| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Athletics | OAK | 7.21 | 193106210_OAK_CHA |
| Washington Senators | MIN | 4.34 | 193106190_MIN_CLE |
| Brooklyn Robins | LAN | 1.59 | 193106210_CHN_LAN |
| Chicago Cubs | CHN | 1.24 | 193106190_CHN_LAN |
| Chicago White Sox | CHA | 0.87 | 193106210_OAK_CHA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Browns | BAL | -4.5 | 193106200_NYA_BAL |
| Cincinnati Reds | CIN | -4.11 | 193106210_PHI_CIN |
| Philadelphia Phillies | PHI | -1.86 | 193106190_CIN_PHI |
| Boston Braves | ATL | -0.68 | 193106190_SLN_ATL |
| Chicago Cubs | CHN | -0.53 | 193106200_CHN_LAN |
Based on accumulated WAA for this season up to 1931-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.14 | Lefty Grove | 118 | OAK |
| +028+ | 2.58 | Ed Brandt | 102 | ATL |
| +048+ | 1.54 | Larry French | 119.3 | PIT |
| XXXXX | 1.22 | Dazzy Vance | 82 | LAN |
| XXXXX | 1.21 | Wilcy Moore | 57.7 | BOS |
| XXXXX | 0.97 | Hal Haid | 14.3 | ATL |
| XXXXX | 0.95 | Pat Malone | 78 | CHN |
| XXXXX | 0.88 | Ed Wells | 31.3 | NYA |
| XXXXX | 0.88 | Ed Baecht | 41 | CHN |
| XXXXX | 0.83 | Allyn Stout | 26 | SLN |
| XXXXX | 0.83 | Jack Ogden | 23.3 | CIN |
| XXXXX | 0.78 | Jumbo Elliott | 99 | PHI |
| XXXXX | 0.73 | Bobby Burke | 59 | MIN |
| XXXXX | 0.5 | Eppa Rixey | 41.3 | CIN |
| XXXXX | 0.48 | Bump Hadley | 56.3 | MIN |
| XXXXX | 0.37 | Jim Weaver | 12.7 | NYA |
| XXXXX | 0.34 | Jack Quinn | 31.7 | LAN |
| XXXXX | 0.17 | Lefty Weinert | 21.7 | NYA |
| XXXXX | 0.1 | Bill Sherdel | 46.3 | ATL |
| XXXXX | 0.1 | Mel Harder | 60.7 | CLE |
| XXXXX | -0.12 | Sheriff Blake | 39.3 | CHN |
| XXXXX | -0.15 | Firpo Marberry | 49.7 | MIN |
| XXXXX | -0.16 | Fred Heimach | 28.7 | LAN |
| XXXXX | -0.26 | Jack Russell | 85.7 | BOS |
| XXXXX | -0.33 | Clint Brown | 94.7 | CLE |
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