| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 5.84 | 193806200_CHN_LAN |
| Carl Hubbell | SFN | 4.92 | 193806210_CIN_SFN |
| Red Ruffing | NYA | 3.9 | 193806210_NYA_CLE |
| Bob Feller | CLE | 2.31 | 193806210_NYA_CLE |
| Johnny Vander Meer | CIN | 1.67 | 193806190_CIN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Kelley | MIN | -2.3 | 193806210_MIN_CHA |
| Wayne LaMaster | PHI | -1.48 | 193806192_PIT_PHI |
| Bill Dietrich | CHA | -1.17 | 193806192_BOS_CHA |
| Earl Whitehill | CLE | -0.88 | 193806190_OAK_CLE |
| Charlie Wagner | BOS | -0.71 | 193806212_BOS_DET |
Based on accumulated WAA for this season up to 1938-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.79 | Bill Lee | 115.3 | CHN |
| +004+ | 4.85 | Johnny Vander Meer | 101.7 | CIN |
| +005+ | 4.79 | Lefty Grove | 117.7 | BOS |
| +009+ | 3.82 | Paul Derringer | 117 | CIN |
| +010+ | 3.56 | Bob Feller | 101 | CLE |
| +012+ | 3.28 | Bill McGee | 88 | SLN |
| +017+ | 2.97 | Tot Pressnell | 90.7 | LAN |
| +018+ | 2.96 | Danny MacFayden | 87.3 | ATL |
| +019+ | 2.94 | Cliff Melton | 113 | SFN |
| +020+ | 2.89 | Jack Wilson | 82.3 | BOS |
| +021+ | 2.85 | Carl Hubbell | 95 | SFN |
| +022+ | 2.8 | Johnny Allen | 99.7 | CLE |
| +023+ | 2.63 | Lynn Nelson | 90 | OAK |
| +025+ | 2.54 | Bob Klinger | 65.7 | PIT |
| +026+ | 2.49 | Freddie Fitzsimmons | 81.7 | LAN |
| +028+ | 2.43 | Bill Swift | 62.3 | PIT |
| +033+ | 2.15 | Monty Stratton | 48.7 | CHA |
| +034+ | 2.12 | Lou Fette | 91.7 | ATL |
| +036+ | 1.94 | Hal Schumacher | 94.3 | SFN |
| +038+ | 1.92 | Dizzy Dean | 25.7 | CHN |
| +039+ | 1.91 | Jim Weaver | 69 | TOT |
| +041+ | 1.86 | Ted Lyons | 66.7 | CHA |
| +042+ | 1.85 | John Whitehead | 68.7 | CHA |
| +048+ | 1.77 | Red Ruffing | 90.3 | NYA |
| +049+ | 1.69 | Peaches Davis | 67 | CIN |
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