| Team | Tm | Tier | Game |
|---|---|---|---|
| Washington Senators | MIN | 2.55 | 193109130_CLE_MIN |
| Brooklyn Robins | LAN | 0.86 | 193109130_PIT_LAN |
| Philadelphia Athletics | OAK | 0.83 | 193109121_BAL_OAK |
| Pittsburgh Pirates | PIT | 0.77 | 193109130_PIT_LAN |
| St. Louis Cardinals | SLN | 0.75 | 193109131_PHI_SLN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -7.21 | 193109121_CHA_NYA |
| St. Louis Browns | BAL | -4.02 | 193109121_BAL_OAK |
| Boston Red Sox | BOS | -1.32 | 193109110_DET_BOS |
| Cincinnati Reds | CIN | -1.12 | 193109110_LAN_CIN |
| Detroit Tigers | DET | -0.37 | 193109131_DET_NYA |
Based on accumulated WAA for this season up to 1931-09-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +044+ | 3.56 | Firpo Marberry | 194.3 | MIN |
| +048+ | 3.3 | Glenn Spencer | 169 | PIT |
| +055+ | 2.99 | Bump Hadley | 159.7 | MIN |
| +071+ | 2.29 | Jack Ogden | 85 | CIN |
| +087+ | 1.91 | Jack Quinn | 61.3 | LAN |
| +088+ | 1.87 | Wilcy Moore | 167 | BOS |
| +091+ | 1.79 | Red Faber | 178 | CHA |
| +103+ | 1.45 | Jim Lindsey | 65.7 | SLN |
| +105+ | 1.38 | Eddie Rommel | 98 | OAK |
| XXXXX | 1.19 | Cy Moore | 51.7 | LAN |
| XXXXX | 0.63 | Hank McDonald | 70.3 | OAK |
| XXXXX | 0.52 | Sloppy Thurston | 134.3 | LAN |
| XXXXX | 0.41 | Jack Berly | 103 | SFN |
| XXXXX | 0.13 | Bob Cooney | 14.3 | BAL |
| XXXXX | 0.07 | Bobby Reeves | 7.3 | BOS |
| XXXXX | -0.12 | Gordon Rhodes | 62 | NYA |
| XXXXX | -0.21 | Oral Hildebrand | 4.3 | CLE |
| XXXXX | -0.32 | Roy Mahaffey | 159.3 | OAK |
| XXXXX | -0.42 | Jumbo Elliott | 224.7 | PHI |
| XXXXX | -0.46 | Jim Peterson | 4 | OAK |
| XXXXX | -0.48 | Bill Sherdel | 129.3 | ATL |
| XXXXX | -0.65 | Hal Haid | 52.7 | ATL |
| XXXXX | -0.75 | Grant Bowler | 23.3 | CHA |
| XXXXX | -0.78 | Joe Heving | 42.3 | SFN |
| XXXXX | -0.92 | Ed Wells | 116.7 | NYA |
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