| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Athletics | OAK | 5.62 | 193105090_OAK_BAL |
| Cleveland Indians | CLE | 2.48 | 193105070_CLE_BAL |
| Washington Senators | MIN | 2.31 | 193105080_MIN_DET |
| Detroit Tigers | DET | 1.11 | 193105070_CHA_DET |
| Brooklyn Robins | LAN | 0.43 | 193105080_LAN_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Browns | BAL | -6.13 | 193105090_OAK_BAL |
| Pittsburgh Pirates | PIT | -5.39 | 193105090_SLN_PIT |
| Cleveland Indians | CLE | -0.16 | 193105090_BOS_CLE |
| Chicago Cubs | CHN | -0.11 | 193105090_CHN_SFN |
| New York Yankees | NYA | -0.11 | 193105090_NYA_CHA |
Based on accumulated WAA for this season up to 1931-05-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| XXXXX | 1.13 | Jakie May | 12 | CHN |
| XXXXX | 1.12 | Wilcy Moore | 32 | BOS |
| XXXXX | 0.75 | Lefty Grove | 23 | OAK |
| XXXXX | 0.7 | Jim Lindsey | 10 | SLN |
| XXXXX | 0.63 | Jack Berly | 14 | SFN |
| XXXXX | 0.54 | Dutch Schesler | 10.7 | PHI |
| XXXXX | 0.43 | Paul Derringer | 9.3 | SLN |
| XXXXX | 0.42 | Joe Heving | 7 | SFN |
| XXXXX | 0.4 | Art Herring | 6.3 | DET |
| XXXXX | 0.24 | Howard Craghead | 4.7 | CLE |
| XXXXX | 0.19 | Lefty Weinert | 9.7 | NYA |
| XXXXX | 0.16 | Red Ruffing | 34 | NYA |
| XXXXX | 0.16 | Fred Stiely | 1.7 | BAL |
| XXXXX | 0.09 | Glenn Spencer | 12 | PIT |
| XXXXX | 0.09 | Lil Stoner | 1 | PHI |
| XXXXX | 0.08 | Bill McAfee | 3 | ATL |
| XXXXX | 0.06 | Fred Heimach | 7 | LAN |
| XXXXX | 0.06 | Frank Watt | 17 | PHI |
| XXXXX | 0.05 | Jack Quinn | 13.3 | LAN |
| XXXXX | 0.03 | Al Eckert | 4.7 | CIN |
| XXXXX | 0.01 | Fay Thomas | 11 | CLE |
| XXXXX | -0.04 | Lou McEvoy | 2 | NYA |
| XXXXX | -0.04 | Red Faber | 12.7 | CHA |
| XXXXX | -0.05 | George Grant | 8.3 | PIT |
| XXXXX | -0.09 | Bob Kline | 8 | BOS |
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