1945 American League Pitching Leaders

Previous Season Next Season

Other Leagues: Major Leagues, NAL, NL, NN2

Pennant Winner: Detroit Tigers

AL Most Valuable Player: Hal Newhouser

Become a Stathead & surf this site ad-free.

1945 AL Menu

American League Pitching Leaders

Wins Above Replacement--all

Wins Above Replacement A single number that presents the number of wins the player added to the team above what a replacement player (think AAA or AAAA) would add. Scale for a single-season: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter, 0-2 Reserve, < 0 Replacement Level Developed by Sean Smith of BaseballProjection.com

1. Newhouser • DET 12.2

2. Stirnweiss • NYY 8.8

3. Potter • SLB 7.8

4. Lake • BOS 7.1

5. Gromek • CLE 6.3

6. Wolff • WSH 5.6

7. Stephens • SLB 5.5

8. Cullenbine • 2TM 5.5

9. Ferriss • BOS 5.1

10. Mayo • DET 4.7

WAR for Pitchers

Wins Above Replacement for Pitchers A single number that presents the number of wins the player added 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. Scale: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter, 0-2 Reserve, < 0 Replacement Level Developed by Sean Smith of BaseballProjection.com

1. Newhouser • DET 11.3

2. Potter • SLB 7.2

3. Wolff • WSH 6.0

4. Gromek • CLE 5.7

5. Hollingsworth • SLB 3.9

6. Lee • CHW 3.7

7. Ferriss • BOS 3.6

8. Berry • PHA 3.5

9. Leonard • WSH 3.5

10. Benton • DET 3.4

Earned Run Average

9 * ER / IP For recent years, leaders need 1 IP per team game played. Bold indicates lowest ERA using current stats Gold means awarded ERA title at end of year.

1. Newhouser • DET 1.81

2. Benton • DET 2.02

3. Wolff • WSH 2.12

4. Leonard • WSH 2.13

5. Lee • CHW 2.44

6. Potter • SLB 2.47

7. Gromek • CLE 2.55

8. Hollingsworth • SLB 2.70

9. Ferriss • BOS 2.96

10. Trout • DET 3.14

Wins

1. Newhouser • DET 25

2. Ferriss • BOS 21

3. Wolff • WSH 20

4. Gromek • CLE 19

5. Trout • DET 18

Reynolds • CLE 18

7. Leonard • WSH 17

8. Haefner • WSH 16

9. Lee • CHW 15

Potter • SLB 15

Win-Loss %

Win-Loss Percentage W / (W + L) For players, leaders need one decision for every ten team games. For managers, minimum to qualify for leading is 320 games.

1. Muncrief • SLB .765

2. Newhouser • DET .735

3. Leonard • WSH .708

4. Gromek • CLE .679

5. Ferriss • BOS .677

6. Wolff • WSH .667

7. Benton • DET .619

8. Reynolds • CLE .600

9. Bevens • NYY .591

10. Potter • SLB .577

Walks & Hits per IP

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

1. Wolff • WSH 1.012

2. Potter • SLB 1.097

3. Newhouser • DET 1.114

4. Leonard • WSH 1.125

5. Bonham • NYY 1.151

6. Gromek • CLE 1.175

7. Haefner • WSH 1.238

8. Benton • DET 1.242

9. Lee • CHW 1.244

10. Gettel • NYY 1.254

Hits per 9 IP

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

1. Newhouser • DET 6.865

2. Wolff • WSH 7.200

3. Potter • SLB 7.473

4. Lee • CHW 8.199

5. Niggeling • WSH 8.202

6. Gettel • NYY 8.205

7. Gromek • CLE 8.211

8. Benton • DET 8.217

9. Reynolds • CLE 8.260

10. Christopher • PHA 8.433

Bases On Balls per 9 IP

9 x BB / IP For recent years, leaders need 1 IP per team game played

1. Bonham • NYY 1.096

2. Leonard • WSH 1.458

3. Wolff • WSH 1.908

4. Overmire • DET 2.329

5. Gromek • CLE 2.367

6. Potter • SLB 2.397

7. Lopat • CHW 2.528

8. Haefner • WSH 2.606

9. Grove • CHW 2.820

10. Trout • DET 2.886

Strikeouts per 9 IP

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

1. Newhouser • DET 6.089

2. Kramer • SLB 4.617

3. Niggeling • WSH 4.585

4. Potter • SLB 4.547

5. Newsom • PHA 4.442

6. Lee • CHW 4.257

7. Reynolds • CLE 4.075

8. Leonard • WSH 4.000

9. Christopher • PHA 3.959

10. Gettel • NYY 3.899

Games Played

Games Played or Pitched

1. Berry • PHA 52

2. Pieretti • WSH 44

Reynolds • CLE 44

4. Trout • DET 41

5. Newhouser • DET 40

6. Klieman • CLE 38

7. Barrett • BOS 37

Haefner • WSH 37

9. Newsom • PHA 36

10. Carrasquel • WSH 35

Ferriss • BOS 35

Saves

1. Turner • NYY 10

2. Berry • PHA 5

3. Reynolds • CLE 4

Caldwell • CHW 4

Overmire • DET 4

Klieman • CLE 4

Johnson • CHW 4

8. Caster • 2TM 3

Haefner • WSH 3

Gettel • NYY 3

Benton • DET 3

Barrett • BOS 3

Innings Pitched

1. Newhouser • DET 313.1

2. Ferriss • BOS 264.2

3. Newsom • PHA 257.1

4. Potter • SLB 255.1

5. Gromek • CLE 251.0

6. Wolff • WSH 250.0

7. Reynolds • CLE 247.1

8. Trout • DET 246.1

9. Haefner • WSH 238.1

10. Pieretti • WSH 233.1

Strikeouts

1. Newhouser • DET 212

2. Potter • SLB 129

3. Newsom • PHA 127

4. Reynolds • CLE 112

5. Lee • CHW 108

Wolff • WSH 108

7. Gromek • CLE 101

8. Christopher • PHA 100

9. Kramer • SLB 99

10. Trout • DET 97

Games Started

1. Newhouser • DET 36

2. Newsom • PHA 34

3. Potter • SLB 32

4. Ferriss • BOS 31

Trout • DET 31

6. Gromek • CLE 30

Grove • CHW 30

Reynolds • CLE 30

9. Wolff • WSH 29

Leonard • WSH 29

Complete Games

Complete Game

1. Newhouser • DET 29

2. Ferriss • BOS 26

3. Gromek • CLE 21

Wolff • WSH 21

Potter • SLB 21

6. Lee • CHW 19

Haefner • WSH 19

8. Trout • DET 18

9. Lopat • CHW 17

Christopher • PHA 17

Shutouts

Shutouts No runs allowed and a complete game.

1. Newhouser • DET 8

2. Benton • DET 5

Ferriss • BOS 5

4. Wolff • WSH 4

Trout • DET 4

Leonard • WSH 4

Grove • CHW 4

Flores • PHA 4

9. Dietrich • CHW 3

Bagby • CLE 3

Smith • CLE 3

Potter • SLB 3

Pieretti • WSH 3

Newsom • PHA 3

Kramer • SLB 3

Gromek • CLE 3

Home Runs

Home Runs Hit/Allowed

1. Kramer • SLB 13

2. Newsom • PHA 12

Bevens • NYY 12

Grove • CHW 12

5. Bonham • NYY 11

Gettel • NYY 11

Humphries • CHW 11

8. Haefner • WSH 10

Potter • SLB 10

10. Dubiel • NYY 9

Jakucki • SLB 9

Christopher • PHA 9

Bases on Balls

Bases on Balls/Walks

1. Reynolds • CLE 130

2. O'Neill • BOS 117

3. Newhouser • DET 110

4. Newsom • PHA 103

5. Shirley • SLB 93

6. Pieretti • WSH 91

7. Wilson • BOS 88

8. Ferriss • BOS 85

9. Trout • DET 79

10. Lee • CHW 76

Hits

Hits/Hits Allowed

1. Ferriss • BOS 263

2. Newsom • PHA 255

3. Trout • DET 252

4. Newhouser • DET 239

5. Pieretti • WSH 235

6. Grove • CHW 233

7. Gromek • CLE 229

8. Reynolds • CLE 227

9. Haefner • WSH 226

Lopat • CHW 226

Strikeouts / Base On Balls

SO/W or SO/BB For recent years, pitching leaders need 1 IP per team game played. No batting leaders computed.

1. Leonard • WSH 2.743

2. Wolff • WSH 2.038

3. Newhouser • DET 1.927

4. Bonham • NYY 1.909

5. Potter • SLB 1.897

6. Gromek • CLE 1.530

7. Lee • CHW 1.421

8. Kramer • SLB 1.356

9. Christopher • PHA 1.333

10. Lopat • CHW 1.321

Home Runs per 9 IP

9 x HR / IP For recent years, leaders need 1 IP per team game played

1. Pieretti • WSH 0.116

2. Newhouser • DET 0.144

3. Bagby • CLE 0.169

4. Ferriss • BOS 0.204

5. Hollingsworth • SLB 0.208

6. Leonard • WSH 0.208

7. Gromek • CLE 0.215

8. Wolff • WSH 0.252

9. Reynolds • CLE 0.255

10. Lee • CHW 0.276

Losses

1. Newsom • PHA 20

2. Kramer • SLB 15

Trout • DET 15

4. Humphries • CHW 14

Haefner • WSH 14

6. Lopat • CHW 13

Christopher • PHA 13

Pieretti • WSH 13

9. Niggeling • WSH 12

Reynolds • CLE 12

Lee • CHW 12

Shirley • SLB 12

Smith • CLE 12

Grove • CHW 12

Gerkin • PHA 12

Earned Runs

Earned Runs Allowed

1. Newsom • PHA 94

2. Haefner • WSH 92

3. Lopat • CHW 91

4. Reynolds • CLE 88

5. Ferriss • BOS 87

6. Pieretti • WSH 86

Trout • DET 86

8. Grove • CHW 83

9. O'Neill • BOS 81

10. Christopher • PHA 80

Wild Pitches

1. Newhouser • DET 10

2. Knerr • PHA 7

3. Grove • CHW 6

O'Neill • BOS 6

Borowy • NYY 6

6. Niggeling • WSH 5

Hausmann • BOS 5

Shirley • SLB 5

Trout • DET 5

Zuber • NYY 5

Bagby • CLE 5

Hit By Pitch

Times Hit by a Pitch.

1. Lee • CHW 10

2. Christopher • PHA 9

3. Gettel • NYY 7

Ferriss • BOS 7

Haefner • WSH 7

6. Lopat • CHW 6

7. Grove • CHW 5

O'Neill • BOS 5

Reynolds • CLE 5

10. Klieman • CLE 4

Gromek • CLE 4

Flores • PHA 4

Heflin • BOS 4

Tobin • DET 4

Batters Faced

1. Newhouser • DET 1,261

2. Newsom • PHA 1,116

3. Ferriss • BOS 1,103

4. Reynolds • CLE 1,074

5. Trout • DET 1,041

6. Potter • SLB 1,028

7. Gromek • CLE 1,026

8. Pieretti • WSH 1,020

9. Haefner • WSH 1,011

10. Wolff • WSH 1,000

Games Finished

Games Finished Credited to the last pitcher to appear for a team in a game. Complete Games are not counted as Games Finished.

1. Berry • PHA 40

2. Barrett • BOS 26

Turner • NYY 26

4. Johnson • CHW 19

5. Klieman • CLE 18

Carrasquel • WSH 18

7. Caster • 2TM 16

8. Caldwell • CHW 15

Holcombe • NYY 15

Ullrich • WSH 15

Adjusted ERA+

ERA+ 100*[lgERA/ERA] Adjusted to the player’s ballpark(s).

1. Newhouser • DET 195

2. Benton • DET 175

3. Wolff • WSH 146

4. Leonard • WSH 146

5. Potter • SLB 145

6. Lee • CHW 135

7. Hollingsworth • SLB 132

8. Gromek • CLE 127

9. Ferriss • BOS 115

10. Trout • DET 113

Fielding Independent Pitching

Fielding Independent Pitching this stat measures a pitcher's effectiveness at preventing HR, BB, HBP and causing SO <tt>(13*HR + 3*(BB+HBP) - 2*SO)/IP + Constantlg</tt> The constant is set so that each season major-league average FIP is the same as the major-league avg ERA

1. Newhouser • DET 2.63

2. Leonard • WSH 2.65

3. Wolff • WSH 2.87

4. Potter • SLB 3.03

5. Gromek • CLE 3.06

6. Lee • CHW 3.30

7. Trout • DET 3.32

8. Ferriss • BOS 3.35

9. Benton • DET 3.42

10. Bonham • NYY 3.43

Adj. Pitching Runs

Adjusted Pitching Runs A set of formulas developed by Gary Gillette, Pete Palmer and others that estimates a pitcher’s total contributions to a team’s runs total via linear weights. 0.0 is an avg performance, <0 is worse than avg and >0 is better than avg

1. Newhouser • DET 58

2. Potter • SLB 32

3. Wolff • WSH 30

4. Benton • DET 24

5. Gromek • CLE 21

6. Leonard • WSH 20

7. Lee • CHW 18

8. Hollingsworth • SLB 16

9. Berry • PHA 15

10. Muncrief • SLB 13

Adj. Pitching Wins

Adjusted Pitching Wins A set of formulas developed by Gary Gillette, Pete Palmer and others that estimates a pitcher’s total contributions to a team’s wins with his arm. 0.0 is an avg performance, <0 is worse than avg and >0 is better than avg

1. Newhouser • DET 6.8

2. Potter • SLB 3.7

3. Wolff • WSH 3.4

4. Benton • DET 2.7

5. Gromek • CLE 2.4

6. Leonard • WSH 2.2

7. Lee • CHW 2.1

8. Hollingsworth • SLB 1.8

9. Berry • PHA 1.6

10. Muncrief • SLB 1.5

Base-Out Runs Saved (RE24)

Base-Out Runs Saved Given the bases occupied/out situation, how many runs did the pitcher save in the resulting play. Compared to average, so 0 is average, and above 0 is better than average

1. Newhouser • DET 46.32

2. Wolff • WSH 36.65

3. Potter • SLB 28.70

4. Ferriss • BOS 26.46

5. Leonard • WSH 17.60

6. Benton • DET 16.81

7. Mueller • DET 16.67

8. Berry • PHA 14.89

9. Muncrief • SLB 12.50

10. Christopher • PHA 11.69

Win Probability Added (WPA)

Win Probability Added by Pitcher Given average teams, this is the change in probability. See <a href='https://www.baseball-reference.com/about/wpa.shtml'>Win Expectancy explainer</a> for details.

1. Wolff • WSH 5.5

2. Newhouser • DET 4.3

3. Ferriss • BOS 3.3

4. Christopher • PHA 3.1

5. Berry • PHA 3.0

6. Benton • DET 2.6

7. Mueller • DET 2.6

8. Leonard • WSH 1.9

9. Muncrief • SLB 1.7

10. Potter • SLB 1.6

Sit. Wins Saved (WPA/LI)

Situational Wins (WPA/LI) It is the sum of WPA divided by the leverage index for each play. WPA depends greatly on the context of the at bats. This stat does not.

1. Wolff • WSH 4.5

2. Newhouser • DET 4.2

3. Potter • SLB 3.1

4. Berry • PHA 2.3

5. Leonard • WSH 2.3

6. Mueller • DET 2.1

7. Christopher • PHA 1.6

8. Benton • DET 1.6

9. Gromek • CLE 1.4

10. Ferriss • BOS 1.4

Championship WPA (cWPA)

Championship Win Probability Added by Pitcher Given average teams, this is the change in probability of winning the World Series, displayed in percentage points. See <a href='https://www.baseball-reference.com/about/wpa.shtml'>Win Expectancy explainer</a> for details.

1. Wolff • WSH 18.2

2. Newhouser • DET 16.1

3. Mueller • DET 8.4

4. Ferriss • BOS 4.9

5. Benton • DET 4.4

6. Ruffing • NYY 2.0

7. Trout • DET 2.0

8. Oana • DET 2.0

9. Shirley • SLB 1.9

10. Christopher • PHA 1.9

Base-Out Wins Saved (REW)

Base-Out Wins Saved This is the number of wins above average the player was worth by their performance measured by the 24 base-out situations.

1. Newhouser • DET 5.2

2. Wolff • WSH 4.4

3. Potter • SLB 3.2

4. Ferriss • BOS 3.0

5. Leonard • WSH 2.0

6. Benton • DET 1.8

7. Mueller • DET 1.8

8. Berry • PHA 1.6

9. Muncrief • SLB 1.3

10. Christopher • PHA 1.3

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