| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 4.5 | 193809090_ATL_PHI |
| Bill Lee | CHN | 4.43 | 193809110_CIN_CHN |
| Paul Derringer | CIN | 3.81 | 193809110_CIN_CHN |
| Russ Bauers | PIT | 2.59 | 193809100_PIT_SLN |
| Freddie Fitzsimmons | LAN | 2.42 | 193809090_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lynn Nelson | OAK | -2.83 | 193809100_OAK_BOS |
| Bobo Newsom | BAL | -2.67 | 193809100_BAL_CLE |
| Hugh Mulcahy | PHI | -0.92 | 193809111_ATL_PHI |
| Slick Coffman | DET | -0.91 | 193809112_CHA_DET |
| Bucky Walters | CIN | -0.36 | 193809100_CIN_CHN |
Based on accumulated WAA for this season up to 1938-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 8.01 | Bill Lee | 254.7 | CHN |
| +008+ | 7.22 | Paul Derringer | 273 | CIN |
| +009+ | 7.12 | Lou Fette | 226 | ATL |
| +020+ | 6.04 | Freddie Fitzsimmons | 176.7 | LAN |
| +021+ | 5.68 | Johnny Vander Meer | 189.3 | CIN |
| +024+ | 5.61 | Clay Bryant | 228.3 | CHN |
| +025+ | 5.6 | Danny MacFayden | 185.3 | ATL |
| +027+ | 5.08 | Red Ruffing | 218.3 | NYA |
| +028+ | 5.05 | Carl Hubbell | 179 | SFN |
| +030+ | 5 | Thornton Lee | 209.3 | CHA |
| +031+ | 4.87 | Bill McGee | 197 | SLN |
| +032+ | 4.86 | Russ Bauers | 208.7 | PIT |
| +033+ | 4.74 | Dutch Leonard | 204.3 | MIN |
| +036+ | 4.6 | Charlie Root | 133.3 | CHN |
| +043+ | 4.12 | Bob Klinger | 136.7 | PIT |
| +045+ | 3.75 | Ira Hutchinson | 128.7 | ATL |
| +048+ | 3.41 | Lefty Gomez | 210 | NYA |
| +049+ | 3.29 | Jim Tobin | 203.3 | PIT |
| +053+ | 3.11 | Lon Warneke | 187.7 | SLN |
| +054+ | 3.1 | Bob Weiland | 215.3 | SLN |
| +057+ | 2.93 | Jim Turner | 230.3 | ATL |
| +058+ | 2.92 | Bill Swift | 128.7 | PIT |
| +059+ | 2.91 | Bump Hadley | 139.3 | NYA |
| +060+ | 2.78 | Ted Lyons | 168.7 | CHA |
| +061+ | 2.77 | Bill Lohrman | 126.7 | SFN |
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