| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 8.41 | 193907021_ATL_PHI |
| Lefty Grove | BOS | 5.19 | 193907021_NYA_BOS |
| Lefty Gomez | NYA | 3.64 | 193907021_NYA_BOS |
| Dizzy Dean | CHN | 2.72 | 193907022_CIN_CHN |
| Paul Derringer | CIN | 2.23 | 193907021_CIN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hugh Mulcahy | PHI | -4.3 | 193907021_ATL_PHI |
| Lefty Mills | BAL | -3.53 | 193907021_BAL_CLE |
| Buck Ross | OAK | -3.47 | 193907010_OAK_MIN |
| Johnny Rigney | CHA | -1.05 | 193906300_CHA_DET |
| Joe Haynes | MIN | -0.81 | 193907010_OAK_MIN |
Based on accumulated WAA for this season up to 1939-07-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.16 | Tommy Bridges | 112.7 | DET |
| +002+ | 5.17 | Bob Feller | 131 | CLE |
| +003+ | 4.9 | Bucky Walters | 133.3 | CIN |
| +007+ | 4.5 | Lou Fette | 91 | ATL |
| +008+ | 4.49 | Red Ruffing | 108 | NYA |
| +010+ | 3.99 | Whit Wyatt | 82.3 | LAN |
| +014+ | 3.47 | Atley Donald | 75.3 | NYA |
| +017+ | 3.34 | Lefty Grove | 96 | BOS |
| +019+ | 3.23 | Whitey Moore | 97.7 | CIN |
| +023+ | 3.09 | Paul Derringer | 125.7 | CIN |
| +028+ | 2.9 | Curt Davis | 117.3 | SLN |
| +029+ | 2.87 | Bump Hadley | 75.7 | NYA |
| +031+ | 2.52 | Bill Lohrman | 71.7 | SFN |
| +033+ | 2.44 | Lefty Gomez | 90 | NYA |
| +035+ | 2.42 | Lon Warneke | 102.3 | SLN |
| +040+ | 2.06 | Hugh Casey | 63.7 | LAN |
| +042+ | 2 | Dizzy Dean | 52.3 | CHN |
| +045+ | 1.84 | Claude Passeau | 112 | TOT |
| +052+ | 1.72 | Bill Posedel | 92.7 | ATL |
| +053+ | 1.64 | Bobo Newsom | 125.3 | TOT |
| +054+ | 1.62 | Oral Hildebrand | 63.3 | NYA |
| +055+ | 1.61 | Bob Klinger | 117.7 | PIT |
| +058+ | 1.58 | Harry Gumbert | 115.7 | SFN |
| +057+ | 1.58 | Willis Hudlin | 97.3 | CLE |
| +060+ | 1.51 | Ted Lyons | 83 | CHA |
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