| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 6.67 | 193807290_CHN_PHI |
| Danny MacFayden | ATL | 4.62 | 193807311_SLN_ATL |
| 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 |
|---|---|---|---|
| Bobo Newsom | BAL | -4.17 | 193807300_BOS_BAL |
| Wayne LaMaster | PHI | -2.92 | 193807312_CHN_PHI |
| Chief Hogsett | MIN | -2.11 | 193807290_MIN_CLE |
| Eddie Smith | OAK | -0.91 | 193807301_OAK_DET |
| Tex Carleton | CHN | -0.73 | 193807311_CHN_PHI |
Based on accumulated WAA for this season up to 1938-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.93 | Bill Lee | 181.7 | CHN |
| +004+ | 6.1 | Johnny Vander Meer | 163 | CIN |
| +005+ | 6.03 | Carl Hubbell | 152.3 | SFN |
| +012+ | 5.32 | Paul Derringer | 189 | CIN |
| +013+ | 5.09 | Danny MacFayden | 121 | ATL |
| +019+ | 4.16 | Lou Fette | 156 | ATL |
| +022+ | 3.83 | Clay Bryant | 148.3 | CHN |
| +025+ | 3.71 | Ted Lyons | 118.7 | CHA |
| +028+ | 3.6 | Johnny Allen | 150 | CLE |
| +029+ | 3.53 | Peaches Davis | 128.7 | CIN |
| +032+ | 3.3 | Red Ruffing | 144 | NYA |
| +033+ | 3.29 | Thornton Lee | 139.7 | CHA |
| +034+ | 3.25 | Bill McGee | 124 | SLN |
| +035+ | 3.06 | Dizzy Dean | 47.7 | CHN |
| +036+ | 3.02 | Bob Weiland | 154 | SLN |
| +037+ | 3.02 | Bill Lohrman | 73 | SFN |
| +040+ | 2.87 | Dutch Leonard | 139 | MIN |
| +041+ | 2.86 | Charlie Root | 83.7 | CHN |
| +044+ | 2.7 | Cy Blanton | 104 | PIT |
| +045+ | 2.67 | Bob Klinger | 103.7 | PIT |
| +047+ | 2.56 | Cliff Melton | 159.7 | SFN |
| +048+ | 2.55 | Bob Feller | 160.3 | CLE |
| +049+ | 2.51 | Russ Bauers | 152 | PIT |
| +051+ | 2.42 | Jack Wilson | 110 | BOS |
| +052+ | 2.4 | Jim Tobin | 140 | PIT |
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