| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 4.52 | 193809052_LAN_ATL |
| Paul Derringer | CIN | 4.15 | 193809031_CHN_CIN |
| Bill Lee | CHN | 3.68 | 193809051_CHN_PIT |
| Thornton Lee | CHA | 2.79 | 193809051_CLE_CHA |
| Bill McGee | SLN | 2.43 | 193809052_SLN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Van Atta | BAL | -2.67 | 193809042_CLE_BAL |
| Lynn Nelson | OAK | -2.13 | 193809041_BOS_OAK |
| Hugh Mulcahy | PHI | -1.33 | 193809041_PHI_ATL |
| Chief Hogsett | MIN | -1.32 | 193809040_MIN_NYA |
| Tex Carleton | CHN | -1.32 | 193809032_CHN_CIN |
Based on accumulated WAA for this season up to 1938-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 7.58 | Paul Derringer | 261 | CIN |
| +008+ | 7.09 | Bill Lee | 244.3 | CHN |
| +010+ | 6.96 | Lou Fette | 218 | ATL |
| +016+ | 6.62 | Red Ruffing | 215 | NYA |
| +017+ | 6.57 | Danny MacFayden | 176 | ATL |
| +022+ | 5.61 | Bill McGee | 191 | SLN |
| +026+ | 5.39 | Freddie Fitzsimmons | 167.7 | LAN |
| +027+ | 5.24 | Russ Bauers | 203.7 | PIT |
| +028+ | 5.13 | Carl Hubbell | 179 | SFN |
| +029+ | 5.05 | Thornton Lee | 209.3 | CHA |
| +030+ | 5.02 | Clay Bryant | 219.3 | CHN |
| +038+ | 4.37 | Charlie Root | 128.3 | CHN |
| +039+ | 4.33 | Dutch Leonard | 195.3 | MIN |
| +044+ | 3.65 | Jim Tobin | 200.3 | PIT |
| +045+ | 3.64 | Bob Weiland | 205 | SLN |
| +047+ | 3.58 | Ted Lyons | 161.7 | CHA |
| +048+ | 3.5 | Jim Turner | 223.3 | ATL |
| +050+ | 3.31 | Ira Hutchinson | 120 | ATL |
| +051+ | 3.26 | Dick Errickson | 98.3 | ATL |
| +052+ | 3.26 | Bob Klinger | 127.7 | PIT |
| +053+ | 3.2 | Tot Pressnell | 179.3 | LAN |
| +055+ | 3.1 | Dizzy Dean | 60.7 | CHN |
| +056+ | 3.08 | Bill Swift | 123.7 | PIT |
| +059+ | 2.91 | Lon Warneke | 180.7 | SLN |
| +061+ | 2.79 | Johnny Rigney | 127 | CHA |
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