| 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 |
| Thornton Lee | CHA | 1.34 | 193905200_CHA_NYA |
| Cliff Melton | SFN | 1.25 | 193905200_SFN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Oral Hildebrand | NYA | -1.86 | 193905200_CHA_NYA |
| Buck Ross | OAK | -1.83 | 193905190_DET_OAK |
| Ken Chase | MIN | -1.56 | 193905190_CLE_MIN |
| Lefty Mills | BAL | -1.23 | 193905180_BAL_NYA |
| John Whitehead | CHA | -1.16 | 193905180_CHA_BOS |
Based on accumulated WAA for this season up to 1939-05-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.29 | Lou Fette | 51.7 | ATL |
| +002+ | 3.24 | Tommy Bridges | 45 | DET |
| +003+ | 2.94 | Curt Davis | 56 | SLN |
| +004+ | 2.7 | Red Ruffing | 50 | NYA |
| +005+ | 2.58 | Lon Warneke | 52.3 | SLN |
| +006+ | 2.29 | Al Milnar | 33 | CLE |
| +009+ | 1.89 | Bill Lee | 56.7 | CHN |
| +012+ | 1.84 | Whit Wyatt | 43.7 | LAN |
| +018+ | 1.64 | George Caster | 50.3 | OAK |
| +022+ | 1.54 | Woody Rich | 34.3 | BOS |
| +023+ | 1.52 | Willis Hudlin | 49.3 | CLE |
| +025+ | 1.5 | Whitey Moore | 46.3 | CIN |
| +026+ | 1.49 | Vito Tamulis | 34.7 | LAN |
| +028+ | 1.41 | Joe Bowman | 38 | PIT |
| +031+ | 1.29 | Bob Feller | 62.3 | CLE |
| +032+ | 1.28 | Danny MacFayden | 41.7 | ATL |
| XXXXX | 1.19 | Lefty Gomez | 27.7 | NYA |
| XXXXX | 1.16 | Syl Johnson | 17.3 | PHI |
| XXXXX | 1.05 | Bucky Walters | 50.3 | CIN |
| XXXXX | 1.04 | Van Mungo | 29.3 | LAN |
| XXXXX | 0.98 | Carl Hubbell | 12 | SFN |
| XXXXX | 0.97 | Atley Donald | 16.7 | NYA |
| XXXXX | 0.93 | Lee Grissom | 25 | CIN |
| XXXXX | 0.91 | Harry Gumbert | 55.7 | SFN |
| XXXXX | 0.91 | Lefty Grove | 34.3 | BOS |
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