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. Ohtani • LAA 9.9
2. Semien • TEX 7.7
3. Cole • NYY 7.4
4. Seager • TEX 7.2
5. Henderson • BAL 6.1
6. Gray • MIN 5.6
7. Rodríguez • SEA 5.5
Tucker • HOU 5.5
9. Franco • TBR 5.4
10. Robert • CHW 5.3

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. Cole • NYY 7.4
2. Gray • MIN 5.6
3. Bradish • BAL 4.8
4. Bibee • CLE 3.9
5. Ohtani • LAA 3.8
6. Kirby • SEA 3.8
7. Eflin • TBR 3.6
8. Gausman • TOR 3.5
9. López • MIN 3.4
10. King • NYY 3.3

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. Cole • NYY 2.63
2. Gray • MIN 2.79
3. Bradish • BAL 2.83
4. Gausman • TOR 3.16
5. Castillo • SEA 3.34
6. Kirby • SEA 3.35
7. Valdez • HOU 3.45
8. Eflin • TBR 3.50
9. Bassitt • TOR 3.60
10. Berríos • TOR 3.65

Wins

Wins

1. Bassitt • TOR 16
Eflin • TBR 16
3. Cole • NYY 15
Gibson • BAL 15
5. Castillo • SEA 14
6. Gilbert • SEA 13
Kirby • SEA 13
Kremer • BAL 13
Rodríguez • DET 13
10. Bello • BOS 12
Bradish • BAL 12
Dunning • TEX 12
Eovaldi • TEX 12
Gausman • TOR 12
Poche • TBR 12
Valdez • HOU 12

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. Cole • NYY .789
2. Kremer • BAL .722
3. Eovaldi • TEX .706
4. Bassitt • TOR .667
Eflin • TBR .667
6. Gilbert • SEA .650
7. Kikuchi • TOR .647
France • HOU .647
9. Dunning • TEX .632
Bradish • BAL .632

Walks & Hits per IP

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

1. Cole • NYY 0.981
2. Eflin • TBR 1.024
3. Kirby • SEA 1.038
4. Bradish • BAL 1.043
5. Gilbert • SEA 1.075
6. Castillo • SEA 1.096
7. Valdez • HOU 1.126
8. Gray • MIN 1.147
9. López • MIN 1.155
10. Bassitt • TOR 1.175

Hits per 9 IP

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

1. Cole • NYY 6.761
2. Bradish • BAL 7.043
3. Castillo • SEA 7.310
4. Valdez • HOU 7.545
5. Gray • MIN 7.630
6. Bassitt • TOR 7.920
7. Gausman • TOR 7.930
8. Javier • HOU 7.944
9. Gilbert • SEA 7.977
10. Eflin • TBR 8.004

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. Kirby • SEA 0.897
2. Eflin • TBR 1.216
3. Gilbert • SEA 1.699
4. Cole • NYY 2.067
5. López • MIN 2.227
6. Lyles • KCR 2.280
7. Bradish • BAL 2.348
8. Berríos • TOR 2.467
9. Castillo • SEA 2.558
10. Kikuchi • TOR 2.577

Strikeouts per 9 IP

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

1. Gausman • TOR 11.530
2. Cease • CHW 10.881
3. López • MIN 10.856
4. Castillo • SEA 10.005
5. Giolito • 3TM 9.960
6. Kikuchi • TOR 9.716
7. Cole • NYY 9.560
8. Eflin • TBR 9.422
9. Valdez • HOU 9.091
10. Bradish • BAL 8.964

Games Played

Games Played or Pitched

1. Brash • SEA 78
2. Clase • CLE 75
Topa • SEA 75
4. García • TOR 73
5. Abreu • HOU 72
Cano • BAL 72
7. Jax • MIN 71
Neris • HOU 71
Stephan • CLE 71
10. De Los Santos • CLE 70
Foley • DET 70

Saves

Saves

1. Clase • CLE 44
2. Romano • TOR 36
3. Bautista • BAL 33
4. Estévez • LAA 31
Pressly • HOU 31
6. Jansen • BOS 29
7. Duran • MIN 27
8. Lange • DET 26
9. Fairbanks • TBR 25
10. Holmes • NYY 24

Innings Pitched

Innings Pitched

1. Cole • NYY 209.0
2. Bassitt • TOR 200.0
3. Valdez • HOU 198.0
4. Castillo • SEA 197.0
5. López • MIN 194.0
6. Gibson • BAL 192.0
7. Gilbert • SEA 190.2
Kirby • SEA 190.2
9. Berríos • TOR 189.2
10. Gausman • TOR 185.0

Strikeouts

Strikeouts

1. Gausman • TOR 237
2. López • MIN 234
3. Cole • NYY 222
4. Castillo • SEA 219
5. Cease • CHW 214
6. Giolito • 3TM 204
7. Valdez • HOU 200
8. Ryan • MIN 197
9. Gilbert • SEA 189
10. Bassitt • TOR 186
Eflin • TBR 186

Games Started

Games Started

1. Bassitt • TOR 33
Castillo • SEA 33
Cease • CHW 33
Cole • NYY 33
Gibson • BAL 33
Giolito • 3TM 33
7. Berríos • TOR 32
Gilbert • SEA 32
Gray • MIN 32
Kikuchi • TOR 32
Kremer • BAL 32
López • MIN 32
Schmidt • NYY 32
Sears • OAK 32

Complete Games

Complete Game

1. Lyles • KCR 3
2. Clevinger • CHW 2
Cole • NYY 2
Eovaldi • TEX 2
Valdez • HOU 2
6. Bassitt • TOR 1
Bieber • CLE 1
Germán • NYY 1
Gilbert • SEA 1
Gray • TEX 1
Kirby • SEA 1
López • MIN 1
Ohtani • LAA 1
Ryan • MIN 1

Shutouts

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

1. Cole • NYY 2
Valdez • HOU 2
3. Bassitt • TOR 1
Eovaldi • TEX 1
Germán • NYY 1
Gilbert • SEA 1
López • MIN 1
Ohtani • LAA 1
Ryan • MIN 1

Home Runs

Home Runs Hit/Allowed

1. Giolito • 3TM 41
2. Lyles • KCR 39
3. Sears • OAK 34
4. Ryan • MIN 32
5. Gilbert • SEA 29
Kopech • CHW 29
7. Bassitt • TOR 28
Castillo • SEA 28
Lynn • CHW 28
10. Kikuchi • TOR 27
Kremer • BAL 27

Bases on Balls

Bases on Balls/Walks

1. Kopech • CHW 91
2. Cease • CHW 79
3. Sandoval • LAA 74
4. Giolito • 3TM 73
5. Waldichuk • OAK 71
6. Anderson • LAA 64
7. Javier • HOU 62
8. Detmers • LAA 60
Heaney • TEX 60
10. Bassitt • TOR 59
Manoah • TOR 59

Hits

Hits/Hits Allowed

1. Gibson • BAL 198
2. Singer • KCR 182
3. Kirby • SEA 179
4. Bassitt • TOR 176
López • MIN 176
Lyles • KCR 176
7. Berríos • TOR 173
8. Cease • CHW 172
9. Kremer • BAL 171
10. Gilbert • SEA 169
Schmidt • NYY 169
Giolito • 3TM 169

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. Kirby • SEA 9.053
2. Eflin • TBR 7.750
3. Gilbert • SEA 5.250
4. López • MIN 4.875
5. Cole • NYY 4.625
6. Gausman • TOR 4.309
7. Castillo • SEA 3.911
8. Bradish • BAL 3.818
9. Kikuchi • TOR 3.771
10. Berríos • TOR 3.538

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. Gray • MIN 0.391
2. Bradish • BAL 0.747
3. Cole • NYY 0.861
4. Valdez • HOU 0.864
5. Gausman • TOR 0.924
6. Eflin • TBR 0.962
7. Cease • CHW 0.966
8. Kirby • SEA 1.038
9. Dunning • TEX 1.042
10. Gibson • BAL 1.078

Losses

Losses

1. Lyles • KCR 17
2. Greinke • KCR 15
Giolito • 3TM 15
4. Sears • OAK 14
5. Brown • HOU 13
Sandoval • LAA 13
Wentz • DET 13
8. Berríos • TOR 12
Kopech • CHW 12
10. Bello • BOS 11
Singer • KCR 11
Valdez • HOU 11

Earned Runs

Earned Runs Allowed

1. Lyles • KCR 124
2. Gibson • BAL 101
3. Giolito • 3TM 100
4. Singer • KCR 98
5. Cease • CHW 90
6. Brown • HOU 88
7. Sears • OAK 87
8. Lynn • CHW 86
9. Anderson • LAA 85
10. Waldichuk • OAK 84

Wild Pitches

Wild Pitches

1. Cease • CHW 14
2. Ohtani • LAA 12
3. Brash • SEA 11
Glasnow • TBR 11
Medina • OAK 11
Schmidt • NYY 11
7. Lyles • KCR 10
8. Bradish • BAL 9
Cisnero • DET 9
Kopech • CHW 9
Rodón • NYY 9
Chapman • 2TM 9

Hit By Pitch

Times Hit by a Pitch.

1. Sears • OAK 16
2. Detmers • LAA 13
3. Bassitt • TOR 12
4. Kopech • CHW 11
Ohtani • LAA 11
Schmidt • NYY 11
7. Dunning • TEX 10
Heaney • TEX 10
Kelly • TBR 10
Valdez • HOU 10

Batters Faced

Batters Faced

1. Bassitt • TOR 826
2. Cole • NYY 821
3. Valdez • HOU 808
4. Gibson • BAL 807
5. Castillo • SEA 802
6. López • MIN 801
7. Giolito • 3TM 794
8. Cease • CHW 784
9. Berríos • TOR 782
10. Gilbert • SEA 770

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. Clase • CLE 65
2. Pressly • HOU 56
3. Estévez • LAA 49
Romano • TOR 49
5. Bautista • BAL 46
6. Lange • DET 45
7. Jansen • BOS 42
8. Duran • MIN 41
Holmes • NYY 41
Smith • TEX 41

Adjusted ERA+

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

1. Cole • NYY 165
2. Gray • MIN 157
3. Bradish • BAL 144
4. Gausman • TOR 136
5. Valdez • HOU 123
6. Eflin • TBR 120
7. López • MIN 119
8. Bassitt • TOR 119
9. Castillo • SEA 118
10. Kirby • SEA 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. Gray • MIN 2.83
2. Gausman • TOR 2.97
3. Eflin • TBR 3.01
4. Cole • NYY 3.16
5. Bradish • BAL 3.27
6. López • MIN 3.33
7. Kirby • SEA 3.34
8. Valdez • HOU 3.50
9. Cease • CHW 3.72
10. Castillo • SEA 3.81

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. Cole • NYY 40
2. Gray • MIN 33
3. Bradish • BAL 26
4. Gausman • TOR 22
5. Holton • DET 21
6. Bibee • CLE 21
7. Abreu • HOU 19
8. Martin • BOS 19
9. Neris • HOU 19
10. Ohtani • LAA 19

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. Cole • NYY 4.2
2. Gray • MIN 3.5
3. Bradish • BAL 2.7
4. Gausman • TOR 2.3
5. Bibee • CLE 2.2
6. Holton • DET 2.1
7. Abreu • HOU 1.9
8. Martin • BOS 1.9
Ohtani • LAA 1.9
10. Neris • HOU 1.9

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. Cole • NYY 46.77
2. Gray • MIN 39.03
3. Bradish • BAL 27.86
4. Martin • BOS 25.77
5. Holton • DET 24.31
6. Bibee • CLE 23.65
7. López • MIN 23.20
8. Bautista • BAL 22.46
9. Neris • HOU 21.31
10. Abreu • HOU 20.76

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. Cole • NYY 4.7
2. Bautista • BAL 4.5
3. Neris • HOU 3.8
4. Martin • BOS 3.8
5. Swanson • TOR 3.4
6. Gray • MIN 3.2
7. Romano • TOR 2.8
8. Foley • DET 2.8
9. Sewald • SEA 2.8
10. Cano • BAL 2.7

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. Cole • NYY 4.9
2. Gray • MIN 3.7
3. Bradish • BAL 2.7
4. Eflin • TBR 2.4
5. Holton • DET 2.3
6. Rodríguez • DET 2.3
7. Kirby • SEA 2.1
8. Bibee • CLE 2.0
9. López • MIN 2.0
10. Skubal • DET 1.8

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. Neris • HOU 5.4
2. Bautista • BAL 3.5
3. Abreu • HOU 3.1
4. Montgomery • TEX 2.4
5. Verlander • HOU 2.3
6. Romano • TOR 2.1
7. Dunning • TEX 2.0
8. Swanson • TOR 1.9
9. Cole • NYY 1.8
10. Eflin • TBR 1.6

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. Cole • NYY 5.0
2. Gray • MIN 4.1
3. Bradish • BAL 3.0
4. Martin • BOS 2.5
5. Bibee • CLE 2.5
6. Holton • DET 2.4
7. López • MIN 2.4
8. Bautista • BAL 2.3
9. Neris • HOU 2.1
10. Eflin • TBR 2.1

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