| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 9.97 | 193909020_CHN_CIN |
| Red Ruffing | NYA | 6.82 | 193909020_NYA_BOS |
| Bob Feller | CLE | 4.77 | 193909040_CHA_CLE |
| Curt Davis | SLN | 2.2 | 193909031_PIT_SLN |
| Carl Hubbell | SFN | 2.05 | 193909030_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -6.05 | 193909030_BAL_CLE |
| Buck Ross | OAK | -5.09 | 193909041_NYA_OAK |
| Joe Haynes | MIN | -1.8 | 193909041_MIN_BOS |
| Hugh Mulcahy | PHI | -0.89 | 193909032_ATL_PHI |
| Al Hollingsworth | LAN | -0.83 | 193909042_ATL_LAN |
Based on accumulated WAA for this season up to 1939-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 10.84 | Bucky Walters | 250 | CIN |
| +005+ | 7.93 | Bob Feller | 243 | CLE |
| +006+ | 7.76 | Red Ruffing | 212 | NYA |
| +011+ | 6.41 | Paul Derringer | 237 | CIN |
| +015+ | 5.71 | Lefty Grove | 158 | BOS |
| +019+ | 5.3 | Hugh Casey | 168 | LAN |
| +020+ | 5.19 | Claude Passeau | 221.7 | TOT |
| +022+ | 4.87 | Carl Hubbell | 117 | SFN |
| +025+ | 4.61 | Mace Brown | 164.3 | PIT |
| +027+ | 4.45 | Ted Lyons | 138.7 | CHA |
| +032+ | 4.11 | Bob Bowman | 137 | SLN |
| +033+ | 4.09 | Curt Davis | 209 | SLN |
| +035+ | 4.07 | Marius Russo | 89 | NYA |
| +037+ | 3.88 | Bill Posedel | 193.3 | ATL |
| +038+ | 3.87 | Bump Hadley | 129 | NYA |
| +039+ | 3.82 | Milt Shoffner | 150 | TOT |
| +040+ | 3.73 | Dutch Leonard | 217.3 | MIN |
| +043+ | 3.42 | Steve Sundra | 86.7 | NYA |
| +047+ | 3.18 | Bill Lohrman | 160.7 | SFN |
| +052+ | 3.02 | Larry French | 147.3 | CHN |
| +053+ | 2.95 | Cliff Melton | 164.7 | SFN |
| +054+ | 2.95 | Mort Cooper | 161.3 | SLN |
| +055+ | 2.93 | Johnny Rigney | 180 | CHA |
| +056+ | 2.82 | Bobo Newsom | 247.3 | TOT |
| +057+ | 2.75 | Dizzy Dean | 93.7 | CHN |
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