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 16.6
2. Russell • CHW 9.6
3. Collins • PHA 9.4
4. Speaker • BOS 8.8
5. Baker • PHA 8.2
6. Jackson • CLE 8.0
7. Scott • CHW 7.1
8. Cicotte • CHW 7.0
9. Cobb • DET 6.9
10. Falkenberg • CLE 6.8

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 15.2
2. Russell • CHW 9.3
3. Scott • CHW 8.0
4. Cicotte • CHW 7.4
5. Falkenberg • CLE 7.1
6. Mitchell • CLE 6.0
7. Gregg • CLE 5.6
8. Collins • BOS 5.5
9. Bedient • BOS 4.5
10. Leonard • BOS 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 1.14
2. Cicotte • CHW 1.58
3. Scott • CHW 1.90
4. Russell • CHW 1.90
5. Mitchell • CLE 1.91
6. Boehling • WSH 2.14
7. Bender • PHA 2.21
8. Falkenberg • CLE 2.22
9. Gregg • CLE 2.24
10. Leonard • BOS 2.39

Wins

Wins

1. Johnson • WSH 36
2. Falkenberg • CLE 23
3. Russell • CHW 22
4. Bender • PHA 21
5. Scott • CHW 20
Gregg • CLE 20
7. Collins • BOS 19
8. Plank • PHA 18
Cicotte • CHW 18
10. Boehling • WSH 17
Brown • PHA 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. Johnson • WSH .837
2. Bush • PHA .714
3. Boehling • WSH .708
4. Collins • BOS .704
5. Houck • PHA .700
6. Falkenberg • CLE .697
7. Wood • BOS .688
8. Bender • PHA .677
9. Plank • PHA .643
10. Mitchell • CLE .636

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 0.780
2. Russell • CHW 1.039
3. Scott • CHW 1.082
4. Plank • PHA 1.104
5. Cicotte • CHW 1.108
6. Mitchell • CLE 1.111
7. Bender • PHA 1.128
8. Collins • BOS 1.131
9. Caldwell • NYY 1.162
10. Falkenberg • CLE 1.181

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 6.035
2. Mitchell • CLE 6.346
3. Engel • WSH 6.777
4. Leverenz • SLB 7.061
5. Russell • CHW 7.105
6. Caldwell • NYY 7.174
7. Scott • CHW 7.261
8. Houck • PHA 7.517
9. Dauss • DET 7.520
10. Cicotte • CHW 7.522

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. Johnson • WSH 0.988
2. Collins • BOS 1.350
3. Mitchell • SLB 1.724
4. Plank • PHA 2.114
5. Weilman • SLB 2.146
6. Ford • NYY 2.203
7. Bender • PHA 2.244
8. Russell • CHW 2.245
9. Bedient • BOS 2.328
10. Cicotte • CHW 2.451

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 6.321
2. Mitchell • CLE 5.848
3. Plank • PHA 5.600
4. Falkenberg • CLE 5.413
5. Groom • WSH 5.311
6. Gregg • CLE 5.230
7. Bender • PHA 5.134
8. Leonard • BOS 4.997
9. Caldwell • NYY 4.765
10. Scott • CHW 4.553

Games Played

Games Played or Pitched

1. Russell • CHW 52
2. Bender • PHA 48
Johnson • WSH 48
Scott • CHW 48
5. Gregg • CLE 44
6. Bedient • BOS 43
Brown • PHA 43
Fisher • NYY 43
9. Leonard • BOS 42
10. Blanding • CLE 41
Cicotte • CHW 41
Houck • PHA 41
Plank • PHA 41

Saves

Saves

1. Bender • PHA 13
2. Hughes • WSH 6
3. Bedient • BOS 4
Boehling • WSH 4
Russell • CHW 4
Plank • PHA 4
7. McConnell • NYY 3
Bush • PHA 3
Gallia • WSH 3
Gregg • CLE 3

Innings Pitched

Innings Pitched

1. Johnson • WSH 346.0
2. Russell • CHW 316.2
3. Scott • CHW 312.1
4. Gregg • CLE 285.2
5. Falkenberg • CLE 276.0
6. Cicotte • CHW 268.0
7. Groom • WSH 264.1
8. Leonard • BOS 259.1
9. Bedient • BOS 259.0
10. Baumgardner • SLB 253.1

Strikeouts

Strikeouts

1. Johnson • WSH 243
2. Falkenberg • CLE 166
Gregg • CLE 166
4. Scott • CHW 158
5. Groom • WSH 156
6. Plank • PHA 151
7. Leonard • BOS 144
8. Mitchell • CLE 141
9. Bender • PHA 135
10. Wood • BOS 123

Games Started

Games Started

1. Scott • CHW 38
2. Johnson • WSH 36
Groom • WSH 36
Falkenberg • CLE 36
Russell • CHW 36
6. Brown • PHA 35
7. Gregg • CLE 34
8. Baumgardner • SLB 31
Fisher • NYY 31
10. Cicotte • CHW 30
Plank • PHA 30
Collins • BOS 30
Willett • DET 30

Complete Games

Complete Game

1. Johnson • WSH 29
2. Russell • CHW 26
3. Scott • CHW 25
4. Baumgardner • SLB 23
Falkenberg • CLE 23
Gregg • CLE 23
7. Dauss • DET 22
Dubuc • DET 22
9. Mitchell • SLB 21
10. Willett • DET 19
Hamilton • SLB 19
Collins • BOS 19

Shutouts

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

1. Johnson • WSH 11
2. Russell • CHW 8
3. Plank • PHA 7
4. Falkenberg • CLE 6
5. Groom • WSH 4
Scott • CHW 4
Mitchell • SLB 4
Mitchell • CLE 4
9. Collins • BOS 3
Hamilton • SLB 3
Gregg • CLE 3
Leonard • BOS 3
Cicotte • CHW 3
Moseley • BOS 3
Brown • PHA 3
Boehling • WSH 3
Blanding • CLE 3

Home Runs

Home Runs Hit/Allowed

1. Ford • NYY 9
Johnson • WSH 9
3. Groom • WSH 8
4. Baumgardner • SLB 6
Blanding • CLE 6
Hughes • WSH 6
Brown • PHA 6
Mitchell • SLB 6
9. Caldwell • NYY 5
10. Pennock • PHA 4
Dauss • DET 4
Schulz • NYY 4

Bases on Balls

Bases on Balls/Walks

1. Gregg • CLE 124
2. Houck • PHA 122
3. Leonard • BOS 94
4. Dubuc • DET 91
5. Leverenz • SLB 89
Willett • DET 89
7. Falkenberg • CLE 88
Mitchell • CLE 88
9. Brown • PHA 87
10. Scott • CHW 86

Hits

Hits/Hits Allowed

1. Baumgardner • SLB 267
2. Mitchell • SLB 265
3. Weilman • SLB 262
4. Gregg • CLE 258
Groom • WSH 258
6. Bedient • BOS 255
7. Scott • CHW 252
8. Russell • CHW 250
9. Leonard • BOS 245
10. Fisher • NYY 244
Ford • NYY 244

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 6.395
2. Plank • PHA 2.649
3. Collins • BOS 2.378
4. Bender • PHA 2.288
5. Groom • WSH 1.926
6. Falkenberg • CLE 1.886
7. Scott • CHW 1.837
8. Bedient • BOS 1.821
9. Cicotte • CHW 1.658
10. Mitchell • CLE 1.602

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. Bedient • BOS 0.000
Willett • DET 0.000
Leonard • BOS 0.000
4. Dubuc • DET 0.037
5. Mitchell • CLE 0.041
6. Hall • DET 0.055
7. Russell • CHW 0.057
8. Scott • CHW 0.058
9. Gregg • CLE 0.063
10. Falkenberg • CLE 0.065

Losses

Losses

1. Scott • CHW 21
2. Baumgardner • SLB 20
3. Weilman • SLB 19
4. Ford • NYY 18
5. Leonard • BOS 17
Leverenz • SLB 17
7. Groom • WSH 16
Fisher • NYY 16
Russell • CHW 16
Mitchell • SLB 16

Earned Runs

Earned Runs Allowed

1. Groom • WSH 95
Weilman • SLB 95
3. Baumgardner • SLB 88
4. Fisher • NYY 87
5. Bush • PHA 85
6. Willett • DET 83
7. Mitchell • SLB 82
8. Houck • PHA 81
9. Bedient • BOS 80
Schulz • NYY 80

Wild Pitches

Wild Pitches

1. Falkenberg • CLE 13
Dubuc • DET 13
3. Houck • PHA 10
4. Groom • WSH 9
Gregg • CLE 9
Brown • PHA 9
7. Hall • DET 8
Wood • BOS 8
Dauss • DET 8
10. Schulz • NYY 7
Blanding • CLE 7
Walsh • CHW 7
Keating • NYY 7

Hit By Pitch

Times Hit by a Pitch.

1. Hughes • WSH 15
2. Dauss • DET 13
Gregg • CLE 13
4. Warhop • NYY 12
Leverenz • SLB 12
6. Engel • WSH 11
Willett • DET 11
8. Brown • PHA 10
Baumgardner • SLB 10
10. Boehling • WSH 9
Scott • CHW 9
Caldwell • NYY 9
Johnson • WSH 9
Hamilton • SLB 9
Fisher • NYY 9

Batters Faced

Batters Faced

1. Johnson • WSH 1,281
2. Russell • CHW 1,247
3. Scott • CHW 1,238
4. Gregg • CLE 1,180
5. Falkenberg • CLE 1,118
6. Cicotte • CHW 1,082
7. Groom • WSH 1,080
8. Leonard • BOS 1,079
9. Bedient • BOS 1,063
10. Baumgardner • SLB 1,060

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. Bender • PHA 24
2. Hall • BOS 22
3. Bush • PHA 20
4. Hughes • WSH 18
5. Gallia • WSH 16
Blanding • CLE 16
7. Lake • DET 13
McConnell • NYY 13
9. Smith • CHW 12
10. Zamloch • DET 11
Houck • PHA 11
Leonard • BOS 11

Adjusted ERA+

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

1. Johnson • WSH 259
2. Cicotte • CHW 186
3. Mitchell • CLE 160
4. Scott • CHW 154
5. Russell • CHW 154
6. Boehling • WSH 138
7. Falkenberg • CLE 138
8. Gregg • CLE 136
9. Bender • PHA 125
10. Caldwell • NYY 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 • WSH 1.90
2. Plank • PHA 2.24
3. Bender • PHA 2.31
4. Falkenberg • CLE 2.46
5. Bedient • BOS 2.46
6. Collins • BOS 2.48
7. Scott • CHW 2.54
8. Leonard • BOS 2.58
9. Cicotte • CHW 2.60
10. Mitchell • CLE 2.64

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 71
2. Russell • CHW 37
3. Cicotte • CHW 35
4. Scott • CHW 33
5. Falkenberg • CLE 27
6. Mitchell • CLE 27
7. Gregg • CLE 22
8. Boehling • WSH 19
9. Bender • PHA 16
10. Blanding • CLE 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. Johnson • WSH 8.3
2. Russell • CHW 4.1
3. Cicotte • CHW 4.0
4. Scott • CHW 3.7
5. Falkenberg • CLE 3.0
6. Mitchell • CLE 3.0
7. Gregg • CLE 2.5
8. Boehling • WSH 2.1
9. Bender • PHA 1.7
10. Blanding • CLE 1.4

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. Russell • CHW 42.26
2. Johnson • WSH 39.35
3. Scott • CHW 37.94
4. Cicotte • CHW 37.92
5. Bender • PHA 19.29
6. Mitchell • CLE 17.51
7. Wood • BOS 14.01
8. Boehling • WSH 13.43
9. Falkenberg • CLE 13.09
10. Caldwell • NYY 10.71

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 5.5
2. Russell • CHW 4.7
3. Scott • CHW 4.5
4. Cicotte • CHW 4.4
5. Bender • PHA 2.2
6. Mitchell • CLE 1.9
7. Leonard • BOS 1.9
8. Wood • BOS 1.7
9. Walsh • CHW 1.5
10. Benz • CHW 1.2

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. Russell • CHW 4.1
2. Johnson • WSH 4.1
3. Scott • CHW 4.0
4. Cicotte • CHW 3.1
5. Plank • PHA 2.3
6. Bender • PHA 1.9
7. Mitchell • CLE 1.7
8. Bedient • BOS 1.5
9. Brown • PHA 1.3
10. Boehling • WSH 1.2

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 5.7
2. Johnson • WSH 5.2
3. Mitchell • CLE 3.5
4. Plank • PHA 3.5
5. Russell • CHW 3.3
6. Scott • CHW 2.4
7. Brown • PHA 2.4
8. Gregg • CLE 2.1
9. Weilman • SLB 1.9
10. Cicotte • CHW 1.7

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. Russell • CHW 4.8
2. Johnson • WSH 4.4
3. Cicotte • CHW 4.3
4. Scott • CHW 4.3
5. Bender • PHA 2.2
6. Mitchell • CLE 1.9
7. Wood • BOS 1.6
8. Boehling • WSH 1.5
9. Falkenberg • CLE 1.4
10. Caldwell • NYY 1.2

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