHW 41
7. Cicotte • CHW 40
Sothoron • SLB 40
9. Johnson • WSH 39
Kerr • CHW 39

Saves

Saves

1. Shawkey • NYY 5
Russell • 2TM 5
Shaw • WSH 5
4. Coveleski • CLE 4
5. Sothoron • SLB 3
Bagby • CLE 3
7. Mays • 2TM 2
Johnson • WSH 2
Kinney • PHA 2
10. Boland • DET 1
Cicotte • CHW 1
Coumbe • CLE 1
Craft • WSH 1
Cunningham • DET 1
Danforth • CHW 1
Gallia • SLB 1
Jones • BOS 1
Kallio • DET 1
Myers • CLE 1
Perry • PHA 1
Ruth • BOS 1
Thormahlen • NYY 1
Williams • CHW 1
Wood • CLE 1
Ayers • 2TM 1
Thompson • 2TM 1
Love • DET 1

Innings Pitched

Innings Pitched

1. Cicotte • CHW 306.2
Shaw • WSH 306.2
3. Williams • CHW 297.0
4. Johnson • WSH 290.1
5. Coveleski • CLE 286.0
6. Sothoron • SLB 270.0
7. Quinn • NYY 266.0
Mays • 2TM 266.0
9. Shawkey • NYY 261.1
10. Dauss • DET 256.1

Strikeouts

Strikeouts

1. Johnson • WSH 147
2. Shaw • WSH 128
3. Williams • CHW 125
4. Shawkey • NYY 122
5. Coveleski • CLE 118
6. Russell • 2TM 113
7. Cicotte • CHW 110
8. Mays • 2TM 107
9. Sothoron • SLB 106
10. Leonard • DET 102

Games Started

Games Started

1. Williams • CHW 40
2. Shaw • WSH 37
3. Cicotte • CHW 35
4. Coveleski • CLE 34
5. Bagby • CLE 32
Dauss • DET 32
7. Harper • WSH 31
Quinn • NYY 31
Jones • BOS 31
Ehmke • DET 31

Complete Games

Complete Game

1. Cicotte • CHW 30
2. Johnson • WSH 27
Williams • CHW 27
4. Mays • 2TM 26
5. Coveleski • CLE 24
6. Shaw • WSH 23
7. Dauss • DET 22
Shawkey • NYY 22
9. Bagby • CLE 21
Jones • BOS 21
Sothoron • SLB 21

Shutouts

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

1. Johnson • WSH 7
2. Cicotte • CHW 5
Williams • CHW 5
Shocker • SLB 5
Pennock • BOS 5
Jones • BOS 5
7. Quinn • NYY 4
Leonard • DET 4
Coveleski • CLE 4
10. Mays • 2TM 3
Weilman • SLB 3
Mogridge • NYY 3
Morton • CLE 3
Sothoron • SLB 3
Shaw • WSH 3
Shawkey • NYY 3

Home Runs

Home Runs Hit/Allowed

1. Thormahlen • NYY 10
Gallia • SLB 10
3. Rogers • 2TM 9
Dauss • DET 9
5. Quinn • NYY 8
Johnson • PHA 8
7. Leonard • DET 7
Boland • DET 7
Kinney • PHA 7
Erickson • 2TM 7
Shawkey • NYY 7
Williams • CHW 7
Faber • CHW 7

Bases on Balls

Bases on Balls/Walks

1. Ehmke • DET 107
2. Shaw • WSH 101
3. Harper • WSH 97
4. Jones • BOS 95
5. Gallia • SLB 92
Shawkey • NYY 92
7. Kinney • PHA 91
8. Sothoron • SLB 87
9. Boland • DET 80
10. Mays • 2TM 77

Hits

Hits/Hits Allowed

1. Coveleski • CLE 286
2. Shaw • WSH 274
3. Williams • CHW 265
4. Dauss • DET 262
5. Bagby • CLE 258
Jones • BOS 258
7. Cicotte • CHW 256
Sothoron • SLB 256
9. Ehmke • DET 255
10. Quinn • NYY 242

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 2.882
2. Cicotte • CHW 2.245
3. Williams • CHW 2.155
4. Coveleski • CLE 1.967
5. Russell • 2TM 1.592
6. Leonard • DET 1.569
7. Shocker • SLB 1.564
8. Quinn • NYY 1.492
9. Pennock • BOS 1.458
10. Mays • 2TM 1.390

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 • WSH 0.000
2. Coveleski • CLE 0.063
3. Pennock • BOS 0.082
4. Kerr • CHW 0.085
5. Naylor • PHA 0.088
6. Bagby • CLE 0.112
7. Harper • WSH 0.130
8. Sothoron • SLB 0.133
9. Shaw • WSH 0.147
Cicotte • CHW 0.147

Losses

Losses

1. Harper • WSH 21
2. Jones • BOS 20
3. Naylor • PHA 18
4. Perry • PHA 17
Shaw • WSH 17
6. Boland • DET 16
7. Johnson • PHA 15
Kinney • PHA 15
9. Quinn • NYY 14
Johnson • WSH 14
Gallia • SLB 14
Mays • 2TM 14

Earned Runs

Earned Runs Allowed

1. Jones • BOS 102
2. Dauss • DET 101
3. Shaw • WSH 93
4. Gallia • SLB 89
5. Ehmke • DET 88
6. Williams • CHW 87
7. Harper • WSH 86
8. Coveleski • CLE 83
9. Boland • DET 82
Kinney • PHA 82

Wild Pitches

Wild Pitches

1. Shaw • WSH 10
2. Harper • WSH 9
3. Erickson • 2TM 8
Sothoron • SLB 8
5. Pennock • BOS 7
6. Russell • 2TM 5
Jones • BOS 5
Gallia • SLB 5
Dumont • BOS 5
Quinn • NYY 5
Ruth • BOS 5
Coveleski • CLE 5

Hit By Pitch

Times Hit by a Pitch.

1. Williams • CHW 11
2. Sothoron • SLB 10
Myers • CLE 10
Mays • 2TM 10
5. Lowdermilk • 2TM 9
6. Harper • WSH 8
Gallia • SLB 8
Faber • CHW 8
Kinney • PHA 8
Erickson • 2TM 8

Batters Faced

Batters Faced

1. Shaw • WSH 1,231
2. Cicotte • CHW 1,176
3. Williams • CHW 1,155
4. Coveleski • CLE 1,138
5. Sothoron • SLB 1,136
6. Johnson • WSH 1,131
7. Mays • 2TM 1,063
8. Quinn • NYY 1,062
9. Dauss • DET 1,049
10. Ehmke • DET 1,043

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. Kinney • PHA 21
2. Russell • 2TM 19
Kerr • CHW 19
4. Wright • SLB 16
5. Cunningham • DET 15
6. Ayers • 2TM 14
7. Phillips • CLE 12
8. Thompson • 2TM 11
Gill • WSH 11
Uhle • CLE 11
Shawkey • NYY 11
Love • DET 11

Adjusted ERA+

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

1. Johnson • WSH 215
2. Cicotte • CHW 176
3. Weilman • SLB 159
4. Sothoron • SLB 150
5. Mays • 2TM 148
6. Coveleski • CLE 128
7. Shocker • SLB 123
8. Quinn • NYY 121
9. Williams • CHW 121
10. Thormahlen • NYY 121

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 2.07
2. Coveleski • CLE 2.44
3. Cicotte • CHW 2.48
4. Williams • CHW 2.65
5. Pennock • BOS 2.67
6. Bagby • CLE 2.74
7. Kerr • CHW 2.80
8. Russell • 2TM 2.84
9. Morton • CLE 2.84
10. Shocker • SLB 2.88

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 • WSH 51
2. Cicotte • CHW 48
3. Mays • 2TM 26
4. Sothoron • SLB 26
5. Coveleski • CLE 25
6. Williams • CHW 21
7. Quinn • NYY 18
8. Weilman • SLB 17
9. Shaw • WSH 16
10. Shocker • SLB 16

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 • WSH 5.8
2. Cicotte • CHW 5.5
3. Mays • 2TM 2.9
4. Sothoron • SLB 2.8
5. Coveleski • CLE 2.8
6. Williams • CHW 2.3
7. Quinn • NYY 1.9
8. Weilman • SLB 1.9
9. Shaw • WSH 1.7
10. Shocker • SLB 1.7

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. Cicotte • CHW 64.08
2. Johnson • WSH 56.87
3. Coveleski • CLE 34.34
4. Williams • CHW 33.91
5. Mays • 2TM 33.54
6. Quinn • NYY 29.22
7. Shawkey • NYY 27.62
8. Shocker • SLB 24.83
9. Sothoron • SLB 22.78
10. Shaw • WSH 22.36

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. Cicotte • CHW 9.0
2. Johnson • WSH 7.1
3. Shawkey • NYY 4.6
4. Coveleski • CLE 4.3
5. Sothoron • SLB 4.3
6. Williams • CHW 3.7
7. Russell • 2TM 3.4
8. Kerr • CHW 3.0
9. Mays • 2TM 3.0
10. Shocker • SLB 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. Cicotte • CHW 6.5
2. Johnson • WSH 6.3
3. Williams • CHW 3.6
4. Quinn • NYY 3.3
5. Mays • 2TM 2.8
6. Shawkey • NYY 2.6
7. Coveleski • CLE 2.6
8. Sothoron • SLB 2.4
9. Shocker • SLB 2.4
10. Russell • 2TM 2.4

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. Cicotte • CHW 28.5
2. Coveleski • CLE 10.4
3. Williams • CHW 9.6
4. Kerr • CHW 8.3
5. Shawkey • NYY 5.1
6. Thormahlen • NYY 4.8
7. Bagby • CLE 4.1
8. Ayers • 2TM 3.1
9. Shocker • SLB 2.7
10. Johnson • WSH 2.2

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. Cicotte • CHW 7.5
2. Johnson • WSH 6.6
3. Mays • 2TM 3.9
4. Williams • CHW 3.8
5. Coveleski • CLE 3.7
6. Quinn • NYY 3.2
7. Shawkey • NYY 3.1
8. Shocker • SLB 2.7
9. Sothoron • SLB 2.4
10. Shaw • WSH 2.4

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