1991 American League Pitching Leaders

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Other Leagues: Major Leagues, NL

Pennant Winner: Minnesota Twins

AL Most Valuable Player: Cal Ripken Jr.

AL Cy Young: Roger Clemens

AL Rookie of the Year: Chuck Knoblauch

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1991 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. Ripken • BAL 11.5

2. Clemens • BOS 7.9

3. Abbott • CAL 7.6

4. Langston • CAL 7.3

5. Griffey • SEA 7.1

6. Candiotti • 2TM 7.1

7. Thomas • CHW 7.0

8. Tapani • MIN 6.8

9. Whitaker • DET 6.8

10. Boggs • BOS 6.4

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. Clemens • BOS 7.9

2. Abbott • CAL 7.6

3. Langston • CAL 7.3

4. Candiotti • 2TM 7.1

5. Tapani • MIN 6.8

6. Ryan • TEX 5.2

7. Bosio • MIL 5.1

8. Saberhagen • KCR 5.1

9. Moore • OAK 4.6

10. Erickson • MIN 4.4

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. Clemens • BOS 2.62

2. Candiotti • 2TM 2.65

3. Wegman • MIL 2.84

4. Abbott • CAL 2.89

5. Ryan • TEX 2.91

6. Moore • OAK 2.96

7. Tapani • MIN 2.99

8. Langston • CAL 3.00

9. Key • TOR 3.05

10. Saberhagen • KCR 3.07

Wins

1. Erickson • MIN 20

Gullickson • DET 20

3. Langston • CAL 19

4. Abbott • CAL 18

Clemens • BOS 18

Finley • CAL 18

Morris • MIN 18

8. McDowell • CHW 17

Moore • OAK 17

10. Key • TOR 16

Sanderson • NYY 16

Tapani • MIN 16

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. Hesketh • BOS .750

2. Erickson • MIN .714

3. Langston • CAL .704

4. Gullickson • DET .690

5. Wegman • MIL .682

6. Moore • OAK .680

7. Ryan • TEX .667

Finley • CAL .667

9. Stottlemyre • TOR .652

10. Guzmán • TEX .650

Walks & Hits per IP

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

1. Ryan • TEX 1.006

2. Clemens • BOS 1.047

3. Saberhagen • KCR 1.070

4. Tapani • MIN 1.086

5. Sanderson • NYY 1.101

6. Wegman • MIL 1.117

7. Swindell • CLE 1.143

8. Candiotti • 2TM 1.155

9. McDowell • CHW 1.159

10. Langston • CAL 1.161

Hits per 9 IP

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

1. Ryan • TEX 5.306

2. Johnson • SEA 6.750

3. Langston • CAL 6.942

4. Clemens • BOS 7.264

5. McDowell • CHW 7.522

6. Hough • CHW 7.540

7. Moore • OAK 7.543

8. Saberhagen • KCR 7.564

9. Candiotti • 2TM 7.639

10. Stottlemyre • TOR 7.973

Bases On Balls per 9 IP

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

1. Swindell • CLE 1.172

2. Sanderson • NYY 1.255

3. Tapani • MIN 1.475

4. Gullickson • DET 1.750

5. Wegman • MIL 1.862

6. Key • TOR 1.892

7. Saberhagen • KCR 2.063

8. Clemens • BOS 2.156

9. Wells • TOR 2.224

10. Bosio • MIL 2.550

Strikeouts per 9 IP

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

1. Ryan • TEX 10.561

2. Johnson • SEA 10.192

3. Clemens • BOS 7.994

4. Hanson • SEA 7.368

5. Appier • KCR 6.848

6. Fernandez • CHW 6.809

7. McDowell • CHW 6.777

8. Finley • CAL 6.770

9. Langston • CAL 6.686

10. Guzmán • TEX 6.631

Games Played

Games Played or Pitched

1. Ward • TOR 81

2. Jackson • SEA 72

Olson • BAL 72

4. Swift • SEA 71

5. Eichhorn • CAL 70

Jeffcoat • TEX 70

7. Cadaret • NYY 68

Gibson • DET 68

Russell • TEX 68

10. Eckersley • OAK 67

Harvey • CAL 67

Montgomery • KCR 67

Radinsky • CHW 67

Thigpen • CHW 67

Saves

1. Harvey • CAL 46

2. Eckersley • OAK 43

3. Aguilera • MIN 42

4. Reardon • BOS 40

5. Montgomery • KCR 33

6. Henke • TOR 32

7. Olson • BAL 31

8. Thigpen • CHW 30

Russell • TEX 30

10. Ward • TOR 23

Farr • NYY 23

Innings Pitched

1. Clemens • BOS 271.1

2. McDowell • CHW 253.2

3. Morris • MIN 246.2

4. Langston • CAL 246.1

5. Tapani • MIN 244.0

6. Abbott • CAL 243.0

7. Swindell • CLE 238.0

Candiotti • 2TM 238.0

9. Navarro • MIL 234.0

10. Finley • CAL 227.1

Strikeouts

1. Clemens • BOS 241

2. Johnson • SEA 228

3. Ryan • TEX 203

4. McDowell • CHW 191

5. Langston • CAL 183

6. Finley • CAL 171

7. Swindell • CLE 169

8. Gordon • KCR 167

Candiotti • 2TM 167

10. Morris • MIN 163

Games Started

1. Clemens • BOS 35

Gullickson • DET 35

McDowell • CHW 35

Morris • MIN 35

Stewart • OAK 35

Welch • OAK 35

7. Abbott • CAL 34

Finley • CAL 34

Langston • CAL 34

Navarro • MIL 34

Sanderson • NYY 34

Stottlemyre • TOR 34

Tapani • MIN 34

Candiotti • 2TM 34

Complete Games

Complete Game

1. McDowell • CHW 15

2. Clemens • BOS 13

3. Navarro • MIL 10

Morris • MIN 10

5. Terrell • DET 8

6. Wegman • MIL 7

Swindell • CLE 7

Welch • OAK 7

Saberhagen • KCR 7

Langston • CAL 7

Shutouts

Shutouts No runs allowed and a complete game.

1. Clemens • BOS 4

2. McDowell • CHW 3

Appier • KCR 3

Erickson • MIN 3

Holman • SEA 3

6. Finley • CAL 2

Ryan • TEX 2

Key • TOR 2

Saberhagen • KCR 2

Sanderson • NYY 2

Tanana • DET 2

Navarro • MIL 2

Terrell • DET 2

Wegman • MIL 2

Morris • MIN 2

Home Runs

Home Runs Hit/Allowed

1. DeLucia • SEA 31

2. Langston • CAL 30

3. Tanana • DET 26

4. Welch • OAK 25

5. Anderson • MIN 24

Stewart • OAK 24

Wells • TOR 24

8. Finley • CAL 23

Hibbard • CHW 23

Tapani • MIN 23

Bases on Balls

Bases on Balls/Walks

1. Johnson • SEA 152

2. Moore • OAK 105

Stewart • OAK 105

4. Finley • CAL 101

5. Langston • CAL 96

6. Hough • CHW 94

7. Morris • MIN 92

8. Welch • OAK 91

9. Brown • TEX 90

10. Fernandez • CHW 88

Hits

Hits/Hits Allowed

1. Terrell • DET 257

2. Gullickson • DET 256

3. Stewart • OAK 245

4. Swindell • CLE 241

5. Navarro • MIL 237

6. Brown • TEX 233

7. Nagy • CLE 228

8. Morris • MIN 226

9. Tapani • MIN 225

10. Abbott • CAL 222

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. Swindell • CLE 5.452

2. Sanderson • NYY 4.483

3. Clemens • BOS 3.708

4. Tapani • MIN 3.375

5. Saberhagen • KCR 3.022

6. Key • TOR 2.841

7. Ryan • TEX 2.819

8. Appier • KCR 2.590

9. Hanson • SEA 2.554

10. McDowell • CHW 2.329

Home Runs per 9 IP

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

1. Candiotti • 2TM 0.454

2. Moore • OAK 0.471

3. Clemens • BOS 0.498

4. Key • TOR 0.516

5. Abbott • CAL 0.519

6. Guzmán • TEX 0.530

7. Saberhagen • KCR 0.550

8. Appier • KCR 0.563

9. Erickson • MIN 0.574

10. Ryan • TEX 0.624

Losses

1. McCaskill • CAL 19

2. Swindell • CLE 16

3. Nagy • CLE 15

4. Gordon • KCR 14

Holman • SEA 14

Terrell • DET 14

7. DeLucia • SEA 13

Fernandez • CHW 13

Welch • OAK 13

Candiotti • 2TM 13

Earned Runs

Earned Runs Allowed

1. Stewart • OAK 130

2. Welch • OAK 112

3. Brown • TEX 103

DeLucia • SEA 103

Terrell • DET 103

6. Navarro • MIL 102

7. Gullickson • DET 98

8. Nagy • CLE 97

9. Fernandez • CHW 96

Finley • CAL 96

McDowell • CHW 96

Wild Pitches

1. Morris • MIN 15

2. Hanson • SEA 14

Moore • OAK 14

4. Stewart • OAK 13

5. Brown • TEX 12

Johnson • SEA 12

7. Perez • CHW 11

Candiotti • 2TM 11

9. DeLucia • SEA 10

Guzmán • TOR 10

Krueger • SEA 10

Leary • NYY 10

McDowell • CHW 10

Navarro • MIL 10

Robinson • CAL 10

Wells • TOR 10

Hit By Pitch

Times Hit by a Pitch.

1. Boddicker • KCR 13

Brown • TEX 13

3. Johnson • SEA 12

Stottlemyre • TOR 12

5. Hough • CHW 11

Welch • OAK 11

7. Holman • SEA 10

8. Saberhagen • KCR 9

Stewart • OAK 9

10. Bosio • MIL 8

Finley • CAL 8

Batters Faced

1. Clemens • BOS 1,077

2. Morris • MIN 1,032

3. McDowell • CHW 1,028

4. Stewart • OAK 1,014

5. Abbott • CAL 1,002

Navarro • MIL 1,002

7. Langston • CAL 992

8. Candiotti • 2TM 981

9. Tapani • MIN 974

10. Swindell • CLE 971

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. Harvey • CAL 63

2. Olson • BAL 62

3. Aguilera • MIN 60

4. Eckersley • OAK 59

5. Thigpen • CHW 58

6. Russell • TEX 56

7. Montgomery • KCR 55

8. Reardon • BOS 51

9. Henneman • DET 50

10. Farr • NYY 48

Adjusted ERA+

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

1. Clemens • BOS 165

2. Candiotti • 2TM 159

3. Tapani • MIN 143

4. Abbott • CAL 142

5. Wegman • MIL 142

6. Ryan • TEX 140

7. Key • TOR 139

8. Langston • CAL 137

9. Saberhagen • KCR 135

10. Erickson • MIN 135

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. Clemens • BOS 2.57

2. Ryan • TEX 2.75

3. Swindell • CLE 3.01

4. Appier • KCR 3.06

5. Key • TOR 3.08

6. Saberhagen • KCR 3.09

7. Candiotti • 2TM 3.10

8. Abbott • CAL 3.27

9. McDowell • CHW 3.34

10. Hanson • SEA 3.41

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. Clemens • BOS 46

2. Candiotti • 2TM 38

3. Tapani • MIN 36

4. Abbott • CAL 33

5. Langston • CAL 31

6. Ryan • TEX 24

7. Key • TOR 24

8. Erickson • MIN 23

9. Frohwirth • BAL 22

10. Saberhagen • KCR 22

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. Clemens • BOS 5.0

2. Candiotti • 2TM 4.1

3. Tapani • MIN 3.8

4. Abbott • CAL 3.5

5. Langston • CAL 3.3

6. Ryan • TEX 2.5

7. Key • TOR 2.5

8. Erickson • MIN 2.4

9. Saberhagen • KCR 2.3

10. Frohwirth • BAL 2.3

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. Clemens • BOS 45.28

2. Candiotti • 2TM 40.19

3. Tapani • MIN 38.32

4. Abbott • CAL 36.32

5. Langston • CAL 28.67

6. Moore • OAK 27.76

7. Flanagan • BAL 27.06

8. McDowell • CHW 26.92

9. Ryan • TEX 26.84

10. Wegman • MIL 25.84

Win Probability Added (WPA)

Win Probability Added by Pitcher Given average teams, this is the change in probability. A change of +/- 1 would indicate one win added or lost.

1. Montgomery • KCR 4.1

2. Henneman • DET 4.1

3. Saberhagen • KCR 3.9

4. Clemens • BOS 3.9

5. Candiotti • 2TM 3.8

6. Ward • TOR 3.5

7. Abbott • CAL 3.5

8. Langston • CAL 3.2

9. Moore • OAK 3.1

10. McDowell • CHW 3.1

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. Clemens • BOS 5.3

2. Candiotti • 2TM 3.8

3. Abbott • CAL 3.5

4. Tapani • MIN 3.4

5. Ryan • TEX 3.2

6. Saberhagen • KCR 3.2

7. Wegman • MIL 2.9

8. McDowell • CHW 2.7

9. Ward • TOR 2.6

10. Bosio • MIL 2.5

Championship WPA (cWPA)

Championship Win Probability Added by Pitcher Given average teams, this is the change in probability, displayed in percentage points. A change of +/- 100% would indicate one world series win added or lost.

1. Candiotti • 2TM 5.2

2. Clemens • BOS 5.2

3. Ward • TOR 4.5

4. Key • TOR 4.3

5. Guzmán • TOR 4.3

6. Tapani • MIN 3.8

7. Wells • TOR 3.7

8. Henke • TOR 3.7

9. Henneman • DET 3.7

10. Stottlemyre • TOR 3.0

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. Clemens • BOS 4.8

2. Candiotti • 2TM 4.3

3. Tapani • MIN 4.0

4. Abbott • CAL 3.9

5. Moore • OAK 3.0

6. Langston • CAL 3.0

7. McDowell • CHW 2.9

Ryan • TEX 2.9

9. Flanagan • BAL 2.8

10. Wegman • MIL 2.8

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