| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Ruffing | NYA | 6.67 | 193908270_NYA_DET |
| Bob Feller | CLE | 4.27 | 193908271_BOS_CLE |
| Paul Derringer | CIN | 2.56 | 193908270_CIN_SFN |
| Carl Hubbell | SFN | 2.46 | 193908270_CIN_SFN |
| Mace Brown | PIT | 1.25 | 193908271_PIT_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Buck Ross | OAK | -5.18 | 193908280_OAK_CHA |
| Vern Kennedy | BAL | -2.58 | 193908271_MIN_BAL |
| Ray Harrell | PHI | -1 | 193908272_CHN_PHI |
| Alex Carrasquel | MIN | -0.73 | 193908280_MIN_BAL |
| Elden Auker | BOS | -0.6 | 193908280_BOS_CLE |
Based on accumulated WAA for this season up to 1939-08-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.13 | Bucky Walters | 244 | CIN |
| +004+ | 9.25 | Red Ruffing | 204 | NYA |
| +006+ | 8.37 | Bob Feller | 229.3 | CLE |
| +012+ | 6.16 | Lefty Grove | 153 | BOS |
| +014+ | 5.76 | Paul Derringer | 228 | CIN |
| +017+ | 4.88 | Curt Davis | 204 | SLN |
| +018+ | 4.64 | Hugh Casey | 159 | LAN |
| +021+ | 4.54 | Claude Passeau | 212.7 | TOT |
| +024+ | 4.44 | Lou Fette | 139 | ATL |
| +025+ | 4.43 | Bump Hadley | 123 | NYA |
| +028+ | 4.37 | Bob Bowman | 129.7 | SLN |
| +029+ | 4.36 | Mace Brown | 155.3 | PIT |
| +031+ | 4.21 | Carl Hubbell | 108 | SFN |
| +035+ | 4.1 | Bill Lohrman | 156.7 | SFN |
| +036+ | 4.07 | Steve Sundra | 82 | NYA |
| +037+ | 3.82 | Ted Lyons | 129.7 | CHA |
| +038+ | 3.66 | Cliff Melton | 160.7 | SFN |
| +041+ | 3.62 | Mort Cooper | 155.7 | SLN |
| +042+ | 3.52 | Dutch Leonard | 208.3 | MIN |
| +043+ | 3.47 | Atley Donald | 144.7 | NYA |
| +045+ | 3.34 | Milt Shoffner | 142.7 | TOT |
| +049+ | 3.13 | Whitey Moore | 154.7 | CIN |
| +051+ | 3.04 | Marius Russo | 78 | NYA |
| +052+ | 3.02 | Bill Posedel | 184.3 | ATL |
| +058+ | 2.57 | Larry French | 138.3 | CHN |
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