| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 7.74 | 193905220_ATL_CHN |
| Lefty Grove | BOS | 4.42 | 193905210_DET_BOS |
| Bill Lee | CHN | 4.14 | 193905220_ATL_CHN |
| Lefty Gomez | NYA | 3.92 | 193905210_CLE_NYA |
| Carl Hubbell | SFN | 3.74 | 193905210_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vern Kennedy | BAL | -2.98 | 193905220_BAL_OAK |
| Hugh Mulcahy | PHI | -2.8 | 193905210_PHI_SLN |
| Oral Hildebrand | NYA | -1.86 | 193905200_CHA_NYA |
| Roy Parmelee | OAK | -0.81 | 193905210_BAL_OAK |
| Denny Galehouse | BOS | -0.33 | 193905200_BAL_BOS |
Based on accumulated WAA for this season up to 1939-05-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.4 | Lou Fette | 57 | ATL |
| +002+ | 3.03 | Curt Davis | 57 | SLN |
| +003+ | 2.78 | Tommy Bridges | 51 | DET |
| +004+ | 2.7 | Red Ruffing | 50 | NYA |
| +005+ | 2.57 | Lon Warneke | 52.3 | SLN |
| +011+ | 1.99 | Whit Wyatt | 44.7 | LAN |
| +017+ | 1.69 | Bucky Walters | 59.3 | CIN |
| +018+ | 1.59 | Bill Lee | 64.7 | CHN |
| +022+ | 1.54 | Woody Rich | 34.3 | BOS |
| +023+ | 1.54 | Vito Tamulis | 34.7 | LAN |
| +021+ | 1.54 | Willis Hudlin | 49.3 | CLE |
| +025+ | 1.5 | Whitey Moore | 46.3 | CIN |
| +027+ | 1.42 | Al Milnar | 37 | CLE |
| +028+ | 1.41 | Ted Lyons | 35 | CHA |
| +029+ | 1.4 | Joe Bowman | 38 | PIT |
| +033+ | 1.31 | Bob Feller | 62.3 | CLE |
| +034+ | 1.3 | Dizzy Dean | 14 | CHN |
| +037+ | 1.29 | Danny MacFayden | 41.7 | ATL |
| XXXXX | 1.17 | George Caster | 56.3 | OAK |
| XXXXX | 1.17 | Syl Johnson | 17.3 | PHI |
| XXXXX | 1.12 | Lefty Grove | 43.3 | BOS |
| XXXXX | 1.08 | Van Mungo | 29.3 | LAN |
| XXXXX | 1.06 | Lee Grissom | 33 | CIN |
| XXXXX | 0.97 | Atley Donald | 16.7 | NYA |
| XXXXX | 0.92 | Harry Gumbert | 55.7 | SFN |
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