| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | BOS | 4.89 | 193906111_BOS_CHA |
| Red Ruffing | NYA | 4.35 | 193906111_NYA_BAL |
| Dizzy Dean | CHN | 3.2 | 193906112_CHN_ATL |
| Danny MacFayden | ATL | 2.79 | 193906111_CHN_ATL |
| Paul Derringer | CIN | 2.55 | 193906140_PHI_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -3.37 | 193906112_NYA_BAL |
| Ray Harrell | PHI | -2.03 | 193906102_SLN_PHI |
| Earl Whitehill | CHN | -1.76 | 193906100_CHN_ATL |
| Lynn Nelson | OAK | -1.21 | 193906140_BAL_OAK |
| Bobo Newsom | DET | -1.14 | 193906110_MIN_DET |
Based on accumulated WAA for this season up to 1939-06-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.62 | Bob Feller | 105.3 | CLE |
| +002+ | 4.58 | Lou Fette | 70 | ATL |
| +006+ | 3.74 | Willis Hudlin | 86 | CLE |
| +005+ | 3.74 | Tommy Bridges | 76.7 | DET |
| +007+ | 3.66 | Bucky Walters | 95.7 | CIN |
| +008+ | 3.6 | Whitey Moore | 86.7 | CIN |
| +012+ | 2.98 | Bump Hadley | 54.3 | NYA |
| +014+ | 2.93 | Lon Warneke | 78 | SLN |
| +017+ | 2.64 | Curt Davis | 95.7 | SLN |
| +020+ | 2.56 | Bill McGee | 47.7 | SLN |
| +023+ | 2.41 | Paul Derringer | 93.7 | CIN |
| +028+ | 2.3 | Whit Wyatt | 46.7 | LAN |
| +031+ | 2.12 | Bill Swift | 42.7 | PIT |
| +033+ | 2.05 | Red Ruffing | 78.3 | NYA |
| +036+ | 1.99 | Lefty Grove | 70 | BOS |
| +037+ | 1.99 | Lefty Gomez | 59 | NYA |
| +038+ | 1.97 | Atley Donald | 52.7 | NYA |
| +040+ | 1.84 | Hugh Casey | 37.3 | LAN |
| +041+ | 1.83 | Bill Lohrman | 50.3 | SFN |
| +044+ | 1.63 | Rip Sewell | 76.3 | PIT |
| +045+ | 1.63 | Bob Weiland | 55 | SLN |
| +051+ | 1.52 | Bob Klinger | 89.3 | PIT |
| +055+ | 1.47 | Dizzy Dean | 25.3 | CHN |
| +057+ | 1.4 | Lee Grissom | 58.3 | CIN |
| +060+ | 1.25 | Van Mungo | 55.7 | LAN |
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