| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Athletics | OAK | 3.42 | 193108310_BOS_OAK |
| Boston Braves | ATL | 2.89 | 193108301_ATL_LAN |
| Washington Senators | MIN | 2.28 | 193109010_MIN_OAK |
| Brooklyn Robins | LAN | 0.58 | 193108301_ATL_LAN |
| St. Louis Cardinals | SLN | 0.23 | 193108301_PIT_SLN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Browns | BAL | -4.26 | 193108301_BAL_CLE |
| Boston Red Sox | BOS | -1.63 | 193109011_BOS_NYA |
| Detroit Tigers | DET | -1.34 | 193108310_DET_BAL |
| Cincinnati Reds | CIN | -1.19 | 193108300_CIN_CHN |
| Pittsburgh Pirates | PIT | -0.97 | 193108301_PIT_SLN |
Based on accumulated WAA for this season up to 1931-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +023+ | 4.84 | Tom Zachary | 186.3 | ATL |
| +034+ | 3.84 | Bob Smith | 203 | CHN |
| +039+ | 3.66 | George Earnshaw | 240 | OAK |
| +042+ | 3.52 | Firpo Marberry | 178.7 | MIN |
| +076+ | 1.97 | Bump Hadley | 140.7 | MIN |
| +077+ | 1.96 | Jakie May | 79 | CHN |
| +080+ | 1.82 | Jack Ogden | 75 | CIN |
| +090+ | 1.56 | Red Faber | 158.7 | CHA |
| +097+ | 1.32 | Jim Lindsey | 59.3 | SLN |
| XXXXX | 0.85 | Jumbo Elliott | 210.7 | PHI |
| XXXXX | 0.41 | Gordon Rhodes | 46.3 | NYA |
| XXXXX | 0.4 | Cy Moore | 32.3 | LAN |
| XXXXX | 0.16 | Bob Weiland | 42.7 | CHA |
| XXXXX | 0.15 | Bruce Cunningham | 117.7 | ATL |
| XXXXX | 0.09 | Roy Parmelee | 18.3 | SFN |
| XXXXX | 0.05 | Ivy Andrews | 16 | NYA |
| XXXXX | -0.06 | Allyn Stout | 56 | SLN |
| XXXXX | -0.06 | John Milligan | 3.7 | PHI |
| XXXXX | -0.08 | Steve Swetonic | 25.3 | PIT |
| XXXXX | -0.34 | Ed Wells | 111.3 | NYA |
| XXXXX | -0.51 | Mel Harder | 161.3 | CLE |
| XXXXX | -0.76 | Johnny Welch | 3 | CHN |
| XXXXX | -0.89 | Frank Watt | 102.7 | PHI |
| XXXXX | -0.92 | Grant Bowler | 10 | CHA |
| XXXXX | -1.02 | Lou Garland | 4.7 | CHA |
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