| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 4.9 | 193808281_PHI_CHN |
| Danny MacFayden | ATL | 4.37 | 193808281_ATL_SLN |
| Red Ruffing | NYA | 3.58 | 193808280_BAL_NYA |
| Bill McGee | SLN | 2.87 | 193808270_SFN_SLN |
| Russ Bauers | PIT | 2.22 | 193808280_LAN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Gabler | CHA | -4.1 | 193808271_CHA_BOS |
| Ken Chase | MIN | -3.17 | 193808290_CLE_MIN |
| Russ Van Atta | BAL | -2.66 | 193808272_BAL_OAK |
| Nels Potter | OAK | -1.49 | 193808271_BAL_OAK |
| Elden Auker | DET | -1.41 | 193808290_DET_BOS |
Based on accumulated WAA for this season up to 1938-08-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 6.71 | Bill Lee | 227 | CHN |
| +011+ | 6.65 | Lou Fette | 201.7 | ATL |
| +010+ | 6.65 | Paul Derringer | 242 | CIN |
| +012+ | 6.63 | Red Ruffing | 206 | NYA |
| +016+ | 6.3 | Bill McGee | 176.3 | SLN |
| +020+ | 5.71 | Danny MacFayden | 167 | ATL |
| +021+ | 5.52 | Johnny Vander Meer | 180 | CIN |
| +024+ | 5.1 | Carl Hubbell | 179 | SFN |
| +026+ | 4.9 | Thornton Lee | 194.3 | CHA |
| +028+ | 4.69 | Freddie Fitzsimmons | 158.7 | LAN |
| +031+ | 4.46 | Dutch Leonard | 181.3 | MIN |
| +036+ | 4.15 | Russ Bauers | 190 | PIT |
| +041+ | 3.78 | Bob Weiland | 197.7 | SLN |
| +043+ | 3.75 | Jim Tobin | 188 | PIT |
| +042+ | 3.75 | Lefty Gomez | 196 | NYA |
| +045+ | 3.67 | Ted Lyons | 161.7 | CHA |
| +046+ | 3.66 | Clay Bryant | 200.7 | CHN |
| +047+ | 3.65 | Charlie Root | 114.3 | CHN |
| +050+ | 3.27 | Cy Blanton | 144.7 | PIT |
| +052+ | 3.12 | Dizzy Dean | 60.7 | CHN |
| +053+ | 3.04 | Lon Warneke | 164.7 | SLN |
| +054+ | 2.91 | Bill Lohrman | 113 | SFN |
| +055+ | 2.91 | Bill Swift | 121.7 | PIT |
| +056+ | 2.9 | Larry French | 184.7 | CHN |
| +058+ | 2.75 | Ira Hutchinson | 114 | ATL |
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