| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Giants | SFN | 10.54 | 192105190_CHN_SFN |
| Chicago Cubs | CHN | 3.35 | 192105200_CHN_SFN |
| Brooklyn Robins | LAN | 1.48 | 192105180_PIT_LAN |
| Philadelphia Phillies | PHI | 0.37 | 192105190_SLN_PHI |
| Cincinnati Reds | CIN | 0.16 | 192105180_CIN_ATL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Browns | BAL | -3.79 | 192105190_MIN_BAL |
| Washington Senators | MIN | -2.75 | 192105180_MIN_BAL |
| Philadelphia Athletics | OAK | -0.92 | 192105180_OAK_CLE |
| Detroit Tigers | DET | -0.83 | 192105180_BOS_DET |
| Chicago White Sox | CHA | -0.36 | 192105200_NYA_CHA |
Based on accumulated WAA for this season up to 1921-05-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 1.61 | Clarence Mitchell | 40.7 | LAN |
| XXXXX | 1.18 | Rosy Ryan | 31.3 | SFN |
| XXXXX | 1.17 | Phil Douglas | 24.3 | SFN |
| XXXXX | 0.99 | Red Oldham | 41.3 | DET |
| XXXXX | 0.78 | Lefty York | 33.3 | CHN |
| XXXXX | 0.77 | Jimmie Keenan | 11 | PHI |
| XXXXX | 0.75 | Clint Rogge | 14.7 | CIN |
| XXXXX | 0.71 | Lefty Weinert | 10.3 | PHI |
| XXXXX | 0.69 | Dave Keefe | 31.3 | OAK |
| XXXXX | 0.68 | Ted Odenwald | 10 | CLE |
| XXXXX | 0.51 | Marv Goodwin | 7.7 | SLN |
| XXXXX | 0.32 | Jimmy Zinn | 17.7 | PIT |
| XXXXX | 0.3 | Jim Middleton | 36 | DET |
| XXXXX | 0.3 | Pol Perritt | 3.3 | SFN |
| XXXXX | 0.24 | Slim Sallee | 18.7 | SFN |
| XXXXX | 0.06 | George Mohart | 3 | LAN |
| XXXXX | 0.06 | Elam Vangilder | 0.7 | BAL |
| XXXXX | 0.03 | Bill Burwell | 21.3 | BAL |
| XXXXX | -0.02 | Tink Riviere | 22 | SLN |
| XXXXX | -0.18 | Speed Martin | 57 | CHN |
| XXXXX | -0.2 | Bullet Joe Bush | 27 | BOS |
| XXXXX | -0.2 | Harry Courtney | 21.3 | MIN |
| XXXXX | -0.21 | Lynn Brenton | 22.3 | CIN |
| XXXXX | -0.26 | Jose Acosta | 30 | MIN |
| XXXXX | -0.35 | Lou North | 9.7 | SLN |
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