| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 7.2 | 193905140_LAN_ATL |
| Red Ruffing | NYA | 5.21 | 193905140_NYA_OAK |
| Lefty Grove | BOS | 4.77 | 193905140_BOS_MIN |
| Bill Lee | CHN | 3.91 | 193905130_CHN_PIT |
| Carl Hubbell | SFN | 3.21 | 193905140_PHI_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -3.56 | 193905130_DET_BAL |
| Vern Kennedy | DET | -3.32 | 193905130_DET_BAL |
| Max Butcher | PHI | -0.65 | 193905140_PHI_SFN |
| Hy Vandenberg | SFN | -0.29 | 193905120_PHI_SFN |
| Eddie Smith | CHA | -0.22 | 193905130_CLE_CHA |
Based on accumulated WAA for this season up to 1939-05-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.31 | Lou Fette | 49 | ATL |
| +002+ | 2.71 | Tommy Bridges | 36 | DET |
| +003+ | 2.24 | Al Milnar | 26 | CLE |
| +004+ | 2.21 | Red Ruffing | 41 | NYA |
| +006+ | 2.09 | Rip Sewell | 36.3 | PIT |
| +007+ | 2.04 | Curt Davis | 45 | SLN |
| +008+ | 1.88 | Lon Warneke | 43.3 | SLN |
| +009+ | 1.84 | Bill Lee | 47.7 | CHN |
| +013+ | 1.72 | Danny MacFayden | 41 | ATL |
| +015+ | 1.66 | Whit Wyatt | 34.7 | LAN |
| +018+ | 1.49 | Willis Hudlin | 40.3 | CLE |
| +020+ | 1.45 | George Caster | 41.3 | OAK |
| +023+ | 1.32 | Bob Weiland | 26.7 | SLN |
| +024+ | 1.31 | Bob Feller | 56.3 | CLE |
| XXXXX | 1.16 | Lefty Gomez | 27.7 | NYA |
| XXXXX | 1.13 | Syl Johnson | 17.3 | PHI |
| XXXXX | 1.13 | Harry Gumbert | 41.7 | SFN |
| XXXXX | 1.1 | Joe Bowman | 22 | PIT |
| XXXXX | 1.08 | Whitey Moore | 37.3 | CIN |
| XXXXX | 0.98 | Bob Bowman | 21 | SLN |
| XXXXX | 0.96 | Carl Hubbell | 12 | SFN |
| XXXXX | 0.91 | Bill Posedel | 30 | ATL |
| XXXXX | 0.88 | Woody Rich | 25.3 | BOS |
| XXXXX | 0.87 | Lefty Grove | 34.3 | BOS |
| XXXXX | 0.84 | Ted Lyons | 25 | CHA |
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