| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago Cubs | CHN | 6.96 | 193809270_PIT_CHN |
| St. Louis Cardinals | SLN | 2.07 | 193809260_SLN_CHN |
| Boston Bees | ATL | 1.55 | 193809251_SFN_ATL |
| Boston Red Sox | BOS | 0.68 | 193809251_BOS_NYA |
| New York Giants | SFN | 0.53 | 193809271_SFN_LAN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Washington Senators | MIN | -4.45 | 193809251_MIN_OAK |
| Detroit Tigers | DET | -1.91 | 193809250_CLE_DET |
| Philadelphia Athletics | OAK | -1.24 | 193809270_BOS_OAK |
| St. Louis Browns | BAL | -0.56 | 193809251_CHA_BAL |
| Chicago White Sox | CHA | -0.48 | 193809270_CHA_CLE |
Based on accumulated WAA for this season up to 1938-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.66 | Bill Lee | 282 | CHN |
| +030+ | 5.1 | Jumbo Brown | 90 | SFN |
| +032+ | 5.03 | Bill McGee | 209.3 | SLN |
| +036+ | 4.68 | Lefty Grove | 163.7 | BOS |
| +037+ | 4.62 | Charlie Root | 150.7 | CHN |
| +054+ | 3.52 | Dick Errickson | 122.3 | ATL |
| +058+ | 2.91 | Bill Swift | 144 | PIT |
| +060+ | 2.82 | Luke Hamlin | 229.7 | LAN |
| +061+ | 2.78 | Tot Pressnell | 189 | LAN |
| +062+ | 2.75 | Jim Weaver | 127 | TOT |
| +067+ | 2.52 | Lon Warneke | 194.3 | SLN |
| +077+ | 2.26 | Johnny Rigney | 153 | CHA |
| +079+ | 2.13 | Larry French | 194 | CHN |
| +086+ | 1.89 | Dick Coffman | 110.7 | SFN |
| +087+ | 1.78 | Jack Russell | 100 | CHN |
| XXXXX | 1.06 | Harry Eisenstat | 116.3 | DET |
| XXXXX | 0.94 | Mace Brown | 125.7 | PIT |
| XXXXX | 0.63 | Max Macon | 127.3 | SLN |
| XXXXX | 0.47 | Fred Frankhouse | 93.7 | LAN |
| XXXXX | 0.34 | Roy Henshaw | 128.7 | SLN |
| XXXXX | 0.29 | Joe Rogalski | 7 | DET |
| XXXXX | 0.26 | Clyde Shoun | 110.7 | SLN |
| XXXXX | 0.21 | Max Lanier | 41 | SLN |
| XXXXX | 0.09 | Bob Harris | 3 | DET |
| XXXXX | 0.08 | Art Doll | 3 | ATL |
_