American League Pitching Leaders

Wins Above Replacement--all
1. Johnson • WSH 11.7
2. Coveleski • CLE 9.5
3. Perry • PHA 7.5
4. Ruth • BOS 7.0
5. Sisler • SLB 6.6
6. Cobb • DET 6.5
7. Burns • PHA 5.9
8. Speaker • CLE 5.5
9. Hooper • BOS 4.9
10. Baker • NYY 4.9
WAR for Pitchers
1. Johnson • WSH 10.4
2. Coveleski • CLE 9.9
3. Perry • PHA 8.2
4. Bagby • CLE 4.3
Harper • WSH 4.3
6. Boland • DET 4.2
Sothoron • SLB 4.2
8. Mogridge • NYY 4.0
9. Cicotte • CHW 3.6
10. Mays • BOS 3.5
Earned Run Average
1. Johnson • WSH 1.27
2. Coveleski • CLE 1.82
3. Sothoron • SLB 1.94
4. Perry • PHA 1.98
5. Bush • BOS 2.11
6. Harper • WSH 2.18
7. Mogridge • NYY 2.18
8. Mays • BOS 2.21
9. Ruth • BOS 2.22
10. Jones • BOS 2.25
Wins
1. Johnson • WSH 23
2. Coveleski • CLE 22
3. Mays • BOS 21
4. Perry • PHA 20
5. Bagby • CLE 17
6. Mogridge • NYY 16
Jones • BOS 16
Shaw • WSH 16
9. Bush • BOS 15
10. Morton • CLE 14
Boland • DET 14
Win-Loss %
1. Jones • BOS .762
2. Ruth • BOS .650
Coumbe • CLE .650
4. Johnson • WSH .639
5. Morton • CLE .636
6. Coveleski • CLE .629
7. Mays • BOS .618
8. Boland • DET .583
9. Leonard • BOS .571
Shaw • WSH .571
Gallia • SLB .571
Walks & Hits per IP
1. Johnson • WSH 0.954
2. Ruth • BOS 1.046
3. Sothoron • SLB 1.048
4. Mays • BOS 1.060
5. Coveleski • CLE 1.084
6. Mogridge • NYY 1.149
7. Enzmann • CLE 1.163
8. Harper • WSH 1.172
9. Cicotte • CHW 1.184
10. Boland • DET 1.191
Hits per 9 IP
1. Sothoron • SLB 6.545
2. Johnson • WSH 6.653
3. Harper • WSH 6.713
4. Ruth • BOS 6.764
5. Mays • BOS 7.057
6. Jones • BOS 7.386
7. Shaw • WSH 7.496
8. Coveleski • CLE 7.553
9. Boland • DET 7.765
10. Morton • CLE 7.924
Bases On Balls per 9 IP
1. Cicotte • CHW 1.353
2. Mogridge • NYY 1.617
3. Benz • CHW 1.636
4. Enzmann • CLE 1.910
5. Johnson • WSH 1.933
6. Dauss • DET 2.091
7. Coveleski • CLE 2.199
8. Cunningham • DET 2.443
9. Mays • BOS 2.485
10. Ayers • WSH 2.581
Strikeouts per 9 IP
1. Morton • CLE 5.157
2. Shaw • WSH 4.811
3. Johnson • WSH 4.472
4. Bush • BOS 4.126
5. Love • NYY 3.739
6. Cicotte • CHW 3.519
7. Mays • BOS 3.498
8. Kallio • DET 3.474
9. Russell • NYY 3.447
10. Danforth • CHW 3.108
Games Played
1. Bagby • CLE 45
Mogridge • NYY 45
3. Perry • PHA 44
4. Shaw • WSH 41
5. Ayers • WSH 40
6. Danforth • CHW 39
Johnson • WSH 39
8. Cicotte • CHW 38
Coveleski • CLE 38
Love • NYY 38
Saves
1. Mogridge • NYY 7
2. Bagby • CLE 6
3. Russell • NYY 4
Geary • PHA 4
5. Ayers • WSH 3
Coumbe • CLE 3
Johnson • WSH 3
Dauss • DET 3
9. Perry • PHA 2
Rogers • SLB 2
Houck • SLB 2
Gregg • PHA 2
Shellenback • CHW 2
Shocker • SLB 2
Enzmann • CLE 2
Danforth • CHW 2
Cicotte • CHW 2
Bush • BOS 2
Innings Pitched
1. Perry • PHA 332.1
2. Johnson • WSH 326.0
3. Coveleski • CLE 311.0
4. Mays • BOS 293.1
5. Bush • BOS 272.2
6. Bagby • CLE 271.1
7. Cicotte • CHW 266.0
8. Dauss • DET 249.2
9. Harper • WSH 244.0
10. Shaw • WSH 241.1
Strikeouts
1. Johnson • WSH 162
2. Shaw • WSH 129
3. Bush • BOS 125
4. Morton • CLE 123
5. Mays • BOS 114
6. Cicotte • CHW 104
7. Love • NYY 95
8. Coveleski • CLE 87
9. Perry • PHA 81
10. Harper • WSH 78
Games Started
1. Perry • PHA 36
2. Mays • BOS 33
Coveleski • CLE 33
4. Harper • WSH 32
5. Bagby • CLE 31
Bush • BOS 31
7. Shaw • WSH 30
Cicotte • CHW 30
9. Love • NYY 29
Johnson • WSH 29
Complete Games
1. Perry • PHA 30
Mays • BOS 30
3. Johnson • WSH 29
4. Bush • BOS 26
5. Coveleski • CLE 25
6. Cicotte • CHW 24
7. Bagby • CLE 23
8. Dauss • DET 21
9. Ruth • BOS 18
10. Gregg • PHA 17
Shutouts
1. Mays • BOS 8
Johnson • WSH 8
3. Bush • BOS 7
4. Jones • BOS 5
5. Ayers • WSH 4
Boland • DET 4
Shaw • WSH 4
8. Perry • PHA 3
Leonard • BOS 3
Harper • WSH 3
Gregg • PHA 3
Watson • PHA 3
Home Runs
1. Finneran • 2TM 7
2. Mogridge • NYY 6
Russell • NYY 6
4. Myers • PHA 4
Coumbe • CLE 4
Gregg • PHA 4
7. Love • NYY 3
Sothoron • SLB 3
Bush • BOS 3
Dauss • DET 3
James • DET 3
Rogers • SLB 3
Faber • CHW 3
Bases on Balls
1. Love • NYY 116
2. Perry • PHA 111
3. Harper • WSH 104
4. Adams • PHA 97
5. Bush • BOS 91
6. Shaw • WSH 90
7. Mays • BOS 81
8. Bagby • CLE 78
9. Morton • CLE 77
10. Kallio • DET 76
Coveleski • CLE 76
Hits
1. Perry • PHA 295
2. Cicotte • CHW 275
3. Bagby • CLE 274
4. Coveleski • CLE 261
5. Dauss • DET 243
6. Johnson • WSH 241
Bush • BOS 241
8. Mogridge • NYY 232
9. Mays • BOS 230
10. Ayers • WSH 215
Strikeouts / Base On Balls
1. Cicotte • CHW 2.600
2. Johnson • WSH 2.314
3. Morton • CLE 1.597
4. Mogridge • NYY 1.442
5. Shaw • WSH 1.433
6. Mays • BOS 1.407
7. Bush • BOS 1.374
8. Enzmann • CLE 1.310
9. Dauss • DET 1.259
10. Danforth • CHW 1.200
Home Runs per 9 IP
1. Cunningham • DET 0.000
Kallio • DET 0.000
Davenport • SLB 0.000
Watson • PHA 0.000
Bagby • CLE 0.000
6. Perry • PHA 0.027
7. Harper • WSH 0.037
8. Morton • CLE 0.042
9. Boland • DET 0.044
10. Jones • BOS 0.049
Losses
1. Perry • PHA 19
Cicotte • CHW 19
3. Bagby • CLE 16
Dauss • DET 16
5. Bush • BOS 15
Danforth • CHW 15
7. Gregg • PHA 14
8. Johnson • WSH 13
Kallio • DET 13
Mogridge • NYY 13
Mays • BOS 13
Coveleski • CLE 13
Earned Runs
1. Adams • PHA 83
Dauss • DET 83
3. Cicotte • CHW 82
4. Bagby • CLE 81
5. Love • NYY 78
6. Perry • PHA 73
Kallio • DET 73
8. Mays • BOS 72
9. Gregg • PHA 69
Ayers • WSH 69
Wild Pitches
1. Harper • WSH 13
2. Shaw • WSH 10
3. Johnson • WSH 8
4. Kallio • DET 7
Leonard • BOS 7
6. Jones • BOS 6
Mays • BOS 6
Myers • PHA 6
9. Bush • BOS 5
Dauss • DET 5
Enzmann • CLE 5
Hit By Pitch
1. Adams • PHA 12
2. Mays • BOS 11
3. Love • NYY 10
4. Dauss • DET 9
5. Jones • BOS 8
Johnson • WSH 8
Mogridge • NYY 8
Harper • WSH 8
9. Ayers • WSH 7
Davenport • SLB 7
Batters Faced
1. Perry • PHA 1,342
2. Johnson • WSH 1,261
3. Coveleski • CLE 1,254
4. Mays • BOS 1,162
5. Bush • BOS 1,119
6. Bagby • CLE 1,113
7. Cicotte • CHW 1,089
8. Dauss • DET 1,027
9. Harper • WSH 993
10. Shaw • WSH 986
Games Finished
1. Mogridge • NYY 23
2. Houck • SLB 22
3. Danforth • CHW 20
4. Ayers • WSH 15
5. Bagby • CLE 14
6. Enzmann • CLE 13
7. Cunningham • DET 12
8. Johnson • WSH 10
Coumbe • CLE 10
10. Finneran • 2TM 9
Rogers • SLB 9
Adams • PHA 9
Adjusted ERA+
1. Johnson • WSH 214
2. Coveleski • CLE 164
3. Perry • PHA 146
4. Sothoron • SLB 139
5. Mogridge • NYY 129
6. Bush • BOS 128
7. Enzmann • CLE 127
8. Harper • WSH 125
9. Mays • BOS 122
10. Ruth • BOS 122
Fielding Independent Pitching
1. Cicotte • CHW 2.02
2. Johnson • WSH 2.03
3. Morton • CLE 2.26
4. Shaw • WSH 2.40
5. Mays • BOS 2.48
6. Bush • BOS 2.49
7. Benz • CHW 2.51
8. Coveleski • CLE 2.53
9. Cunningham • DET 2.60
10. Danforth • CHW 2.61
Adj. Pitching Runs
1. Johnson • WSH 49
2. Coveleski • CLE 35
3. Perry • PHA 32
4. Bush • BOS 16
5. Mays • BOS 16
6. Sothoron • SLB 16
7. Mogridge • NYY 16
8. Harper • WSH 15
9. Faber • CHW 11
10. Ruth • BOS 10
Adj. Pitching Wins
1. Johnson • WSH 6.1
2. Coveleski • CLE 4.2
3. Perry • PHA 3.7
4. Bush • BOS 1.9
5. Mays • BOS 1.9
6. Sothoron • SLB 1.9
7. Mogridge • NYY 1.8
8. Harper • WSH 1.7
9. Faber • CHW 1.3
10. Ruth • BOS 1.2
Base-Out Runs Saved (RE24)
1. Perry • PHA 39.48
2. Coveleski • CLE 30.15
3. Johnson • WSH 24.68
4. Mays • BOS 20.82
5. Enzmann • CLE 17.59
6. Bush • BOS 15.25
7. Boland • DET 15.15
8. Russell • CHW 11.40
9. Ruth • BOS 10.16
10. Harper • WSH 9.44
Win Probability Added (WPA)
1. Coveleski • CLE 3.9
2. Johnson • WSH 3.7
3. Perry • PHA 3.6
4. Boland • DET 2.7
5. Bush • BOS 2.4
6. Morton • CLE 1.8
7. Ruth • BOS 1.7
8. Jones • BOS 1.7
9. Enzmann • CLE 1.6
10. Bagby • CLE 1.6
Sit. Wins Saved (WPA/LI)
1. Coveleski • CLE 4.0
2. Perry • PHA 3.8
3. Johnson • WSH 2.2
4. Morton • CLE 2.1
5. Mays • BOS 2.0
6. Cicotte • CHW 1.9
7. Bush • BOS 1.7
8. Enzmann • CLE 1.6
9. Boland • DET 1.5
10. Ruth • BOS 1.5
Championship WPA (cWPA)
1. Coveleski • CLE 9.1
2. Ruth • BOS 8.8
3. Bush • BOS 8.2
4. Jones • BOS 7.3
5. Morton • CLE 4.5
6. Mays • BOS 3.8
7. Thormahlen • NYY 3.6
8. Bagby • CLE 3.1
9. Johnson • WSH 3.1
10. Love • NYY 2.5
Base-Out Wins Saved (REW)
1. Perry • PHA 4.6
2. Coveleski • CLE 3.4
3. Johnson • WSH 2.9
4. Mays • BOS 2.5
5. Enzmann • CLE 2.0
6. Boland • DET 1.8
7. Bush • BOS 1.8
8. Russell • CHW 1.3
9. Ruth • BOS 1.2
10. Harper • WSH 1.1

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 batting rate stats, generally a minimum of 3.1 Plate Appearances/G, 1.0 IP/G, 0.67 Gm and Chances/Team Game (fielding), 0.2 SB att/Team Game (catchers), and 0.1 SB att/Team Game (baserunners only since 1951), and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. For pitcher fielding the minimums are reduced by a third. For LF, CF, RF fielding stats, we only have reliable data since 1901, so all leaders are since 1901. Explanation of min. requirements