| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 4.9 | 193808281_PHI_CHN |
| Danny MacFayden | ATL | 4.37 | 193808281_ATL_SLN |
| Paul Derringer | CIN | 3.69 | 193808301_LAN_CIN |
| Red Ruffing | NYA | 3.58 | 193808280_BAL_NYA |
| Russ Bauers | PIT | 2.22 | 193808280_LAN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Chase | MIN | -3.17 | 193808290_CLE_MIN |
| Nels Potter | OAK | -2.08 | 193808300_CLE_OAK |
| Bobo Newsom | BAL | -2.04 | 193808280_BAL_NYA |
| Elden Auker | DET | -1.41 | 193808290_DET_BOS |
| Hugh Mulcahy | PHI | -1.09 | 193808281_PHI_CHN |
Based on accumulated WAA for this season up to 1938-08-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 6.72 | Paul Derringer | 251 | CIN |
| +009+ | 6.71 | Bill Lee | 227 | CHN |
| +011+ | 6.65 | Lou Fette | 201.7 | ATL |
| +012+ | 6.64 | Red Ruffing | 206 | NYA |
| +017+ | 6.29 | Bill McGee | 176.3 | SLN |
| +020+ | 5.72 | Danny MacFayden | 167 | ATL |
| +022+ | 5.53 | Johnny Vander Meer | 180 | CIN |
| +023+ | 5.12 | Carl Hubbell | 179 | SFN |
| +027+ | 4.9 | Thornton Lee | 194.3 | CHA |
| +028+ | 4.71 | Freddie Fitzsimmons | 158.7 | LAN |
| +032+ | 4.46 | Dutch Leonard | 181.3 | MIN |
| +034+ | 4.43 | Jim Tobin | 197 | PIT |
| +037+ | 4.16 | Russ Bauers | 190 | PIT |
| +043+ | 3.78 | Bob Weiland | 197.7 | SLN |
| +044+ | 3.75 | Lefty Gomez | 196 | NYA |
| +045+ | 3.67 | Ted Lyons | 161.7 | CHA |
| +046+ | 3.66 | Clay Bryant | 200.7 | CHN |
| +047+ | 3.53 | Charlie Root | 117.3 | CHN |
| +051+ | 3.28 | Cy Blanton | 144.7 | PIT |
| +052+ | 3.12 | Dizzy Dean | 60.7 | CHN |
| +053+ | 3.08 | Jim Turner | 214.3 | ATL |
| +054+ | 2.92 | Bill Lohrman | 113 | SFN |
| +055+ | 2.91 | Bill Swift | 121.7 | PIT |
| +056+ | 2.89 | Larry French | 186.7 | CHN |
| +058+ | 2.75 | Ira Hutchinson | 114 | ATL |
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