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. Feller • CLE 9.8
2. Newsom • DET 7.3
3. DiMaggio • NYY 7.1
4. Greenberg • DET 6.7
Rigney • CHW 6.7
6. Williams • BOS 6.6
7. Gordon • NYY 6.0
8. Boudreau • CLE 5.9
9. Keller • NYY 5.6
10. Rowe • DET 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. Feller • CLE 9.9
2. Newsom • DET 7.4
3. Rigney • CHW 6.7
4. Leonard • WSH 5.1
5. Bridges • DET 5.0
6. Rowe • DET 5.0
7. Babich • PHA 4.8
8. Chase • WSH 4.7
9. Auker • SLB 4.5
10. Lee • 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. Feller • CLE 2.61
2. Newsom • DET 2.83
3. Rigney • CHW 3.11
4. Smith • CHW 3.21
5. Chase • WSH 3.23
6. Lyons • CHW 3.24
7. Milnar • CLE 3.27
8. Russo • NYY 3.28
9. Bridges • DET 3.37
10. Ruffing • NYY 3.38

Wins

Wins

1. Feller • CLE 27
2. Newsom • DET 21
3. Milnar • CLE 18
4. Hudson • WSH 17
5. Rowe • DET 16
Auker • SLB 16
7. Ruffing • NYY 15
Smith • CLE 15
Chase • WSH 15
10. Babich • PHA 14
Rigney • CHW 14
Smith • CHW 14
Russo • NYY 14
Leonard • WSH 14

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. Rowe • DET .842
2. Newsom • DET .808
3. Feller • CLE .711
4. Smith • CLE .682
5. Wilson • BOS .667
6. Milnar • CLE .643
7. Russo • NYY .636
8. Heving • BOS .632
9. Dietrich • CHW .625
10. Smith • CHW .609

Walks & Hits per IP

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

1. Feller • CLE 1.133
2. Rigney • CHW 1.176
3. Lyons • CHW 1.208
4. Lee • CHW 1.224
5. Russo • NYY 1.246
6. Rowe • DET 1.260
7. Newsom • DET 1.269
8. Ruffing • NYY 1.301
9. Bridges • DET 1.310
10. Babich • PHA 1.317

Hits per 9 IP

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

1. Feller • CLE 6.883
2. Rigney • CHW 7.696
3. Smith • CHW 7.770
4. Bridges • DET 7.786
5. Newsom • DET 8.011
6. Russo • NYY 8.604
7. Ruffing • NYY 8.681
8. Babich • PHA 8.712
9. Lee • CHW 8.803
10. Chase • WSH 8.943

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. Lyons • CHW 1.787
2. Lee • CHW 2.211
3. Rowe • DET 2.290
4. Leonard • WSH 2.429
5. Russo • NYY 2.614
6. Smith • CLE 2.705
7. Harder • CLE 2.850
8. Rigney • CHW 2.886
9. Hudson • WSH 2.893
10. Knott • CHW 2.962

Strikeouts per 9 IP

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

1. Feller • CLE 7.333
2. Bridges • DET 6.056
3. Wilson • BOS 5.822
4. Newsom • DET 5.591
5. Smith • CHW 5.166
6. Rigney • CHW 4.521
7. Chase • WSH 4.437
8. Russo • NYY 4.136
9. Breuer • NYY 3.896
10. Ruffing • NYY 3.863

Games Played

Games Played or Pitched

1. Feller • CLE 43
2. Benton • DET 42
3. Heusser • PHA 41
Wilson • BOS 41
5. Dobson • CLE 40
6. Heving • BOS 39
Rigney • CHW 39
8. Auker • SLB 38
Hudson • WSH 38
10. Brown • CHW 37
Milnar • CLE 37

Saves

Saves

1. Benton • DET 17
2. Brown • CHW 10
3. Murphy • NYY 9
4. Appleton • CHW 5
Wilson • BOS 5
Heusser • PHA 5
Allen • CLE 5
8. Lawson • SLB 4
Feller • CLE 4
Eisenstat • CLE 4

Innings Pitched

Innings Pitched

1. Feller • CLE 320.1
2. Leonard • WSH 289.0
3. Rigney • CHW 280.2
4. Newsom • DET 264.0
5. Auker • SLB 263.2
6. Chase • WSH 261.2
7. Hudson • WSH 252.0
8. Milnar • CLE 242.1
9. Babich • PHA 229.1
10. Lee • CHW 228.0

Strikeouts

Strikeouts

1. Feller • CLE 261
2. Newsom • DET 164
3. Rigney • CHW 141
4. Bridges • DET 133
5. Chase • WSH 129
6. Leonard • WSH 124
7. Smith • CHW 119
8. Wilson • BOS 102
9. Milnar • CLE 99
10. Ruffing • NYY 97

Games Started

Games Started

1. Feller • CLE 37
2. Leonard • WSH 35
Auker • SLB 35
4. Newsom • DET 34
Chase • WSH 34
6. Milnar • CLE 33
Rigney • CHW 33
8. Kennedy • SLB 32
9. Hudson • WSH 31
10. Ruffing • NYY 30
Babich • PHA 30

Complete Games

Complete Game

1. Feller • CLE 31
2. Lee • CHW 24
3. Leonard • WSH 23
4. Ruffing • NYY 20
Auker • SLB 20
Newsom • DET 20
Chase • WSH 20
8. Hudson • WSH 19
Rigney • CHW 19
10. Kennedy • SLB 18

Shutouts

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

1. Lyons • CHW 4
Feller • CLE 4
Milnar • CLE 4
4. Hudson • WSH 3
Allen • CLE 3
Bonham • NYY 3
Ruffing • NYY 3
Newsom • DET 3
9. Auker • SLB 2
Knott • CHW 2
Leonard • WSH 2
Gorsica • DET 2
Rigney • CHW 2
Bridges • DET 2
Beckmann • PHA 2

Home Runs

Home Runs Hit/Allowed

1. Harris • SLB 24
Ruffing • NYY 24
3. Rigney • CHW 22
4. Dean • PHA 21
5. Breuer • NYY 20
Grove • BOS 20
Hudson • WSH 20
8. Leonard • WSH 19
Newsom • DET 19
10. Caster • PHA 18
Kennedy • SLB 18
Potter • PHA 18

Bases on Balls

Bases on Balls/Walks

1. Chase • WSH 143
2. Kennedy • SLB 122
3. Feller • CLE 118
4. Newsom • DET 100
5. Milnar • CLE 99
6. Auker • SLB 96
7. Smith • CHW 95
8. Rigney • CHW 90
9. Bridges • DET 88
Masterson • WSH 88

Hits

Hits/Hits Allowed

1. Leonard • WSH 328
2. Auker • SLB 299
3. Hudson • WSH 272
4. Kennedy • SLB 263
5. Chase • WSH 260
6. Feller • CLE 245
7. Milnar • CLE 242
8. Rigney • CHW 240
9. Newsom • DET 235
10. Caster • PHA 234

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. Feller • CLE 2.212
2. Lyons • CHW 1.946
3. Newsom • DET 1.640
4. Leonard • WSH 1.590
5. Russo • NYY 1.582
6. Rigney • CHW 1.567
7. Lee • CHW 1.554
8. Bridges • DET 1.511
9. Rowe • DET 1.419
10. Harder • CLE 1.288

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. Feller • CLE 0.365
2. Chase • WSH 0.482
3. Bridges • DET 0.501
4. Lee • CHW 0.513
5. Milnar • CLE 0.520
6. Gorsica • DET 0.563
7. Auker • SLB 0.580
8. Smith • CLE 0.590
9. Leonard • WSH 0.592
10. Babich • PHA 0.628
Chandler • NYY 0.628

Losses

Losses

1. Caster • PHA 19
Leonard • WSH 19
3. Rigney • CHW 18
4. Chase • WSH 17
Kennedy • SLB 17
6. Hudson • WSH 16
Bagby • BOS 16
8. Harris • SLB 15
9. Potter • PHA 14
10. Masterson • WSH 13
Dean • PHA 13
Heusser • PHA 13
Lee • CHW 13
Babich • PHA 13

Earned Runs

Earned Runs Allowed

1. Kennedy • SLB 138
2. Caster • PHA 130
3. Hudson • WSH 128
4. Dean • PHA 117
5. Auker • SLB 116
6. Leonard • WSH 112
7. Harris • SLB 106
8. Potter • PHA 99
9. Rigney • CHW 97
10. Bagby • BOS 96

Wild Pitches

Wild Pitches

1. Vaughan • PHA 12
Chase • WSH 12
3. Potter • PHA 10
Leonard • WSH 10
5. Feller • CLE 8
Harris • SLB 8
Niggeling • SLB 8
8. Dobson • CLE 7
Krakauskas • WSH 7
10. Hudson • WSH 6
Mills • SLB 6
Lyons • CHW 6
Wilson • BOS 6

Hit By Pitch

Times Hit by a Pitch.

1. Smith • CLE 6
Chandler • NYY 6
3. Niggeling • SLB 5
Feller • CLE 5
Hash • BOS 5
Harder • CLE 5
Chase • WSH 5
8. Gorsica • DET 4
Dickman • BOS 4
10. Harris • SLB 3
Naymick • CLE 3
Monteagudo • WSH 3
Newsom • DET 3
Mills • SLB 3
Masterson • WSH 3
Heving • BOS 3
Hudson • WSH 3
Allen • CLE 3
Kennedy • SLB 3
Ruffing • NYY 3
Caster • PHA 3
Smith • CHW 3
Besse • PHA 3
Trout • DET 3
Vaughan • PHA 3
Wilson • BOS 3
Auker • SLB 3

Batters Faced

Batters Faced

1. Feller • CLE 1,304
2. Leonard • WSH 1,245
3. Auker • SLB 1,176
4. Chase • WSH 1,165
5. Rigney • CHW 1,152
6. Newsom • DET 1,101
7. Hudson • WSH 1,090
8. Milnar • CLE 1,049
9. Kennedy • SLB 1,020
10. Babich • PHA 988

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. Brown • CHW 36
2. Benton • DET 35
3. Murphy • NYY 28
4. Heusser • PHA 26
5. Heving • BOS 21
6. Trotter • SLB 19
7. McKain • DET 17
Carrasquel • WSH 17
9. Krakauskas • WSH 16
Dobson • CLE 16
Beckmann • PHA 16
Lawson • SLB 16
Appleton • CHW 16

Adjusted ERA+

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

1. Newsom • DET 168
2. Feller • CLE 163
3. Rigney • CHW 143
4. Bridges • DET 141
5. Smith • CHW 138
6. Lyons • CHW 137
7. Rowe • DET 137
8. Milnar • CLE 130
9. Chase • WSH 129
10. Lee • CHW 128

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. Feller • CLE 3.05
2. Bridges • DET 3.72
3. Lee • CHW 3.75
4. Leonard • WSH 3.83
5. Newsom • DET 3.87
6. Rigney • CHW 4.00
7. Lyons • CHW 4.01
8. Gorsica • DET 4.11
9. Russo • NYY 4.14
10. Babich • PHA 4.15

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. Feller • CLE 63
2. Newsom • DET 46
3. Rigney • CHW 39
4. Bridges • DET 26
5. Bonham • NYY 26
6. Rowe • DET 25
7. Smith • CHW 25
8. Lee • CHW 25
9. Chase • WSH 23
10. Lyons • CHW 21

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. Feller • CLE 6.4
2. Newsom • DET 4.7
3. Rigney • CHW 3.8
4. Bonham • NYY 2.8
5. Bridges • DET 2.6
6. Rowe • DET 2.5
7. Smith • CHW 2.5
8. Lee • CHW 2.4
9. Chase • WSH 2.3
10. Lyons • CHW 2.1

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. Feller • CLE 72.49
2. Newsom • DET 45.71
3. Rigney • CHW 34.05
4. Rowe • DET 33.17
5. Bonham • NYY 29.34
6. Lee • CHW 27.98
7. Bridges • DET 27.75
8. Ruffing • NYY 25.54
9. Chase • WSH 25.18
10. Smith • CLE 23.31

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. Feller • CLE 8.8
2. Newsom • DET 4.8
3. Rigney • CHW 3.8
4. Bonham • NYY 3.8
5. Ruffing • NYY 3.5
6. Allen • CLE 3.1
7. Smith • CLE 2.8
8. Rowe • DET 2.7
9. Milnar • CLE 2.5
10. Pearson • NYY 2.4

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. Feller • CLE 6.7
2. Rigney • CHW 4.6
3. Newsom • DET 4.3
4. Bonham • NYY 2.7
5. Rowe • DET 2.6
6. Lee • CHW 2.4
7. Allen • CLE 2.4
8. Smith • CHW 2.3
9. Bridges • DET 2.2
10. Lyons • CHW 2.0

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. Feller • CLE 28.0
2. Newsom • DET 16.9
3. Rowe • DET 15.8
4. Allen • CLE 10.7
5. Giebell • DET 9.9
6. Smith • CLE 8.0
7. Harder • CLE 6.0
8. Bonham • NYY 6.0
9. Milnar • CLE 5.6
10. Eisenstat • CLE 2.4

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. Feller • CLE 7.6
2. Newsom • DET 4.4
3. Bonham • NYY 3.4
4. Rigney • CHW 3.3
5. Rowe • DET 3.2
6. Lee • CHW 2.8
7. Bridges • DET 2.6
8. Ruffing • NYY 2.6
9. Chase • WSH 2.5
10. Russo • NYY 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