| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Mays | NYA | 8.5 | 192106292_BOS_NYA |
| Red Faber | CHA | 4.75 | 192106290_CHA_BAL |
| Wilbur Cooper | PIT | 3.89 | 192106290_PIT_CHN |
| Fred Toney | SFN | 3.76 | 192106290_SFN_ATL |
| Stan Coveleski | CLE | 3.62 | 192106280_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -2.1 | 192106302_CHA_BAL |
| Dutch Leonard | DET | -1.18 | 192106290_DET_CLE |
| Speed Martin | CHN | -1.18 | 192106281_PIT_CHN |
| Dixie Davis | BAL | -0.76 | 192106290_CHA_BAL |
| Elmer Myers | BOS | -0.48 | 192106280_OAK_BOS |
Based on accumulated WAA for this season up to 1921-06-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 6.27 | Carl Mays | 153.7 | NYA |
| +006+ | 5.45 | Red Faber | 163.7 | CHA |
| +007+ | 5.31 | Eppa Rixey | 129.3 | CIN |
| +009+ | 4.32 | Burleigh Grimes | 106 | LAN |
| +011+ | 4.14 | George Mogridge | 120 | MIN |
| +012+ | 3.84 | Wilbur Cooper | 142 | PIT |
| +020+ | 3.16 | Whitey Glazner | 110 | PIT |
| +022+ | 3.01 | Earl Hamilton | 119.7 | PIT |
| +023+ | 2.99 | Stan Coveleski | 153.3 | CLE |
| +024+ | 2.88 | Dana Fillingim | 98.3 | ATL |
| +025+ | 2.77 | Bill Piercy | 63.3 | NYA |
| +026+ | 2.64 | Fred Toney | 115.7 | SFN |
| +029+ | 2.39 | Dolf Luque | 140.3 | CIN |
| +035+ | 2.2 | Herb Pennock | 104.7 | BOS |
| +041+ | 1.96 | Rube Benton | 63.3 | SFN |
| +040+ | 1.96 | Elam Vangilder | 54.3 | BAL |
| +042+ | 1.94 | Rube Marquard | 120.7 | CIN |
| +044+ | 1.92 | Bill Doak | 78.3 | SLN |
| +052+ | 1.6 | Allen Russell | 81.7 | BOS |
| +061+ | 1.46 | Bob Shawkey | 86.7 | NYA |
| +063+ | 1.39 | Dave Keefe | 94.7 | OAK |
| +065+ | 1.37 | Joe Oeschger | 124.3 | ATL |
| +068+ | 1.36 | Hugh McQuillan | 122 | ATL |
| +070+ | 1.31 | Bullet Joe Bush | 83 | BOS |
| +071+ | 1.3 | Johnny Miljus | 39.7 | LAN |
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