| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 13.7 | 193910011_CIN_PIT |
| Bob Feller | CLE | 5.78 | 193910011_CLE_DET |
| Hugh Casey | LAN | 2.19 | 193910010_PHI_LAN |
| Claude Passeau | CHN | 1.86 | 193910010_SLN_CHN |
| Mort Cooper | SLN | 1.48 | 193909301_SLN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Bagby | BOS | -2.4 | 193909301_BOS_NYA |
| Roxie Lawson | BAL | -1.92 | 193909301_CHA_BAL |
| Joe Haynes | MIN | -1.75 | 193909300_MIN_OAK |
| Kirby Higbe | PHI | -0.57 | 193910010_PHI_LAN |
| Ken Heintzelman | PIT | -0.36 | 193910012_CIN_PIT |
Based on accumulated WAA for this season up to 1939-10-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.89 | Bucky Walters | 319 | CIN |
| +005+ | 9.82 | Bob Feller | 296.7 | CLE |
| +008+ | 8.58 | Paul Derringer | 301 | CIN |
| +011+ | 7.51 | Lefty Grove | 191 | BOS |
| +013+ | 7.11 | Red Ruffing | 233.3 | NYA |
| +016+ | 6.25 | Bob Bowman | 169.3 | SLN |
| +018+ | 6.23 | Hugh Casey | 227.3 | LAN |
| +020+ | 6.03 | Ted Lyons | 172.7 | CHA |
| +022+ | 5.95 | Claude Passeau | 274.3 | TOT |
| +025+ | 5.67 | Carl Hubbell | 154 | SFN |
| +026+ | 5.66 | Junior Thompson | 151.7 | CIN |
| +031+ | 4.96 | Marius Russo | 116 | NYA |
| +032+ | 4.9 | Bill Lee | 282.3 | CHN |
| +034+ | 4.63 | Bobo Newsom | 291.7 | TOT |
| +035+ | 4.61 | Mort Cooper | 210.7 | SLN |
| +036+ | 4.6 | Dutch Leonard | 269.3 | MIN |
| +038+ | 4.51 | Bump Hadley | 154 | NYA |
| +043+ | 4.16 | Steve Sundra | 120.7 | NYA |
| +044+ | 4.08 | Larry French | 194.3 | CHN |
| +045+ | 4.04 | Milt Shoffner | 170 | TOT |
| +046+ | 3.82 | Lefty Gomez | 198 | NYA |
| +047+ | 3.72 | Mace Brown | 196.7 | PIT |
| +048+ | 3.71 | Mel Harder | 208 | CLE |
| +049+ | 3.7 | Cliff Melton | 207.3 | SFN |
| +052+ | 3.52 | Tommy Bridges | 198 | DET |
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