| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Athletics | OAK | 3.42 | 193108310_BOS_OAK |
| Boston Braves | ATL | 2.89 | 193108301_ATL_LAN |
| Washington Senators | MIN | 2.21 | 193108310_MIN_NYA |
| St. Louis Cardinals | SLN | 1.98 | 193108290_PIT_SLN |
| Brooklyn Robins | LAN | 0.58 | 193108301_ATL_LAN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Browns | BAL | -5.4 | 193108290_BAL_CLE |
| Detroit Tigers | DET | -1.34 | 193108310_DET_BAL |
| Cincinnati Reds | CIN | -1.19 | 193108300_CIN_CHN |
| Pittsburgh Pirates | PIT | -0.97 | 193108301_PIT_SLN |
| Philadelphia Phillies | PHI | -0.75 | 193108301_PHI_SFN |
Based on accumulated WAA for this season up to 1931-08-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +023+ | 4.85 | Tom Zachary | 186.3 | ATL |
| +034+ | 3.85 | Bob Smith | 203 | CHN |
| +041+ | 3.57 | George Earnshaw | 239 | OAK |
| +042+ | 3.53 | Firpo Marberry | 178.7 | MIN |
| +059+ | 2.46 | Rube Walberg | 247 | OAK |
| +063+ | 2.32 | Jack Quinn | 58.7 | LAN |
| +075+ | 1.98 | Bump Hadley | 140.7 | MIN |
| +076+ | 1.96 | Jakie May | 79 | CHN |
| +080+ | 1.83 | Jack Ogden | 75 | CIN |
| +090+ | 1.57 | Red Faber | 158.7 | CHA |
| +097+ | 1.32 | Jim Lindsey | 59.3 | SLN |
| +096+ | 1.32 | Lon Warneke | 50.7 | CHN |
| XXXXX | 1.01 | Ben Cantwell | 104.7 | ATL |
| XXXXX | 0.86 | Jumbo Elliott | 210.7 | PHI |
| XXXXX | 0.7 | Ed Baecht | 66 | CHN |
| 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 | -0.05 | 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 |
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