| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 11.04 | 192109300_CLE_CHA |
| Bill Doak | SLN | 3.35 | 192109291_PIT_SLN |
| George Mogridge | MIN | 3.14 | 192109300_MIN_BOS |
| Sad Sam Jones | BOS | 1.8 | 192109290_MIN_BOS |
| Wilbur Cooper | PIT | 1.54 | 192109291_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dickey Kerr | CHA | -4.45 | 192109290_CLE_CHA |
| Rollie Naylor | OAK | -2.08 | 192109280_BOS_OAK |
| Speed Martin | CHN | -0.69 | 192109280_CIN_CHN |
| Bob Shawkey | NYA | -0.54 | 192109290_NYA_OAK |
| Ray Gordinier | LAN | -0.21 | 192109280_LAN_ATL |
Based on accumulated WAA for this season up to 1921-09-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 12.35 | Red Faber | 330.7 | CHA |
| +009+ | 8.5 | Eppa Rixey | 293.7 | CIN |
| +011+ | 8.03 | Burleigh Grimes | 293.3 | LAN |
| +012+ | 7.67 | Carl Mays | 327 | NYA |
| +013+ | 7.17 | Bill Doak | 208.7 | SLN |
| +017+ | 6.74 | George Mogridge | 288.7 | MIN |
| +018+ | 6.16 | Whitey Glazner | 232 | PIT |
| +019+ | 6.03 | Waite Hoyt | 278.7 | NYA |
| +020+ | 5.9 | Sad Sam Jones | 298.7 | BOS |
| +022+ | 5.6 | Jesse Barnes | 258.7 | SFN |
| +024+ | 5.02 | Wilbur Cooper | 318 | PIT |
| +025+ | 4.87 | Stan Coveleski | 315.3 | CLE |
| +026+ | 4.86 | Dolf Luque | 304 | CIN |
| +027+ | 4.83 | Clarence Mitchell | 181 | LAN |
| +028+ | 4.81 | Babe Adams | 160 | PIT |
| +036+ | 3.98 | Bill Pertica | 206 | SLN |
| +037+ | 3.96 | Pete Alexander | 246.3 | CHN |
| +040+ | 3.72 | Urban Shocker | 326.7 | BAL |
| +041+ | 3.64 | Rube Marquard | 255.7 | CIN |
| +042+ | 3.55 | Johnny Morrison | 144 | PIT |
| +045+ | 3.24 | Joe Oeschger | 299 | ATL |
| +046+ | 3.2 | Jesse Haines | 244.3 | SLN |
| +048+ | 3.18 | Walter Johnson | 255 | MIN |
| +049+ | 3.07 | Bullet Joe Bush | 253.3 | BOS |
| +051+ | 2.97 | Dana Fillingim | 239.7 | ATL |
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