| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 4.9 | 193808281_PHI_CHN |
| Danny MacFayden | ATL | 4.37 | 193808281_ATL_SLN |
| Paul Derringer | CIN | 4.2 | 193808260_ATL_CIN |
| Red Ruffing | NYA | 3.58 | 193808280_BAL_NYA |
| Bill McGee | SLN | 2.87 | 193808270_SFN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wes Ferrell | NYA | -5.62 | 193808261_CLE_NYA |
| Frank Gabler | CHA | -4.1 | 193808271_CHA_BOS |
| Russ Van Atta | BAL | -2.66 | 193808272_BAL_OAK |
| Al Smith | PHI | -2.1 | 193808260_PHI_PIT |
| Lynn Nelson | OAK | -1.95 | 193808261_BAL_OAK |
Based on accumulated WAA for this season up to 1938-08-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +009+ | 6.67 | Bill Lee | 227 | CHN |
| +012+ | 6.62 | Paul Derringer | 242 | CIN |
| +010+ | 6.62 | Lou Fette | 201.7 | ATL |
| +013+ | 6.6 | Red Ruffing | 206 | NYA |
| +015+ | 6.27 | Bill McGee | 176.3 | SLN |
| +020+ | 5.69 | Danny MacFayden | 167 | ATL |
| +021+ | 5.5 | Johnny Vander Meer | 180 | CIN |
| +023+ | 5.06 | Carl Hubbell | 179 | SFN |
| +026+ | 4.87 | Thornton Lee | 194.3 | CHA |
| +028+ | 4.65 | Freddie Fitzsimmons | 158.7 | LAN |
| +031+ | 4.43 | Dutch Leonard | 181.3 | MIN |
| +037+ | 4.12 | Russ Bauers | 190 | PIT |
| +041+ | 3.76 | Bob Weiland | 197.7 | SLN |
| +043+ | 3.72 | Jim Tobin | 188 | PIT |
| +044+ | 3.67 | Lefty Gomez | 187 | NYA |
| +046+ | 3.65 | Ted Lyons | 161.7 | CHA |
| +047+ | 3.63 | Charlie Root | 114.3 | CHN |
| +048+ | 3.63 | Clay Bryant | 200.7 | CHN |
| +051+ | 3.11 | Dizzy Dean | 60.7 | CHN |
| +052+ | 3.05 | Jack Wilson | 154.7 | BOS |
| +053+ | 3.02 | Lon Warneke | 164.7 | SLN |
| +055+ | 2.89 | Bill Swift | 121.7 | PIT |
| +056+ | 2.88 | Bill Lohrman | 113 | SFN |
| +057+ | 2.87 | Larry French | 184.7 | CHN |
| +058+ | 2.73 | Ira Hutchinson | 114 | ATL |
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