| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 5.17 | 193808161_SLN_CHN |
| Red Ruffing | NYA | 3.11 | 193808162_NYA_MIN |
| Johnny Allen | CLE | 2.09 | 193808170_BAL_CLE |
| Bill McGee | SLN | 1.86 | 193808161_SLN_CHN |
| Jim Tobin | PIT | 1.25 | 193808150_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Chase | MIN | -1.93 | 193808161_NYA_MIN |
| Max Butcher | PHI | -1.51 | 193808170_ATL_PHI |
| Les Tietje | BAL | -1.36 | 193808160_BAL_CLE |
| Nels Potter | OAK | -1.13 | 193808172_OAK_BOS |
| Bucky Walters | CIN | -0.49 | 193808170_CIN_CHN |
Based on accumulated WAA for this season up to 1938-08-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 6.39 | Bill Lee | 207.7 | CHN |
| +006+ | 6.31 | Paul Derringer | 216 | CIN |
| +009+ | 5.95 | Danny MacFayden | 146 | ATL |
| +011+ | 5.55 | Carl Hubbell | 174 | SFN |
| +014+ | 5.47 | Johnny Vander Meer | 180 | CIN |
| +019+ | 5.17 | Lou Fette | 174 | ATL |
| +021+ | 4.98 | Bill McGee | 157 | SLN |
| +023+ | 4.7 | Red Ruffing | 179 | NYA |
| +025+ | 4.47 | Lefty Grove | 157.7 | BOS |
| +027+ | 4.35 | Russ Bauers | 173.3 | PIT |
| +032+ | 3.89 | Freddie Fitzsimmons | 145.7 | LAN |
| +033+ | 3.78 | Dutch Leonard | 160 | MIN |
| +035+ | 3.67 | Larry French | 180.3 | CHN |
| +037+ | 3.57 | Jim Tobin | 169.7 | PIT |
| +038+ | 3.56 | Lon Warneke | 149 | SLN |
| +041+ | 3.31 | Charlie Root | 92.3 | CHN |
| +042+ | 3.26 | Tot Pressnell | 160.3 | LAN |
| +044+ | 3.22 | Ira Hutchinson | 106 | ATL |
| +045+ | 3.14 | Clay Bryant | 181.3 | CHN |
| +047+ | 3.05 | Bob Weiland | 169.3 | SLN |
| +050+ | 2.89 | Dizzy Dean | 54.3 | CHN |
| +051+ | 2.86 | Bill Lohrman | 96.3 | SFN |
| +052+ | 2.78 | Cliff Melton | 182 | SFN |
| +054+ | 2.76 | Cy Blanton | 122.7 | PIT |
| +055+ | 2.73 | Thornton Lee | 167 | CHA |
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