| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 5.97 | 193907272_ATL_CIN |
| Red Ruffing | NYA | 5.11 | 193907260_BAL_NYA |
| Bob Feller | CLE | 4.03 | 193907280_CLE_MIN |
| Paul Derringer | CIN | 3.17 | 193907271_ATL_CIN |
| Mace Brown | PIT | 2.18 | 193907280_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Buck Ross | OAK | -5.35 | 193907280_DET_OAK |
| Vern Kennedy | BAL | -3.79 | 193907280_BAL_BOS |
| Max Butcher | PHI | -1.04 | 193907270_PHI_PIT |
| Schoolboy Rowe | DET | -0.9 | 193907280_DET_OAK |
| Ken Chase | MIN | -0.89 | 193907280_CLE_MIN |
Based on accumulated WAA for this season up to 1939-07-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.31 | Bucky Walters | 187.3 | CIN |
| +003+ | 6.38 | Bob Feller | 177.3 | CLE |
| +004+ | 6.29 | Red Ruffing | 144 | NYA |
| +007+ | 5.47 | Atley Donald | 113.3 | NYA |
| +010+ | 5.23 | Lou Fette | 112.3 | ATL |
| +014+ | 4.82 | Paul Derringer | 167.7 | CIN |
| +015+ | 4.53 | Lefty Grove | 120 | BOS |
| +017+ | 4.41 | Whit Wyatt | 109 | LAN |
| +018+ | 4.4 | Tommy Bridges | 131.7 | DET |
| +020+ | 4.36 | Bump Hadley | 98.3 | NYA |
| +022+ | 3.99 | Hugh Casey | 109 | LAN |
| +023+ | 3.8 | Mace Brown | 110.7 | PIT |
| +026+ | 3.55 | Bill Posedel | 133.7 | ATL |
| +027+ | 3.52 | Milt Shoffner | 116.3 | ATL |
| +029+ | 3.34 | Mort Cooper | 113 | SLN |
| +030+ | 3.3 | Whitey Moore | 121 | CIN |
| +031+ | 3.19 | Bobo Newsom | 178 | TOT |
| +036+ | 3 | Curt Davis | 155 | SLN |
| +037+ | 2.96 | Bill Swift | 80 | PIT |
| +039+ | 2.9 | Ted Lyons | 109 | CHA |
| +041+ | 2.74 | Bill Lohrman | 110.7 | SFN |
| +044+ | 2.65 | Claude Passeau | 159 | TOT |
| +043+ | 2.65 | Danny MacFayden | 133 | ATL |
| +047+ | 2.51 | Oral Hildebrand | 84.3 | NYA |
| +049+ | 2.48 | Bob Klinger | 151 | PIT |
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