| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 8.02 | 193905270_ATL_LAN |
| Red Ruffing | NYA | 6.53 | 193905250_DET_NYA |
| Lefty Grove | BOS | 4.59 | 193905271_MIN_BOS |
| Bill Lee | CHN | 3.53 | 193905260_PIT_CHN |
| Carl Hubbell | SFN | 3.42 | 193905250_SFN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roxie Lawson | BAL | -3.89 | 193905250_BAL_MIN |
| Hugh Mulcahy | PHI | -3.22 | 193905250_PHI_CHN |
| Jimmie DeShong | MIN | -2.93 | 193905271_MIN_BOS |
| Oral Hildebrand | NYA | -1.68 | 193905260_OAK_NYA |
| Roy Parmelee | OAK | -1.11 | 193905271_OAK_NYA |
Based on accumulated WAA for this season up to 1939-05-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.99 | Curt Davis | 66 | SLN |
| +002+ | 3.51 | Lou Fette | 61 | ATL |
| +003+ | 3.21 | Red Ruffing | 59 | NYA |
| +005+ | 2.68 | Tommy Bridges | 60 | DET |
| +007+ | 2.49 | Willis Hudlin | 58.3 | CLE |
| +008+ | 2.44 | Lon Warneke | 56.7 | SLN |
| +010+ | 2.28 | Bob Feller | 71.3 | CLE |
| +013+ | 2.2 | Whitey Moore | 55 | CIN |
| +016+ | 2.11 | Whit Wyatt | 44.7 | LAN |
| +020+ | 1.82 | Bucky Walters | 68.3 | CIN |
| +023+ | 1.69 | Joe Bowman | 47 | PIT |
| +025+ | 1.6 | Rip Sewell | 61 | PIT |
| +028+ | 1.47 | Ted Lyons | 35 | CHA |
| +029+ | 1.45 | Van Mungo | 37.3 | LAN |
| +032+ | 1.41 | Al Milnar | 45 | CLE |
| +033+ | 1.39 | Lee Grissom | 38 | CIN |
| +036+ | 1.35 | Archie McKain | 33.3 | DET |
| +038+ | 1.33 | Oral Hildebrand | 31 | NYA |
| +040+ | 1.32 | Carl Hubbell | 21.3 | SFN |
| +039+ | 1.32 | Dizzy Dean | 14 | CHN |
| +041+ | 1.31 | Syl Johnson | 18.3 | PHI |
| +044+ | 1.27 | Bob Weiland | 36.3 | SLN |
| +045+ | 1.27 | Woody Rich | 46.3 | BOS |
| +046+ | 1.27 | George Caster | 56.3 | OAK |
| +047+ | 1.26 | Alex Carrasquel | 38.7 | MIN |
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