| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Mays | NYA | 3.59 | 192104170_BOS_NYA |
| Leon Cadore | LAN | 1.44 | 192104160_LAN_ATL |
| Urban Shocker | BAL | 1.33 | 192104180_CHA_BAL |
| Lee Meadows | PHI | 0.97 | 192104160_SFN_PHI |
| Dolf Luque | CIN | 0.91 | 192104180_SLN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sad Sam Jones | BOS | -3.07 | 192104170_BOS_NYA |
| Mule Watson | ATL | -1.46 | 192104160_LAN_ATL |
| George Uhle | CLE | -1.05 | 192104160_CLE_BAL |
| Slim Harriss | OAK | -0.99 | 192104160_OAK_NYA |
| Jimmy Zinn | PIT | -0.72 | 192104180_PIT_CHN |
Based on accumulated WAA for this season up to 1921-04-18.
| Rank | WAA | Name | IP | Tm |
|---|
_