| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 7.4 | 193908261_CIN_LAN |
| Red Ruffing | NYA | 6.67 | 193908270_NYA_DET |
| Bob Feller | CLE | 4.27 | 193908271_BOS_CLE |
| Lou Fette | ATL | 3.25 | 193908261_CHN_ATL |
| Carl Hubbell | SFN | 2.46 | 193908270_CIN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nels Potter | OAK | -6.89 | 193908260_OAK_CLE |
| 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 1939-08-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.15 | Bucky Walters | 244 | CIN |
| +004+ | 9.26 | Red Ruffing | 204 | NYA |
| +005+ | 8.39 | Bob Feller | 229.3 | CLE |
| +012+ | 6.18 | Lefty Grove | 153 | BOS |
| +014+ | 5.79 | Paul Derringer | 228 | CIN |
| +016+ | 4.89 | Curt Davis | 204 | SLN |
| +017+ | 4.66 | Hugh Casey | 159 | LAN |
| +020+ | 4.57 | Claude Passeau | 212.7 | TOT |
| +023+ | 4.45 | Lou Fette | 139 | ATL |
| +025+ | 4.44 | Bump Hadley | 123 | NYA |
| +028+ | 4.37 | Mace Brown | 155.3 | PIT |
| +030+ | 4.22 | Carl Hubbell | 108 | SFN |
| +034+ | 4.17 | Bob Bowman | 127.7 | SLN |
| +035+ | 4.11 | Bill Lohrman | 156.7 | SFN |
| +036+ | 4.08 | Steve Sundra | 82 | NYA |
| +037+ | 3.84 | Ted Lyons | 129.7 | CHA |
| +039+ | 3.68 | Cliff Melton | 160.7 | SFN |
| +041+ | 3.62 | Mort Cooper | 155.7 | SLN |
| +042+ | 3.54 | Dutch Leonard | 208.3 | MIN |
| +043+ | 3.5 | Atley Donald | 138.7 | NYA |
| +045+ | 3.35 | Milt Shoffner | 142.7 | TOT |
| +048+ | 3.14 | Whitey Moore | 154.7 | CIN |
| +051+ | 3.05 | Marius Russo | 78 | NYA |
| +052+ | 3.04 | Bill Posedel | 184.3 | ATL |
| +057+ | 2.72 | Bobo Newsom | 229.3 | TOT |
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