| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago Cubs | CHN | 3.52 | 193809240_SLN_CHN |
| St. Louis Cardinals | SLN | 2.07 | 193809260_SLN_CHN |
| Boston Bees | ATL | 1.81 | 193809241_SFN_ATL |
| New York Giants | SFN | 1.15 | 193809241_SFN_ATL |
| Boston Red Sox | BOS | 0.68 | 193809251_BOS_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Washington Senators | MIN | -4.57 | 193809240_MIN_OAK |
| Detroit Tigers | DET | -1.99 | 193809240_CLE_DET |
| St. Louis Browns | BAL | -0.89 | 193809241_CHA_BAL |
| Philadelphia Athletics | OAK | -0.83 | 193809251_MIN_OAK |
| Brooklyn Dodgers | LAN | -0.58 | 193809240_PHI_LAN |
Based on accumulated WAA for this season up to 1938-09-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +030+ | 5.09 | Bill McGee | 209.3 | SLN |
| +033+ | 4.97 | Jumbo Brown | 88.7 | SFN |
| +036+ | 4.71 | Lefty Grove | 163.7 | BOS |
| +037+ | 4.66 | Charlie Root | 150.7 | CHN |
| +041+ | 4.41 | Ira Hutchinson | 141.7 | ATL |
| +052+ | 3.57 | Dick Errickson | 122.3 | ATL |
| +059+ | 2.83 | Bill Swift | 143 | PIT |
| +060+ | 2.79 | Tot Pressnell | 189 | LAN |
| +062+ | 2.78 | Jim Weaver | 127 | TOT |
| +068+ | 2.57 | Lon Warneke | 194.3 | SLN |
| +075+ | 2.29 | Johnny Rigney | 153 | CHA |
| +079+ | 2.18 | Larry French | 194 | CHN |
| +085+ | 1.8 | Jack Russell | 100 | CHN |
| +094+ | 1.46 | Dick Coffman | 106.3 | SFN |
| XXXXX | 1.07 | Harry Eisenstat | 116.3 | DET |
| XXXXX | 0.96 | Mace Brown | 125.7 | PIT |
| XXXXX | 0.88 | Ivy Andrews | 39 | NYA |
| XXXXX | 0.47 | Fred Frankhouse | 93.7 | LAN |
| XXXXX | 0.46 | Max Macon | 125.3 | SLN |
| XXXXX | 0.37 | Roy Henshaw | 128.7 | SLN |
| XXXXX | 0.29 | Joe Rogalski | 7 | DET |
| XXXXX | 0.29 | Clyde Shoun | 110.7 | SLN |
| XXXXX | 0.09 | Bob Harris | 3 | DET |
| XXXXX | 0.08 | Art Doll | 3 | ATL |
| XXXXX | 0.06 | Jack Wilson | 194.7 | BOS |
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