| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 8.66 | 193905190_ATL_PIT |
| Red Ruffing | NYA | 6.14 | 193905190_CHA_NYA |
| Bill Lee | CHN | 4.03 | 193905180_LAN_CHN |
| Bob Weiland | SLN | 2.27 | 193905170_SFN_SLN |
| Van Mungo | LAN | 1.24 | 193905180_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hugh Mulcahy | PHI | -3.56 | 193905170_PHI_PIT |
| Vern Kennedy | BAL | -3.38 | 193905170_BAL_NYA |
| Bobo Newsom | DET | -2.77 | 193905170_DET_MIN |
| Earl Whitehill | CHN | -2.18 | 193905170_LAN_CHN |
| Buck Ross | OAK | -1.83 | 193905190_DET_OAK |
Based on accumulated WAA for this season up to 1939-05-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.21 | Lou Fette | 51.7 | ATL |
| +002+ | 3.18 | Tommy Bridges | 45 | DET |
| +003+ | 2.88 | Curt Davis | 56 | SLN |
| +004+ | 2.64 | Red Ruffing | 50 | NYA |
| +006+ | 2.23 | Al Milnar | 33 | CLE |
| +010+ | 1.87 | Lon Warneke | 43.3 | SLN |
| +013+ | 1.83 | Bill Lee | 56.7 | CHN |
| +014+ | 1.77 | Whit Wyatt | 43.7 | LAN |
| +015+ | 1.74 | Joe Bowman | 31 | PIT |
| +017+ | 1.59 | George Caster | 50.3 | OAK |
| +021+ | 1.5 | Woody Rich | 34.3 | BOS |
| +024+ | 1.45 | Willis Hudlin | 49.3 | CLE |
| +026+ | 1.43 | Vito Tamulis | 34.7 | LAN |
| +031+ | 1.26 | Bob Feller | 56.3 | CLE |
| XXXXX | 1.21 | Danny MacFayden | 41.7 | ATL |
| XXXXX | 1.16 | Lefty Gomez | 27.7 | NYA |
| XXXXX | 1.13 | Syl Johnson | 17.3 | PHI |
| XXXXX | 1.02 | Whitey Moore | 37.3 | CIN |
| XXXXX | 0.99 | Van Mungo | 29.3 | LAN |
| XXXXX | 0.99 | Bucky Walters | 50.3 | CIN |
| XXXXX | 0.97 | Carl Hubbell | 12 | SFN |
| XXXXX | 0.95 | Atley Donald | 16.7 | NYA |
| XXXXX | 0.9 | Lee Grissom | 25 | CIN |
| XXXXX | 0.88 | Lynn Nelson | 19.7 | OAK |
| XXXXX | 0.87 | Lefty Grove | 34.3 | BOS |
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