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 15.4
2. Walsh • CHW 12.8
3. Wood • BOS 11.5
4. Speaker • BOS 10.0
5. Jackson • CLE 9.3
6. Baker • PHA 9.0
7. Cobb • DET 8.8
8. Collins • PHA 8.8
9. Gregg • CLE 7.2
10. Warhop • NYY 7.1

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 14.3
2. Walsh • CHW 12.1
3. Wood • BOS 10.2
4. Gregg • CLE 7.5
5. Warhop • NYY 6.9
6. Collins • BOS 5.6
7. O'Brien • BOS 5.3
8. Ford • NYY 4.9
9. Blanding • CLE 4.5
10. Dubuc • DET 4.3

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 1.39
2. Wood • BOS 1.91
3. Walsh • CHW 2.15
4. Plank • PHA 2.22
5. Collins • BOS 2.53
6. O'Brien • BOS 2.58
7. Gregg • CLE 2.59
8. Groom • WSH 2.62
9. Bender • PHA 2.74
10. McConnell • NYY 2.75

Wins

Wins

1. Wood • BOS 34
2. Johnson • WSH 33
3. Walsh • CHW 27
4. Plank • PHA 26
5. Groom • WSH 24
6. Coombs • PHA 21
7. Bedient • BOS 20
O'Brien • BOS 20
Gregg • CLE 20
10. Blanding • CLE 18

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. Wood • BOS .872
2. Plank • PHA .813
3. Johnson • WSH .733
4. Bedient • BOS .690
5. Coombs • PHA .677
6. Hall • BOS .652
7. Groom • WSH .649
8. Dubuc • DET .630
9. Cashion • WSH .625
10. Bender • PHA .619
Collins • BOS .619

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 0.908
2. Wood • BOS 1.015
3. Walsh • CHW 1.084
4. Bedient • BOS 1.130
5. Collins • BOS 1.174
6. Bender • PHA 1.181
7. O'Brien • BOS 1.186
8. Groom • WSH 1.206
9. Plank • PHA 1.221
10. Warhop • NYY 1.221

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 6.317
2. Wood • BOS 6.985
3. Houck • PHA 7.373
4. Walsh • CHW 7.603
5. O'Brien • BOS 7.738
6. Coombs • PHA 7.788
7. Dubuc • DET 7.812
8. Cashion • WSH 7.926
9. Bedient • BOS 8.026
10. Gregg • CLE 8.027

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. Bender • PHA 1.737
2. Johnson • WSH 1.854
3. Collins • BOS 1.896
4. Powell • SLB 1.989
5. Warhop • NYY 2.058
6. Bedient • BOS 2.143
7. Wood • BOS 2.145
8. Walsh • CHW 2.153
9. Lake • 2TM 2.253
10. Cicotte • 2TM 2.364

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 7.390
2. Wood • BOS 6.750
3. Gregg • CLE 6.103
4. Walsh • CHW 5.817
5. Lange • CHW 5.226
6. Mitchell • CLE 5.169
7. Groom • WSH 5.098
8. Hamilton • SLB 5.011
9. Hughes • WSH 4.959
10. Bedient • BOS 4.753

Games Played

Games Played or Pitched

1. Walsh • CHW 62
2. Johnson • WSH 50
3. Groom • WSH 43
Wood • BOS 43
5. Benz • CHW 42
6. Bedient • BOS 41
Hamilton • SLB 41
Kahler • CLE 41
9. Coombs • PHA 40
10. Blanding • CLE 39
Warhop • NYY 39

Saves

Saves

1. Walsh • CHW 10
2. Mogridge • CHW 3
Lange • CHW 3
Dubuc • DET 3
Warhop • NYY 3
6. Musser • WSH 2
Pennock • PHA 2
Johnson • WSH 2
Plank • PHA 2
Hamilton • SLB 2
Hall • BOS 2
Gregg • CLE 2
Coombs • PHA 2
Bender • PHA 2
Bedient • BOS 2

Innings Pitched

Innings Pitched

1. Walsh • CHW 393.0
2. Johnson • WSH 369.0
3. Wood • BOS 344.0
4. Groom • WSH 316.0
5. Ford • NYY 291.2
6. Willett • DET 284.1
7. O'Brien • BOS 275.2
8. Gregg • CLE 271.1
9. Coombs • PHA 262.1
10. Blanding • CLE 262.0

Strikeouts

Strikeouts

1. Johnson • WSH 303
2. Wood • BOS 258
3. Walsh • CHW 254
4. Gregg • CLE 184
5. Groom • WSH 179
6. Hamilton • SLB 139
7. Bedient • BOS 122
8. Coombs • PHA 120
9. O'Brien • BOS 115
10. Lake • 2TM 114

Games Started

Games Started

1. Walsh • CHW 41
2. Groom • WSH 40
3. Wood • BOS 38
4. Johnson • WSH 37
5. Ford • NYY 35
6. Gregg • CLE 34
O'Brien • BOS 34
8. Kahler • CLE 32
Coombs • PHA 32
10. Benz • CHW 31
Blanding • CLE 31
Willett • DET 31

Complete Games

Complete Game

1. Wood • BOS 35
2. Johnson • WSH 34
3. Walsh • CHW 32
4. Ford • NYY 30
5. Groom • WSH 28
Willett • DET 28
7. Gregg • CLE 26
8. O'Brien • BOS 25
9. Blanding • CLE 23
Plank • PHA 23
Coombs • PHA 23
Dubuc • DET 23

Shutouts

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

1. Wood • BOS 10
2. Johnson • WSH 7
3. Walsh • CHW 6
4. Plank • PHA 5
5. Collins • BOS 4
6. Kahler • CLE 3
Benz • CHW 3
Brown • PHA 3
Caldwell • NYY 3
10. Weilman • SLB 2
Mullin • DET 2
Lange • CHW 2
O'Brien • BOS 2
Hall • BOS 2
Groom • WSH 2
Dubuc • DET 2
Baumgardner • SLB 2

Home Runs

Home Runs Hit/Allowed

1. Ford • NYY 11
2. Hughes • WSH 8
3. Bedient • BOS 6
Walsh • CHW 6
5. Powell • SLB 5
Benz • CHW 5
Coombs • PHA 5
8. Allison • SLB 4
Lange • CHW 4
Gregg • CLE 4
Quinn • NYY 4
Collins • BOS 4
Cashion • WSH 4
Blanding • CLE 4

Bases on Balls

Bases on Balls/Walks

1. Kahler • CLE 121
2. Dubuc • DET 109
3. Cashion • WSH 103
4. Coombs • PHA 94
Groom • WSH 94
Walsh • CHW 94
7. Mullin • DET 92
8. Gregg • CLE 90
O'Brien • BOS 90
10. Brown • PHA 87

Hits

Hits/Hits Allowed

1. Walsh • CHW 332
2. Ford • NYY 317
3. Groom • WSH 287
4. Willett • DET 281
5. Wood • BOS 267
6. Kahler • CLE 263
7. Lake • 2TM 260
8. Blanding • CLE 259
Johnson • WSH 259
10. Warhop • NYY 256

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 3.987
2. Wood • BOS 3.146
3. Bender • PHA 2.727
4. Walsh • CHW 2.702
5. Bedient • BOS 2.218
6. Lake • 2TM 2.073
7. Gregg • CLE 2.044
8. Collins • BOS 1.952
9. Groom • WSH 1.904
10. Warhop • NYY 1.864

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. Mitchell • CLE 0.000
2. Plank • PHA 0.035
3. Kahler • CLE 0.037
4. Baumgardner • SLB 0.041
5. Johnson • WSH 0.049
6. Caldwell • NYY 0.049
7. Houck • PHA 0.050
8. Wood • BOS 0.052
White • CHW 0.052
10. Bender • PHA 0.053

Losses

Losses

1. Ford • NYY 21
2. Kahler • CLE 19
Warhop • NYY 19
4. Lake • 2TM 18
5. Powell • SLB 17
Benz • CHW 17
Walsh • CHW 17
Mullin • DET 17
Allison • SLB 17
10. Caldwell • NYY 16

Earned Runs

Earned Runs Allowed

1. Ford • NYY 115
2. Willett • DET 104
3. Kahler • CLE 101
4. Coombs • PHA 96
5. Walsh • CHW 94
6. Groom • WSH 92
7. Caldwell • NYY 91
8. Hamilton • SLB 90
9. Mullin • DET 89
10. Blanding • CLE 85

Wild Pitches

Wild Pitches

1. Dubuc • DET 16
2. Vaughn • 2TM 11
Johnson • WSH 11
Cashion • WSH 11
5. Mitchell • CLE 10
Bender • PHA 10
7. Works • DET 9
Willett • DET 9
Gregg • CLE 9
10. Benz • CHW 8

Hit By Pitch

Times Hit by a Pitch.

1. Willett • DET 17
2. Warhop • NYY 16
Johnson • WSH 16
4. Houck • PHA 12
Wood • BOS 12
Brown • SLB 12
7. Baumgardner • SLB 11
Kahler • CLE 11
9. Gregg • CLE 10
Coombs • PHA 10
O'Brien • BOS 10

Batters Faced

Batters Faced

1. Walsh • CHW 1,532
2. Johnson • WSH 1,413
3. Wood • BOS 1,328
4. Groom • WSH 1,266
5. Ford • NYY 1,218
6. Willett • DET 1,172
7. O'Brien • BOS 1,100
8. Gregg • CLE 1,083
9. Blanding • CLE 1,052
10. Coombs • PHA 1,046

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. Walsh • CHW 20
2. Baskette • CLE 18
3. Warhop • NYY 15
Lake • 2TM 15
5. Johnson • WSH 13
Pennock • PHA 13
7. Hall • BOS 12
8. Bedient • BOS 11
Works • DET 11
Dubuc • DET 11
Brown • SLB 11

Adjusted ERA+

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

1. Johnson • WSH 243
2. Wood • BOS 177
3. Walsh • CHW 149
4. Plank • PHA 139
5. Collins • BOS 134
6. Gregg • CLE 133
7. McConnell • NYY 133
8. O'Brien • BOS 131
9. Groom • WSH 129
10. Warhop • NYY 127

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 2.03
2. Wood • BOS 2.25
3. Bender • PHA 2.47
4. Walsh • CHW 2.48
5. Groom • WSH 2.78
6. Gregg • CLE 2.79
7. Lake • 2TM 2.80
8. Mitchell • CLE 2.86
9. Bedient • BOS 2.89
10. Cicotte • 2TM 2.94

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 76
2. Wood • BOS 54
3. Walsh • CHW 49
4. Gregg • CLE 27
5. Plank • PHA 26
6. O'Brien • BOS 24
7. Groom • WSH 23
8. Collins • BOS 23
9. Warhop • NYY 17
10. Bedient • BOS 15

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 8.4
2. Wood • BOS 5.8
3. Walsh • CHW 5.1
4. Gregg • CLE 2.9
5. Plank • PHA 2.7
6. O'Brien • BOS 2.5
7. Groom • WSH 2.4
8. Collins • BOS 2.4
9. Warhop • NYY 1.8
10. Bedient • 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. Johnson • WSH 103.68
2. Wood • BOS 72.13
3. Walsh • CHW 71.61
4. Plank • PHA 38.67
5. Gregg • CLE 36.36
6. O'Brien • BOS 34.38
7. Collins • BOS 33.26
8. Bedient • BOS 27.75
9. Groom • WSH 24.29
10. Blanding • CLE 19.99

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 13.1
2. Walsh • CHW 8.7
3. Wood • BOS 8.5
4. Plank • PHA 6.5
5. O'Brien • BOS 5.0
6. Gregg • CLE 4.2
7. Bedient • BOS 4.0
8. Groom • WSH 3.7
9. Coombs • PHA 3.3
10. Hall • 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. Johnson • WSH 10.7
2. Wood • BOS 8.4
3. Walsh • CHW 7.1
4. Gregg • CLE 3.8
5. O'Brien • BOS 3.4
6. Groom • WSH 3.2
7. Bedient • BOS 3.0
8. Plank • PHA 2.9
9. Collins • BOS 2.6
10. Coombs • PHA 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. Johnson • WSH 16.5
2. Wood • BOS 15.4
3. Bedient • BOS 9.2
4. Hall • BOS 8.5
5. Walsh • CHW 7.8
6. O'Brien • BOS 6.0
7. Plank • PHA 5.3
8. Collins • BOS 5.0
9. Coombs • PHA 4.5
10. Groom • WSH 3.2

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. Johnson • WSH 11.7
2. Wood • BOS 7.9
3. Walsh • CHW 7.8
4. Plank • PHA 4.3
5. Gregg • CLE 3.8
6. O'Brien • BOS 3.6
7. Collins • BOS 3.5
8. Bedient • BOS 2.9
9. Groom • WSH 2.5
10. Bender • PHA 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