| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 4.63 | 193808310_ATL_CHN |
| Bill Lee | CHN | 4.54 | 193808310_ATL_CHN |
| Paul Derringer | CIN | 3.69 | 193808301_LAN_CIN |
| Bill McGee | SLN | 3.09 | 193808312_PHI_SLN |
| Thornton Lee | CHA | 2.77 | 193809010_CHA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nels Potter | OAK | -2.08 | 193808300_CLE_OAK |
| Bobo Newsom | BAL | -1.75 | 193809010_BAL_BOS |
| Slick Coffman | DET | -1.38 | 193809010_DET_NYA |
| Tex Carleton | CHN | -0.88 | 193808300_ATL_CHN |
| Harry Kelley | MIN | -0.83 | 193809010_CHA_MIN |
Based on accumulated WAA for this season up to 1938-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 6.81 | Lou Fette | 209 | ATL |
| +009+ | 6.76 | Paul Derringer | 251 | CIN |
| +010+ | 6.68 | Red Ruffing | 206 | NYA |
| +017+ | 6.33 | Bill Lee | 235.3 | CHN |
| +019+ | 5.97 | Bill McGee | 181.3 | SLN |
| +020+ | 5.76 | Danny MacFayden | 167 | ATL |
| +024+ | 5.19 | Carl Hubbell | 179 | SFN |
| +026+ | 5.01 | Thornton Lee | 203.3 | CHA |
| +028+ | 4.76 | Freddie Fitzsimmons | 158.7 | LAN |
| +030+ | 4.66 | Russ Bauers | 194.7 | PIT |
| +033+ | 4.47 | Jim Tobin | 197 | PIT |
| +036+ | 4.35 | Dutch Leonard | 188.3 | MIN |
| +038+ | 4.24 | Clay Bryant | 210.3 | CHN |
| +044+ | 3.8 | Bob Weiland | 197.7 | SLN |
| +045+ | 3.79 | Lefty Gomez | 196 | NYA |
| +047+ | 3.69 | Ted Lyons | 161.7 | CHA |
| +048+ | 3.55 | Charlie Root | 117.3 | CHN |
| +051+ | 3.32 | Bob Klinger | 127.7 | PIT |
| +052+ | 3.31 | Cy Blanton | 144.7 | PIT |
| +054+ | 3.14 | Jim Turner | 214.3 | ATL |
| +055+ | 3.13 | Dizzy Dean | 60.7 | CHN |
| +057+ | 2.94 | Bill Swift | 121.7 | PIT |
| +058+ | 2.93 | Larry French | 186.7 | CHN |
| +059+ | 2.8 | Bill Lohrman | 117.7 | SFN |
| +060+ | 2.78 | Ira Hutchinson | 114 | ATL |
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