| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 8.34 | 192107260_CHA_MIN |
| Eppa Rixey | CIN | 6.33 | 192107280_ATL_CIN |
| Carl Mays | NYA | 5.5 | 192107270_BAL_NYA |
| Jesse Barnes | SFN | 4.57 | 192107280_SFN_PIT |
| Pete Alexander | CHN | 4.49 | 192107260_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Shovel Hodge | CHA | -7.53 | 192107280_CHA_MIN |
| Dixie Davis | BAL | -2.37 | 192107280_BAL_NYA |
| Tom Zachary | MIN | -1.15 | 192107260_CHA_MIN |
| Jim Bagby | CLE | -0.84 | 192107280_CLE_BOS |
| Hooks Dauss | DET | -0.64 | 192107270_DET_OAK |
Based on accumulated WAA for this season up to 1921-07-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.89 | Red Faber | 231.7 | CHA |
| +003+ | 9.13 | Eppa Rixey | 188 | CIN |
| +010+ | 5.19 | George Mogridge | 183.3 | MIN |
| +012+ | 5.01 | Carl Mays | 203 | NYA |
| +013+ | 4.62 | Jesse Barnes | 153 | SFN |
| +014+ | 4.53 | Burleigh Grimes | 166 | LAN |
| +017+ | 4.45 | Pete Alexander | 139 | CHN |
| +020+ | 3.85 | Dolf Luque | 187.7 | CIN |
| +022+ | 3.8 | Sad Sam Jones | 193 | BOS |
| +023+ | 3.77 | Bill Doak | 119.7 | SLN |
| +024+ | 3.69 | Wilbur Cooper | 199 | PIT |
| +026+ | 3.36 | Whitey Glazner | 154 | PIT |
| +027+ | 3.25 | Waite Hoyt | 168.7 | NYA |
| +028+ | 3.24 | Babe Adams | 111.3 | PIT |
| +030+ | 3.22 | Hugh McQuillan | 172.3 | ATL |
| +032+ | 2.74 | Dana Fillingim | 142.3 | ATL |
| +036+ | 2.56 | Bob Shawkey | 136.7 | NYA |
| +037+ | 2.5 | Stan Coveleski | 205.7 | CLE |
| +039+ | 2.42 | Joe Oeschger | 175 | ATL |
| +042+ | 2.26 | Bullet Joe Bush | 139.7 | BOS |
| +050+ | 1.93 | Jack Scott | 142.7 | ATL |
| +057+ | 1.76 | Herb Pennock | 141 | BOS |
| +061+ | 1.72 | Allen Russell | 118.7 | BOS |
| +066+ | 1.56 | Earl Hamilton | 152.7 | PIT |
| +067+ | 1.52 | Rosy Ryan | 113.7 | SFN |
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