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. Cobb • DET 10.5
2. Walsh • CHW 9.7
3. Jackson • CLE 9.1
4. Johnson • WSH 9.0
5. Gregg • CLE 8.7
6. Ford • NYY 7.5
7. Collins • PHA 6.7
8. Baker • PHA 6.7
9. Wood • BOS 6.5
10. Mullin • DET 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. Walsh • CHW 9.7
2. Gregg • CLE 9.1
3. Johnson • WSH 8.6
4. Ford • NYY 7.7
5. Plank • PHA 6.4
6. Bender • PHA 6.0
7. Mullin • DET 5.5
8. Wood • BOS 5.4
9. Caldwell • NYY 5.3
10. Scott • CHW 5.0

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. Gregg • CLE 1.80
2. Johnson • WSH 1.90
3. Wood • BOS 2.02
4. Plank • PHA 2.10
5. Bender • PHA 2.16
6. Walsh • CHW 2.22
7. Ford • NYY 2.27
8. Scott • CHW 2.39
9. Collins • BOS 2.40
10. Pape • BOS 2.45

Wins

Wins

1. Coombs • PHA 28
2. Walsh • CHW 27
3. Johnson • WSH 25
4. Gregg • CLE 23
Wood • BOS 23
Plank • PHA 23
7. Ford • NYY 22
8. Mullin • DET 18
9. Bender • PHA 17
10. Morgan • PHA 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. Bender • PHA .773
2. Gregg • CLE .767
3. Plank • PHA .742
4. Coombs • PHA .700
5. Works • DET .688
6. Morgan • PHA .682
7. Ford • NYY .667
8. Johnson • WSH .658
9. Mullin • DET .643
10. Walsh • CHW .600

Walks & Hits per IP

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

1. Gregg • CLE 1.054
2. Walsh • CHW 1.082
3. Wood • BOS 1.096
4. Johnson • WSH 1.123
5. Ford • NYY 1.162
6. Collins • BOS 1.171
7. Bender • PHA 1.183
8. White • CHW 1.185
9. Krause • PHA 1.195
10. Plank • PHA 1.223

Hits per 9 IP

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

1. Gregg • CLE 6.327
2. Wood • BOS 7.378
3. Krapp • CLE 7.622
4. Morgan • PHA 7.822
5. Scott • CHW 7.905
6. Walsh • CHW 7.983
7. Ford • NYY 8.030
8. Johnson • WSH 8.153
9. Bender • PHA 8.237
10. Krause • PHA 8.254

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. White • CHW 1.470
2. Lake • SLB 1.672
3. Walsh • CHW 1.758
4. Warhop • NYY 1.889
5. Powell • SLB 1.907
6. Johnson • WSH 1.954
7. Collins • BOS 2.034
8. Quinn • NYY 2.113
9. Mullin • DET 2.343
10. Groom • WSH 2.368

Strikeouts per 9 IP

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

1. Wood • BOS 7.542
2. Walsh • CHW 6.225
3. Lange • CHW 5.790
4. Johnson • WSH 5.780
5. Kahler • CLE 5.657
6. Krapp • CLE 5.351
7. Plank • PHA 5.225
8. Fisher • NYY 5.190
9. Scott • CHW 5.189
10. Caldwell • NYY 5.118

Games Played

Games Played or Pitched

1. Walsh • CHW 56
2. Coombs • PHA 47
3. Wood • BOS 44
4. Caldwell • NYY 41
5. Johnson • WSH 40
Plank • PHA 40
Quinn • NYY 40
8. Scott • CHW 39
9. Morgan • PHA 38
Willett • DET 38

Saves

Saves

1. Walsh • CHW 4
Plank • PHA 4
Hall • BOS 4
4. Bender • PHA 3
Wood • BOS 3
6. Young • CHW 2
White • CHW 2
Quinn • NYY 2
Olmstead • CHW 2
Krause • PHA 2
Blanding • CLE 2
Groom • WSH 2
Coombs • PHA 2

Innings Pitched

Innings Pitched

1. Walsh • CHW 368.2
2. Coombs • PHA 336.2
3. Johnson • WSH 322.1
4. Ford • NYY 281.1
5. Wood • BOS 275.2
6. Plank • PHA 256.2
7. Caldwell • NYY 255.0
8. Groom • WSH 254.2
9. Morgan • PHA 249.2
10. Gregg • CLE 244.2

Strikeouts

Strikeouts

1. Walsh • CHW 255
2. Wood • BOS 231
3. Johnson • WSH 207
4. Coombs • PHA 185
5. Ford • NYY 158
6. Plank • PHA 149
7. Caldwell • NYY 145
8. Morgan • PHA 136
9. Groom • WSH 135
10. Krapp • CLE 132

Games Started

Games Started

1. Coombs • PHA 40
2. Walsh • CHW 37
Johnson • WSH 37
4. Ford • NYY 33
Wood • BOS 33
6. Groom • WSH 32
7. Plank • PHA 30
Morgan • PHA 30
9. Mullin • DET 29
White • CHW 29

Complete Games

Complete Game

1. Johnson • WSH 36
2. Walsh • CHW 33
3. Coombs • PHA 26
Ford • NYY 26
5. Wood • BOS 25
Mullin • DET 25
7. Plank • PHA 24
8. Gregg • CLE 22
9. Groom • WSH 20
10. Caldwell • NYY 19

Shutouts

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

1. Plank • PHA 6
Johnson • WSH 6
3. Wood • BOS 5
Walsh • CHW 5
Gregg • CLE 5
6. White • CHW 4
7. Works • DET 3
Scott • CHW 3
9. Bender • PHA 2
Willett • DET 2
Walker • WSH 2
O'Brien • BOS 2
Mullin • DET 2
Morgan • PHA 2
Lake • SLB 2
Groom • WSH 2
Fisher • NYY 2
Hughes • WSH 2

Home Runs

Home Runs Hit/Allowed

1. Groom • WSH 9
2. Johnson • WSH 8
Coombs • PHA 8
4. Mullin • DET 7
Caldwell • NYY 7
Hughes • WSH 7
Powell • SLB 7
8. Warhop • NYY 6
9. Blanding • CLE 5
Willett • DET 5

Bases on Balls

Bases on Balls/Walks

1. Krapp • CLE 138
2. Coombs • PHA 119
3. Morgan • PHA 113
4. Gregg • CLE 86
5. Scott • CHW 81
6. Willett • DET 80
7. Caldwell • NYY 79
8. Hughes • WSH 77
Lange • CHW 77
Plank • PHA 77

Hits

Hits/Hits Allowed

1. Coombs • PHA 360
2. Walsh • CHW 327
3. Johnson • WSH 292
4. Groom • WSH 280
5. Willett • DET 261
6. Ford • NYY 251
Hughes • WSH 251
8. Lake • SLB 245
Mullin • DET 245
10. Caldwell • NYY 240

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. Walsh • CHW 3.542
2. Wood • BOS 3.039
3. Johnson • WSH 2.957
4. Ford • NYY 2.079
5. White • CHW 2.057
6. Groom • WSH 2.015
7. Bender • PHA 1.966
8. Collins • BOS 1.955
9. Plank • PHA 1.935
10. Caldwell • NYY 1.835

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. Morgan • PHA 0.000
2. Krapp • CLE 0.041
3. Collins • BOS 0.046
4. Mitchell • CLE 0.051
5. Kahler • CLE 0.058
6. Wood • BOS 0.065
7. Plank • PHA 0.070
8. Gregg • CLE 0.074
9. Cicotte • BOS 0.082
10. Bender • PHA 0.083

Losses

Losses

1. Powell • SLB 19
2. Walsh • CHW 18
3. Hughes • WSH 17
Groom • WSH 17
Wood • BOS 17
6. Pelty • SLB 15
Cicotte • BOS 15
Lake • SLB 15
9. Willett • DET 14
White • CHW 14
Mitchell • CLE 14
Caldwell • NYY 14

Earned Runs

Earned Runs Allowed

1. Coombs • PHA 132
2. Groom • WSH 108
3. Warhop • NYY 97
4. Caldwell • NYY 95
5. Willett • DET 94
6. Walsh • CHW 91
7. Hughes • WSH 86
8. Krapp • CLE 84
9. Mullin • DET 80
10. Lake • SLB 79

Wild Pitches

Wild Pitches

1. Johnson • WSH 17
2. Krapp • CLE 14
3. Coombs • PHA 12
4. Wood • BOS 10
Gray • WSH 10
6. Mitchell • CLE 9
7. Groom • WSH 8
Gregg • CLE 8
Walsh • CHW 8
Lafitte • DET 8

Hit By Pitch

Times Hit by a Pitch.

1. Morgan • PHA 21
2. Coombs • PHA 16
3. Warhop • NYY 15
4. Plank • PHA 14
Willett • DET 14
6. Krapp • CLE 13
Kahler • CLE 13
Caldwell • NYY 13
Mitchell • CLE 13
10. Mullin • DET 12

Batters Faced

Batters Faced

1. Walsh • CHW 1,449
2. Coombs • PHA 1,422
3. Johnson • WSH 1,306
4. Ford • NYY 1,139
5. Wood • BOS 1,102
6. Groom • WSH 1,068
7. Morgan • PHA 1,028
8. Plank • PHA 1,020
9. Caldwell • NYY 1,015
10. Willett • DET 978

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. Quinn • NYY 19
Walsh • CHW 19
3. Hall • BOS 18
4. Caldwell • NYY 13
5. Blanding • CLE 12
Mitchell • SLB 12
7. Wood • BOS 11
8. Kahler • CLE 10
Hamilton • SLB 10
Works • DET 10
Gray • WSH 10
Danforth • PHA 10

Adjusted ERA+

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

1. Gregg • CLE 189
2. Johnson • WSH 173
3. Wood • BOS 162
4. Ford • NYY 158
5. Plank • PHA 149
6. Walsh • CHW 146
7. Bender • PHA 145
8. Collins • BOS 136
9. Scott • CHW 136
10. Pape • BOS 134

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. Wood • BOS 2.13
2. Walsh • CHW 2.17
3. Johnson • WSH 2.53
4. Ford • NYY 2.64
5. Collins • BOS 2.69
6. Bender • PHA 2.69
7. Plank • PHA 2.77
8. White • CHW 2.83
9. Quinn • NYY 2.88
10. Fisher • NYY 2.89

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. Walsh • CHW 44
2. Gregg • CLE 43
3. Johnson • WSH 41
4. Ford • NYY 31
5. Plank • PHA 31
6. Wood • BOS 29
7. Bender • PHA 28
8. Scott • CHW 22
9. Collins • BOS 16
Pape • BOS 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. Gregg • CLE 4.6
2. Walsh • CHW 4.5
3. Johnson • WSH 4.3
4. Ford • NYY 3.2
5. Plank • PHA 3.2
6. Wood • BOS 3.0
7. Bender • PHA 2.9
8. Scott • CHW 2.2
9. Pape • BOS 1.7
10. Collins • BOS 1.6

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. Walsh • CHW 72.15
2. Gregg • CLE 55.91
3. Plank • PHA 50.03
4. Johnson • WSH 46.80
5. Bender • PHA 43.52
6. Ford • NYY 34.11
7. Scott • CHW 29.31
8. Wood • BOS 28.60
9. Krause • PHA 23.78
10. Mullin • DET 23.25

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. Johnson • WSH 5.7
2. Gregg • CLE 5.7
3. Bender • PHA 5.2
4. Plank • PHA 5.0
5. Ford • NYY 4.5
6. Walsh • CHW 4.0
7. Scott • CHW 3.7
8. Morgan • PHA 3.2
9. Wood • BOS 3.0
10. Collins • BOS 2.7

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. Walsh • CHW 6.8
2. Gregg • CLE 5.3
3. Wood • BOS 4.2
4. Johnson • WSH 4.2
5. Bender • PHA 4.0
6. Plank • PHA 3.8
7. Ford • NYY 3.3
8. Morgan • PHA 2.6
9. Collins • BOS 2.5
10. Krause • PHA 2.3

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. Bender • PHA 16.9
2. Plank • PHA 6.9
3. Ford • NYY 3.5
4. Morgan • PHA 2.7
5. Wood • BOS 2.6
6. Summers • DET 1.8
7. Warhop • NYY 1.5
8. Caldwell • NYY 1.5
9. Danforth • PHA 1.4
10. Lively • DET 1.0

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. Walsh • CHW 7.8
2. Gregg • CLE 6.0
3. Plank • PHA 5.5
4. Johnson • WSH 5.0
5. Bender • PHA 4.8
6. Ford • NYY 3.4
7. Scott • CHW 3.1
8. Wood • BOS 2.9
9. Krause • PHA 2.5
10. O'Brien • BOS 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