| Starter | Tm | Tier | Game |
|---|---|---|---|
| Burleigh Grimes | LAN | 5.94 | 192109271_LAN_ATL |
| Eppa Rixey | CIN | 4.73 | 192109270_CIN_CHN |
| Bill Doak | SLN | 3.35 | 192109291_PIT_SLN |
| Whitey Glazner | PIT | 1.87 | 192109270_PHI_PIT |
| Sad Sam Jones | BOS | 1.8 | 192109290_MIN_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dickey Kerr | CHA | -4.45 | 192109290_CLE_CHA |
| Rollie Naylor | OAK | -2.08 | 192109280_BOS_OAK |
| Virgil Cheeves | CHN | -0.72 | 192109270_CIN_CHN |
| Bob Shawkey | NYA | -0.54 | 192109290_NYA_OAK |
| Garland Braxton | ATL | -0.37 | 192109272_LAN_ATL |
Based on accumulated WAA for this season up to 1921-09-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 12.11 | Red Faber | 321.7 | CHA |
| +009+ | 8.48 | Eppa Rixey | 293.7 | CIN |
| +011+ | 8.02 | Burleigh Grimes | 293.3 | LAN |
| +012+ | 7.66 | Carl Mays | 327 | NYA |
| +013+ | 7.16 | Bill Doak | 208.7 | SLN |
| +017+ | 6.73 | George Mogridge | 279.7 | MIN |
| +018+ | 6.13 | Whitey Glazner | 232 | PIT |
| +019+ | 6.02 | Waite Hoyt | 278.7 | NYA |
| +020+ | 5.89 | Sad Sam Jones | 298.7 | BOS |
| +022+ | 5.59 | Jesse Barnes | 258.7 | SFN |
| +024+ | 4.98 | Wilbur Cooper | 318 | PIT |
| +026+ | 4.84 | Dolf Luque | 304 | CIN |
| +027+ | 4.82 | Clarence Mitchell | 181 | LAN |
| +028+ | 4.79 | Babe Adams | 160 | PIT |
| +032+ | 4.43 | Stan Coveleski | 306.3 | CLE |
| +037+ | 3.97 | Bill Pertica | 206 | SLN |
| +038+ | 3.95 | Pete Alexander | 246.3 | CHN |
| +040+ | 3.7 | Urban Shocker | 326.7 | BAL |
| +041+ | 3.63 | Rube Marquard | 255.7 | CIN |
| +044+ | 3.53 | Johnny Morrison | 144 | PIT |
| +045+ | 3.46 | Bullet Joe Bush | 244.3 | BOS |
| +046+ | 3.22 | Joe Oeschger | 299 | ATL |
| +048+ | 3.18 | Jesse Haines | 235.3 | SLN |
| +049+ | 3.17 | Walter Johnson | 255 | MIN |
| +051+ | 2.96 | Dana Fillingim | 239.7 | ATL |
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