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. Ripken • BAL 8.2
2. Boggs • BOS 7.8
3. Yount • MIL 7.3
4. Stieb • TOR 7.0
5. Henderson • OAK 6.9
6. Whitaker • DET 6.7
7. Murray • BAL 6.7
8. Lemon • DET 6.2
9. Trammell • DET 6.0
10. Moseby • TOR 6.0

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. Stieb • TOR 7.0
2. Quisenberry • KCR 5.5
3. McGregor • BAL 5.3
4. Guidry • NYY 5.3
5. Young • SEA 5.1
6. Dotson • CHW 5.1
7. Hough • TEX 4.6
8. Honeycutt • TEX 4.3
9. Beattie • SEA 4.3
10. Boddicker • BAL 4.1

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. Honeycutt • TEX 2.42
2. Boddicker • BAL 2.77
3. Stieb • TOR 3.04
4. Hough • TEX 3.18
5. McGregor • BAL 3.18
6. Dotson • CHW 3.23
7. Haas • MIL 3.27
8. Young • SEA 3.27
9. Zahn • CAL 3.33
10. Morris • DET 3.34

Wins

Wins

1. Hoyt • CHW 24
2. Dotson • CHW 22
3. Guidry • NYY 21
4. Morris • DET 20
5. Petry • DET 19
6. McGregor • BAL 18
7. Stieb • TOR 17
Sutcliffe • CLE 17
9. Bannister • CHW 16
Boddicker • BAL 16

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. Haas • MIL .813
2. Dotson • CHW .759
3. Flanagan • BAL .750
4. Gossage • NYY .722
5. McGregor • BAL .720
6. Hoyt • CHW .706
7. Guidry • NYY .700
Slaton • MIL .700
9. Kison • CAL .688
10. Boddicker • BAL .667

Walks & Hits per IP

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

1. Hoyt • CHW 1.024
2. Boddicker • BAL 1.078
3. Stieb • TOR 1.137
4. Morris • DET 1.158
5. Guidry • NYY 1.166
6. Honeycutt • TEX 1.174
7. Haas • MIL 1.184
8. Sutton • MIL 1.194
9. Righetti • NYY 1.203
10. Bannister • CHW 1.206

Hits per 9 IP

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

1. Boddicker • BAL 7.089
2. Stieb • TOR 7.219
3. Conroy • OAK 7.817
4. Hough • TEX 7.821
5. Dotson • CHW 7.838
6. Young • SEA 7.866
7. Morris • DET 7.876
8. Bannister • CHW 7.910
9. Wilcox • DET 7.935
10. Righetti • NYY 8.046

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. Hoyt • CHW 1.070
2. McGregor • BAL 1.558
3. John • CAL 1.879
4. Honeycutt • TEX 1.906
5. Eckersley • BOS 1.991
6. Caldwell • MIL 2.010
7. Haas • MIL 2.112
8. Guidry • NYY 2.157
9. Sutton • MIL 2.206
10. Zahn • CAL 2.261

Strikeouts per 9 IP

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

1. Bannister • CHW 7.992
2. Morris • DET 7.110
3. Righetti • NYY 7.009
4. Conroy • OAK 6.209
5. Gott • TOR 6.164
6. Stieb • TOR 6.054
7. Beattie • SEA 6.041
8. Boddicker • BAL 6.034
9. Burns • CHW 5.960
10. Sutcliffe • CLE 5.918

Games Played

Games Played or Pitched

1. Quisenberry • KCR 69
2. Vande Berg • SEA 68
3. Davis • MIN 66
4. Martinez • BAL 65
5. Stanley • BOS 64
6. Caudill • SEA 63
7. Frazier • NYY 61
Lysander • MIN 61
9. Spillner • CLE 60
Whitehouse • MIN 60

Saves

Saves

1. Quisenberry • KCR 45
2. Stanley • BOS 33
3. Davis • MIN 30
4. Caudill • SEA 26
5. Ladd • MIL 25
6. Gossage • NYY 22
7. Martinez • BAL 21
8. López • DET 18
9. Lamp • CHW 15
10. Barojas • CHW 12

Innings Pitched

Innings Pitched

1. Morris • DET 293.2
2. Stieb • TOR 278.0
3. Petry • DET 266.1
4. Hoyt • CHW 260.2
5. McGregor • BAL 260.0
6. Hough • TEX 252.0
7. Guidry • NYY 250.1
8. Sutcliffe • CLE 243.1
9. Tudor • BOS 242.0
10. Dotson • CHW 240.0

Strikeouts

Strikeouts

1. Morris • DET 232
2. Bannister • CHW 193
3. Stieb • TOR 187
4. Righetti • NYY 169
5. Sutcliffe • CLE 160
6. Guidry • NYY 156
7. Hough • TEX 152
8. Hoyt • CHW 148
9. Dotson • CHW 137
10. Tudor • BOS 136

Games Started

Games Started

1. Petry • DET 38
2. Morris • DET 37
3. Hoyt • CHW 36
McGregor • BAL 36
Stieb • TOR 36
6. Dotson • CHW 35
Leal • TOR 35
Sutcliffe • CLE 35
9. Bannister • CHW 34
Clancy • TOR 34
John • CAL 34
Sorensen • CLE 34
Tudor • BOS 34
Viola • MIN 34

Complete Games

Complete Game

1. Guidry • NYY 21
2. Morris • DET 20
3. Stieb • TOR 14
4. Rawley • NYY 13
5. McGregor • BAL 12
6. Hoyt • CHW 11
Hough • TEX 11
Zahn • CAL 11
Clancy • TOR 11
Forsch • CAL 11

Shutouts

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

1. Boddicker • BAL 5
2. Burns • CHW 4
Stieb • TOR 4
4. Hough • TEX 3
Zahn • CAL 3
Heaton • CLE 3
Haas • MIL 3
Guidry • NYY 3
9. Sutcliffe • CLE 2
Bannister • CHW 2
Honeycutt • TEX 2
Rawley • NYY 2
Righetti • NYY 2
Hurst • BOS 2
Petry • DET 2
Darwin • TEX 2
Codiroli • OAK 2
Tudor • BOS 2
Caldwell • MIL 2
Wilcox • DET 2
McCatty • OAK 2
Young • SEA 2
McGregor • BAL 2
Beattie • SEA 2
Moore • SEA 2

Home Runs

Home Runs Hit/Allowed

1. Petry • DET 37
2. Caldwell • MIL 35
3. Viola • MIN 34
4. Tudor • BOS 32
5. Morris • DET 30
6. Stoddard • SEA 29
7. Eckersley • BOS 27
Hoyt • CHW 27
9. Guidry • NYY 26
10. McGregor • BAL 24
Perry • 2TM 24

Bases on Balls

Bases on Balls/Walks

1. Dotson • CHW 106
2. Sutcliffe • CLE 102
3. Petry • DET 99
4. Conroy • OAK 98
5. Hough • TEX 95
6. Stieb • TOR 93
7. Viola • MIN 92
8. Morris • DET 83
9. McCatty • OAK 82
10. Tudor • BOS 81

Hits

Hits/Hits Allowed

1. John • CAL 287
2. McGregor • BAL 271
3. Caldwell • MIL 269
4. Morris • DET 257
5. Petry • DET 256
6. Sutcliffe • CLE 251
7. Rawley • NYY 246
8. Viola • MIN 242
9. Hurst • BOS 241
10. Clancy • TOR 238
Sorensen • CLE 238

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. Hoyt • CHW 4.774
2. Morris • DET 2.795
3. Bannister • CHW 2.718
4. Guidry • NYY 2.600
5. Righetti • NYY 2.522
6. Sutton • MIL 2.481
7. Boddicker • BAL 2.308
8. Burns • CHW 2.091
9. Stieb • TOR 2.011
10. Beattie • SEA 2.000

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. Darwin • TEX 0.443
2. Honeycutt • TEX 0.464
3. Righetti • NYY 0.498
4. Beattie • SEA 0.549
5. Smithson • TEX 0.564
6. Haas • MIL 0.603
7. Davis • BAL 0.629
8. Schrom • MIN 0.642
9. Boddicker • BAL 0.654
10. Stieb • TOR 0.680

Losses

Losses

1. Gura • KCR 18
2. Stoddard • SEA 17
3. Martínez • BAL 16
4. Beattie • SEA 15
Viola • MIN 15
Young • SEA 15
7. Gott • TOR 14
Rawley • NYY 14
Smithson • TEX 14
Williams • MIN 14
Witt • CAL 14
Perry • 2TM 14

Earned Runs

Earned Runs Allowed

1. Viola • MIN 128
2. Petry • DET 116
Sutcliffe • CLE 116
4. Caldwell • MIL 115
5. John • CAL 113
6. Eckersley • BOS 110
Tudor • BOS 110
8. Gura • KCR 109
Morris • DET 109
10. Hoyt • CHW 106

Wild Pitches

Wild Pitches

1. Morris • DET 18
2. Petry • DET 12
3. John • CAL 11
4. Clark • SEA 10
Righetti • NYY 10
Wilcox • DET 10
7. Eichelberger • CLE 9
Sorensen • CLE 9
Stewart • BAL 9
10. Bannister • CHW 8
Conroy • OAK 8
Curtis • CAL 8
Smithson • TEX 8
Tudor • BOS 8
Witt • CAL 8

Hit By Pitch

Times Hit by a Pitch.

1. Stieb • TOR 14
2. Blyleven • CLE 10
3. Schrom • MIN 9
4. Acker • TOR 8
Dotson • CHW 8
Gura • KCR 8
Smithson • TEX 8
Viola • MIN 8
9. Codiroli • OAK 7
Tanana • TEX 7
Young • SEA 7

Batters Faced

Batters Faced

1. Morris • DET 1,204
2. Stieb • TOR 1,141
3. Petry • DET 1,115
4. McGregor • BAL 1,072
5. Sutcliffe • CLE 1,061
6. Hoyt • CHW 1,034
7. Hough • TEX 1,030
8. Guidry • NYY 1,024
9. Tudor • BOS 1,022
10. John • CAL 1,010
Rawley • NYY 1,010

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. Quisenberry • KCR 62
2. Davis • MIN 61
3. Caudill • SEA 54
4. Stanley • BOS 53
5. Martinez • BAL 51
6. Gossage • NYY 47
7. López • DET 46
8. Spillner • CLE 41
9. Ladd • MIL 40
10. Sánchez • CAL 34
Stoddard • BAL 34

Adjusted ERA+

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

1. Honeycutt • TEX 165
2. Boddicker • BAL 143
3. Stieb • TOR 142
4. Young • SEA 131
5. Dotson • CHW 130
6. Hough • TEX 126
7. Bannister • CHW 125
8. McGregor • BAL 124
9. Zahn • CAL 122
10. Burns • CHW 118

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. Righetti • NYY 2.87
2. Bannister • CHW 3.12
3. Boddicker • BAL 3.23
4. Beattie • SEA 3.26
5. Hoyt • CHW 3.33
6. Morris • DET 3.38
7. Davis • BAL 3.40
8. Smithson • TEX 3.42
9. Darwin • TEX 3.45
10. Haas • MIL 3.51

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. Stieb • TOR 37
2. Quisenberry • KCR 32
3. Honeycutt • TEX 28
4. Dotson • CHW 27
5. Hough • TEX 25
6. McGregor • BAL 24
7. Boddicker • BAL 23
8. Morris • DET 21
9. Stanley • BOS 21
10. Bannister • 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. Stieb • TOR 3.9
2. Quisenberry • KCR 3.3
3. Honeycutt • TEX 3.0
4. Dotson • CHW 2.8
5. Hough • TEX 2.6
6. McGregor • BAL 2.4
7. Boddicker • BAL 2.4
8. Morris • DET 2.2
9. Bannister • CHW 2.1
10. Stanley • BOS 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. Stieb • TOR 40.70
2. Quisenberry • KCR 32.24
3. Dotson • CHW 31.13
4. Honeycutt • TEX 29.25
5. Hough • TEX 27.82
6. Morris • DET 27.58
7. McGregor • BAL 27.21
8. Bannister • CHW 24.97
9. Stanley • BOS 24.82
10. Boddicker • BAL 24.05

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. Quisenberry • KCR 4.4
2. Stanley • BOS 3.7
3. Martinez • BAL 3.5
4. Stieb • TOR 3.4
5. Dotson • CHW 3.2
6. Honeycutt • TEX 3.2
7. López • DET 3.2
8. Hoyt • CHW 2.9
9. Hough • TEX 2.7
10. McGregor • BAL 2.6

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. Stieb • TOR 3.5
2. Quisenberry • KCR 3.2
3. Hoyt • CHW 2.9
4. Bannister • CHW 2.8
5. Morris • DET 2.7
6. Honeycutt • TEX 2.5
7. Boddicker • BAL 2.4
8. Young • SEA 2.2
9. Righetti • NYY 2.1
10. Guidry • NYY 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. Martinez • BAL 4.9
2. McGregor • BAL 3.3
3. Stieb • TOR 3.2
4. Boddicker • BAL 3.2
5. Morris • DET 3.1
6. Quisenberry • KCR 3.1
7. Barojas • CHW 2.9
8. Davis • BAL 2.9
9. Honeycutt • TEX 2.7
10. Bannister • CHW 2.2

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. Stieb • TOR 4.2
2. Quisenberry • KCR 3.3
3. Dotson • CHW 3.2
4. Honeycutt • TEX 3.2
5. Hough • TEX 2.9
6. Morris • DET 2.9
7. McGregor • BAL 2.9
8. Boddicker • BAL 2.6
9. Bannister • CHW 2.6
10. Haas • MIL 2.5

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