| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 7.7 | 193906182_ATL_CIN |
| Lefty Grove | BOS | 4.11 | 193906182_CLE_BOS |
| Red Ruffing | NYA | 4.03 | 193906170_DET_NYA |
| Bob Feller | CLE | 3.39 | 193906181_CLE_BOS |
| Dizzy Dean | CHN | 2.43 | 193906181_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roxie Lawson | BAL | -4.02 | 193906192_BAL_MIN |
| Earl Whitehill | CHN | -1.13 | 193906170_LAN_CHN |
| Bobo Newsom | DET | -0.81 | 193906170_DET_NYA |
| Oral Hildebrand | NYA | -0.79 | 193906190_DET_NYA |
| Nels Potter | OAK | -0.69 | 193906182_CHA_OAK |
Based on accumulated WAA for this season up to 1939-06-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.18 | Lou Fette | 80.7 | ATL |
| +003+ | 4.31 | Bob Feller | 112.7 | CLE |
| +004+ | 4.27 | Bucky Walters | 104.7 | CIN |
| +005+ | 3.98 | Tommy Bridges | 85.7 | DET |
| +008+ | 3.61 | Willis Hudlin | 93 | CLE |
| +009+ | 3.54 | Whitey Moore | 86.7 | CIN |
| +010+ | 3.36 | Lon Warneke | 85 | SLN |
| +013+ | 3.08 | Whit Wyatt | 55.7 | LAN |
| +016+ | 2.89 | Red Ruffing | 87.3 | NYA |
| +017+ | 2.84 | Lefty Gomez | 68 | NYA |
| +026+ | 2.47 | Hugh Casey | 51.3 | LAN |
| +029+ | 2.33 | Curt Davis | 97.7 | SLN |
| +030+ | 2.28 | Dizzy Dean | 34.3 | CHN |
| +034+ | 2.12 | Lefty Grove | 78 | BOS |
| +036+ | 2.08 | Paul Derringer | 101.7 | CIN |
| +037+ | 2.07 | Atley Donald | 60.3 | NYA |
| +038+ | 2.06 | Bill Swift | 42.7 | PIT |
| +040+ | 1.99 | Dick Errickson | 40.7 | ATL |
| +041+ | 1.99 | Bob Weiland | 59 | SLN |
| +042+ | 1.9 | Bump Hadley | 58.7 | NYA |
| +044+ | 1.82 | Bob Klinger | 97.7 | PIT |
| +045+ | 1.76 | Bill McGee | 54.7 | SLN |
| +048+ | 1.71 | Bobo Newsom | 106.7 | TOT |
| +055+ | 1.51 | Syl Johnson | 37 | PHI |
| +061+ | 1.37 | Vern Kennedy | 94.7 | TOT |
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