| Starter | Tm | Tier | Game |
|---|---|---|---|
| Danny MacFayden | ATL | 5.3 | 193808040_PIT_ATL |
| Lefty Grove | BOS | 4.67 | 193808050_BOS_DET |
| Johnny Allen | CLE | 3.87 | 193808060_NYA_CLE |
| Paul Derringer | CIN | 3.02 | 193808050_CIN_LAN |
| Thornton Lee | CHA | 2.39 | 193808041_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Kelley | MIN | -2.7 | 193808040_MIN_BAL |
| Hugh Mulcahy | PHI | -2.5 | 193808050_SLN_PHI |
| Les Tietje | BAL | -1.78 | 193808060_OAK_BAL |
| Al Williams | OAK | -1.62 | 193808050_OAK_BAL |
| Elden Auker | DET | -0.66 | 193808050_BOS_DET |
Based on accumulated WAA for this season up to 1938-08-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 6.47 | Johnny Vander Meer | 171 | CIN |
| +005+ | 6.33 | Bill Lee | 185.7 | CHN |
| +007+ | 6.1 | Paul Derringer | 199 | CIN |
| +010+ | 5.58 | Danny MacFayden | 130 | ATL |
| +014+ | 5.2 | Carl Hubbell | 158.7 | SFN |
| +015+ | 5.07 | Lou Fette | 165 | ATL |
| +018+ | 4.77 | Clay Bryant | 157.3 | CHN |
| +020+ | 4.37 | Lefty Grove | 155.7 | BOS |
| +025+ | 3.95 | Bill McGee | 133 | SLN |
| +029+ | 3.78 | Thornton Lee | 148.7 | CHA |
| +031+ | 3.53 | Peaches Davis | 128.7 | CIN |
| +032+ | 3.26 | Jim Tobin | 148 | PIT |
| +034+ | 3.25 | Johnny Allen | 155 | CLE |
| +033+ | 3.25 | Red Ruffing | 152 | NYA |
| +037+ | 3.14 | Ted Lyons | 127.7 | CHA |
| +038+ | 3.14 | Bob Weiland | 163.3 | SLN |
| +039+ | 3.07 | Dizzy Dean | 47.7 | CHN |
| +041+ | 3.03 | Dutch Leonard | 151 | MIN |
| +044+ | 2.88 | Charlie Root | 83.7 | CHN |
| +045+ | 2.88 | Larry French | 163.7 | CHN |
| +048+ | 2.76 | Jack Wilson | 117.3 | BOS |
| +049+ | 2.73 | Tot Pressnell | 149.7 | LAN |
| +050+ | 2.69 | Lon Warneke | 133 | SLN |
| +051+ | 2.67 | Bob Klinger | 111.7 | PIT |
| +053+ | 2.6 | Cy Blanton | 111 | PIT |
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