| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Chase | MIN | -2.3 | 193809131_MIN_CHA |
| Bobo Newsom | BAL | -2.16 | 193809140_OAK_BAL |
| Vern Kennedy | DET | -1.01 | 193809130_BOS_DET |
| Bud Thomas | OAK | -0.86 | 193809140_OAK_BAL |
| Al Hollingsworth | PHI | -0.2 | 193809142_SLN_PHI |
Based on accumulated WAA for this season up to 1938-09-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 8 | Bill Lee | 254.7 | CHN |
| +008+ | 7.22 | Paul Derringer | 273 | CIN |
| +016+ | 6.55 | Lou Fette | 229 | ATL |
| +018+ | 6.5 | Freddie Fitzsimmons | 185.7 | LAN |
| +022+ | 5.73 | Red Ruffing | 227.3 | NYA |
| +024+ | 5.64 | Johnny Vander Meer | 195.3 | CIN |
| +025+ | 5.58 | Danny MacFayden | 185.3 | ATL |
| +026+ | 5.48 | Thornton Lee | 218.3 | CHA |
| +027+ | 5.35 | Clay Bryant | 236.3 | CHN |
| +029+ | 5.03 | Carl Hubbell | 179 | SFN |
| +030+ | 4.88 | Russ Bauers | 208.7 | PIT |
| +031+ | 4.86 | Charlie Root | 142.3 | CHN |
| +032+ | 4.85 | Bill McGee | 197 | SLN |
| +034+ | 4.73 | Dutch Leonard | 204.3 | MIN |
| +044+ | 4.13 | Bob Klinger | 136.7 | PIT |
| +043+ | 4.13 | Ira Hutchinson | 132.7 | ATL |
| +048+ | 3.59 | Jim Turner | 239.3 | ATL |
| +049+ | 3.39 | Lefty Gomez | 210 | NYA |
| +051+ | 3.3 | Jim Tobin | 203.3 | PIT |
| +053+ | 3.1 | Lon Warneke | 187.7 | SLN |
| +055+ | 3.08 | Bob Weiland | 215.3 | SLN |
| +058+ | 2.93 | Al Benton | 76 | DET |
| +059+ | 2.89 | Bump Hadley | 139.3 | NYA |
| +060+ | 2.78 | Cy Blanton | 163.7 | PIT |
| +062+ | 2.77 | Ted Lyons | 168.7 | CHA |
_