| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rollie Naylor | OAK | -2.08 | 192109280_BOS_OAK |
| Bill Hubbell | PHI | -0.99 | 192109260_PHI_PIT |
| Virgil Cheeves | CHN | -0.72 | 192109270_CIN_CHN |
| John Russell | CHA | -0.66 | 192109260_CHA_OAK |
| Garland Braxton | ATL | -0.37 | 192109272_LAN_ATL |
Based on accumulated WAA for this season up to 1921-09-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 12.16 | Red Faber | 321.7 | CHA |
| +009+ | 8.53 | Eppa Rixey | 293.7 | CIN |
| +011+ | 8.06 | Burleigh Grimes | 293.3 | LAN |
| +012+ | 7.71 | Carl Mays | 327 | NYA |
| +013+ | 7.17 | Bill Doak | 202 | SLN |
| +017+ | 6.75 | George Mogridge | 279.7 | MIN |
| +018+ | 6.1 | Whitey Glazner | 232 | PIT |
| +019+ | 6.06 | Waite Hoyt | 278.7 | NYA |
| +021+ | 5.63 | Jesse Barnes | 258.7 | SFN |
| +022+ | 5.5 | Sad Sam Jones | 289.7 | BOS |
| +024+ | 5.16 | Wilbur Cooper | 309 | PIT |
| +025+ | 4.89 | Dolf Luque | 304 | CIN |
| +026+ | 4.84 | Clarence Mitchell | 181 | LAN |
| +027+ | 4.76 | Babe Adams | 160 | PIT |
| +032+ | 4.45 | Stan Coveleski | 306.3 | CLE |
| +037+ | 3.99 | Pete Alexander | 246.3 | CHN |
| +038+ | 3.98 | Bill Pertica | 206 | SLN |
| +039+ | 3.75 | Urban Shocker | 326.7 | BAL |
| +040+ | 3.68 | Johnny Morrison | 139 | PIT |
| +042+ | 3.66 | Rube Marquard | 255.7 | CIN |
| +045+ | 3.5 | Bullet Joe Bush | 244.3 | BOS |
| +046+ | 3.28 | Walter Johnson | 247 | MIN |
| +047+ | 3.26 | Joe Oeschger | 299 | ATL |
| +049+ | 3.19 | Jesse Haines | 235.3 | SLN |
| +051+ | 2.99 | Dana Fillingim | 239.7 | ATL |
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