| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 4.94 | 193808120_CHN_PIT |
| Lefty Grove | BOS | 4.45 | 193808110_BOS_OAK |
| Red Ruffing | NYA | 3.36 | 193808121_OAK_NYA |
| Johnny Allen | CLE | 3.2 | 193808100_CLE_BAL |
| Johnny Vander Meer | CIN | 2.6 | 193808100_CHN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -5.62 | 193808111_CLE_BAL |
| Chief Hogsett | MIN | -2.19 | 193808100_MIN_NYA |
| Bud Thomas | OAK | -1.03 | 193808100_BOS_OAK |
| Elden Auker | DET | -0.96 | 193808100_DET_CHA |
| Bucky Walters | CIN | -0.73 | 193808120_SLN_CIN |
Based on accumulated WAA for this season up to 1938-08-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 6.48 | Bill Lee | 199.7 | CHN |
| +005+ | 6.26 | Paul Derringer | 207 | CIN |
| +012+ | 5.47 | Johnny Vander Meer | 180 | CIN |
| +015+ | 5.28 | Danny MacFayden | 137 | ATL |
| +016+ | 5.13 | Lou Fette | 165 | ATL |
| +017+ | 4.97 | Bill McGee | 148 | SLN |
| +018+ | 4.86 | Carl Hubbell | 165 | SFN |
| +020+ | 4.48 | Lefty Grove | 157.7 | BOS |
| +025+ | 4.24 | Red Ruffing | 170 | NYA |
| +026+ | 4.16 | Clay Bryant | 174.3 | CHN |
| +029+ | 4.01 | Larry French | 177 | CHN |
| +032+ | 3.8 | Dutch Leonard | 160 | MIN |
| +035+ | 3.59 | Russ Bauers | 165.3 | PIT |
| +036+ | 3.55 | Lon Warneke | 140 | SLN |
| +038+ | 3.39 | Jim Tobin | 163.3 | PIT |
| +039+ | 3.33 | Bob Weiland | 163.3 | SLN |
| +041+ | 3.15 | Peaches Davis | 139.7 | CIN |
| +043+ | 3.08 | Dizzy Dean | 47.7 | CHN |
| +044+ | 3.05 | Charlie Root | 85.3 | CHN |
| +046+ | 2.97 | Freddie Fitzsimmons | 136.7 | LAN |
| +048+ | 2.95 | Tot Pressnell | 155.3 | LAN |
| +050+ | 2.87 | Bill Lohrman | 88 | SFN |
| +052+ | 2.73 | Bob Klinger | 118 | PIT |
| +054+ | 2.54 | Monty Stratton | 127.7 | CHA |
| +055+ | 2.51 | Ted Lyons | 135.7 | CHA |
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