| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago Cubs | CHN | 3.92 | 193809231_CHN_PHI |
| St. Louis Cardinals | SLN | 2 | 193809221_SLN_ATL |
| New York Giants | SFN | 1.82 | 193809221_CIN_SFN |
| Boston Bees | ATL | 1.81 | 193809241_SFN_ATL |
| Pittsburgh Pirates | PIT | 0.73 | 193809221_PIT_LAN |
| 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 | -0.74 | 193809240_MIN_OAK |
| Brooklyn Dodgers | LAN | -0.58 | 193809240_PHI_LAN |
Based on accumulated WAA for this season up to 1938-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +028+ | 5.31 | Bill McGee | 207 | SLN |
| +031+ | 5 | Jumbo Brown | 88.7 | SFN |
| +036+ | 4.7 | Charlie Root | 150.7 | CHN |
| +038+ | 4.64 | Lefty Grove | 161.7 | BOS |
| +041+ | 4.47 | Ira Hutchinson | 141.7 | ATL |
| +051+ | 3.62 | Dick Errickson | 122.3 | ATL |
| +052+ | 3.54 | Dizzy Dean | 66 | CHN |
| +058+ | 2.81 | Jim Weaver | 127 | TOT |
| +059+ | 2.78 | Bill Swift | 142 | PIT |
| +073+ | 2.23 | Larry French | 194 | CHN |
| +085+ | 1.85 | Curt Davis | 163 | SLN |
| +086+ | 1.83 | Jack Russell | 100 | CHN |
| +092+ | 1.5 | Dick Coffman | 106.3 | SFN |
| XXXXX | 1.11 | Harry Eisenstat | 116.3 | DET |
| XXXXX | 0.99 | Mace Brown | 125.7 | PIT |
| XXXXX | 0.92 | Ivy Andrews | 39 | NYA |
| XXXXX | 0.49 | Fred Frankhouse | 93.7 | LAN |
| XXXXX | 0.39 | Roy Henshaw | 128.7 | SLN |
| XXXXX | 0.29 | Joe Rogalski | 7 | DET |
| XXXXX | 0.15 | Jim Bagby | 183.7 | BOS |
| XXXXX | 0.09 | Bob Harris | 3 | DET |
| XXXXX | 0.08 | Art Doll | 3 | ATL |
| XXXXX | 0.03 | Max Lanier | 39 | SLN |
| XXXXX | -0.09 | Ralph Buxton | 9.3 | OAK |
| XXXXX | -0.23 | Tom Baker | 4 | SFN |
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