| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Athletics | OAK | 5.4 | 193009180_OAK_CHA |
| Brooklyn Robins | LAN | 3.26 | 193009180_SLN_LAN |
| Washington Senators | MIN | 2.84 | 193009180_MIN_CLE |
| St. Louis Cardinals | SLN | 0.27 | 193009201_SLN_PHI |
| Chicago White Sox | CHA | 0.26 | 193009180_OAK_CHA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Phillies | PHI | -12.15 | 193009190_SLN_PHI |
| St. Louis Browns | BAL | -2.29 | 193009180_NYA_BAL |
| Boston Red Sox | BOS | -0.81 | 193009180_BOS_DET |
| Cleveland Indians | CLE | -0.76 | 193009190_BOS_CLE |
| Cincinnati Reds | CIN | -0.65 | 193009190_CIN_SFN |
Based on accumulated WAA for this season up to 1930-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 14.93 | Lefty Grove | 288.7 | OAK |
| +020+ | 6.44 | George Uhle | 237.7 | DET |
| +039+ | 4.6 | Ad Liska | 141.7 | MIN |
| +046+ | 4.21 | Pat Caraway | 184.3 | CHA |
| +051+ | 3.82 | Watty Clark | 195.7 | LAN |
| +064+ | 2.87 | Firpo Marberry | 184.7 | MIN |
| +065+ | 2.75 | Sloppy Thurston | 95 | LAN |
| +066+ | 2.74 | Pete Appleton | 112.7 | CLE |
| +083+ | 2.15 | Freddie Fitzsimmons | 215 | SFN |
| +087+ | 2.05 | Jim Moore | 39 | CHA |
| +091+ | 1.96 | Herb Pennock | 155.7 | NYA |
| +097+ | 1.84 | Bobby Burke | 73.3 | MIN |
| XXXXX | 1.14 | Jim Lindsey | 103.7 | SLN |
| XXXXX | 1.12 | Hank Johnson | 172.7 | NYA |
| XXXXX | 0.7 | Ed Durham | 132 | BOS |
| XXXXX | 0.67 | Bill Morrell | 6 | SFN |
| XXXXX | 0.55 | Ken Ash | 29 | CIN |
| XXXXX | 0.54 | Si Johnson | 66 | CIN |
| XXXXX | 0.48 | John Milligan | 17.7 | PHI |
| XXXXX | 0.41 | Bill Sherdel | 181.3 | TOT |
| XXXXX | 0.37 | George Blaeholder | 181.7 | BAL |
| XXXXX | 0.32 | Ed Brandt | 144 | ATL |
| XXXXX | 0.23 | Mark Koenig | 2 | TOT |
| XXXXX | 0.16 | Tony Kaufmann | 3.3 | SLN |
| XXXXX | 0.11 | Bob Kline | 1 | BOS |
_