| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 6.67 | 193807290_CHN_PHI |
| Carl Hubbell | SFN | 5.06 | 193807280_SLN_SFN |
| Johnny Allen | CLE | 4.39 | 193807290_MIN_CLE |
| Red Ruffing | NYA | 3.43 | 193807300_NYA_CHA |
| Johnny Vander Meer | CIN | 2.8 | 193807290_CIN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmie DeShong | MIN | -4.8 | 193807280_MIN_DET |
| Bobo Newsom | BAL | -4.17 | 193807300_BOS_BAL |
| Hugh Mulcahy | PHI | -2.81 | 193807290_CHN_PHI |
| Eddie Smith | OAK | -0.91 | 193807301_OAK_DET |
| Elden Auker | DET | -0.69 | 193807290_OAK_DET |
Based on accumulated WAA for this season up to 1938-07-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.75 | Bill Lee | 177.3 | CHN |
| +004+ | 6.17 | Johnny Vander Meer | 163 | CIN |
| +005+ | 6.1 | Carl Hubbell | 152.3 | SFN |
| +010+ | 5.4 | Paul Derringer | 189 | CIN |
| +016+ | 4.43 | Danny MacFayden | 112 | ATL |
| +021+ | 3.86 | Ted Lyons | 110.7 | CHA |
| +022+ | 3.86 | Clay Bryant | 148.3 | CHN |
| +025+ | 3.72 | Lou Fette | 147 | ATL |
| +026+ | 3.64 | Johnny Allen | 150 | CLE |
| +029+ | 3.43 | Red Ruffing | 144 | NYA |
| +030+ | 3.4 | Peaches Davis | 124.7 | CIN |
| +033+ | 3.19 | Thornton Lee | 133 | CHA |
| +034+ | 3.14 | Bill McGee | 123 | SLN |
| +035+ | 3.07 | Dizzy Dean | 47.7 | CHN |
| +036+ | 3.05 | Bill Lohrman | 73 | SFN |
| +037+ | 3 | Bob Weiland | 154 | SLN |
| +040+ | 2.9 | Dutch Leonard | 139 | MIN |
| +042+ | 2.71 | Cy Blanton | 104 | PIT |
| +043+ | 2.68 | Bob Klinger | 103.7 | PIT |
| +044+ | 2.63 | Cliff Melton | 159.7 | SFN |
| +046+ | 2.58 | Bob Feller | 160.3 | CLE |
| +047+ | 2.57 | Bill Swift | 96 | PIT |
| +048+ | 2.52 | Russ Bauers | 152 | PIT |
| +050+ | 2.41 | Jim Tobin | 140 | PIT |
| +051+ | 2.4 | Jack Wilson | 110 | BOS |
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