| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 7.02 | 193907080_PHI_ATL |
| Red Ruffing | NYA | 5.51 | 193907070_BOS_NYA |
| Lefty Grove | BOS | 5.15 | 193907091_BOS_NYA |
| Bob Feller | CLE | 4.27 | 193907070_CLE_CHA |
| Tommy Bridges | DET | 2.89 | 193907080_DET_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hugh Mulcahy | PHI | -4.58 | 193907092_PHI_ATL |
| Vern Kennedy | BAL | -2.98 | 193907081_CLE_BAL |
| Johnny Marcum | CHA | -2.81 | 193907070_CLE_CHA |
| Jake Wade | BOS | -1.3 | 193907070_BOS_NYA |
| Nels Potter | OAK | -1.17 | 193907091_MIN_OAK |
Based on accumulated WAA for this season up to 1939-07-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.15 | Bucky Walters | 151.3 | CIN |
| +002+ | 6.07 | Bob Feller | 149 | CLE |
| +003+ | 5.61 | Tommy Bridges | 118.7 | DET |
| +004+ | 5.43 | Lou Fette | 100 | ATL |
| +008+ | 4.58 | Red Ruffing | 117 | NYA |
| +010+ | 4.49 | Whit Wyatt | 91.3 | LAN |
| +016+ | 3.9 | Atley Donald | 87.7 | NYA |
| +020+ | 3.46 | Bump Hadley | 81.3 | NYA |
| +021+ | 3.35 | Lefty Grove | 102 | BOS |
| +023+ | 3.22 | Paul Derringer | 134.7 | CIN |
| +026+ | 3.11 | Mace Brown | 77.3 | PIT |
| +029+ | 2.85 | Bobo Newsom | 142.7 | TOT |
| +032+ | 2.74 | Curt Davis | 125.3 | SLN |
| +034+ | 2.65 | Lefty Gomez | 96 | NYA |
| +035+ | 2.59 | Bill Lohrman | 86 | SFN |
| +036+ | 2.55 | Whitey Moore | 98.7 | CIN |
| +038+ | 2.29 | Bob Klinger | 126.7 | PIT |
| +040+ | 2.27 | Lon Warneke | 104.3 | SLN |
| +043+ | 2.2 | Hugh Casey | 78 | LAN |
| +045+ | 2.16 | Claude Passeau | 127 | TOT |
| +046+ | 2.03 | Bill Posedel | 101.7 | ATL |
| +048+ | 1.92 | Ted Lyons | 91 | CHA |
| +050+ | 1.91 | Bill Swift | 51.3 | PIT |
| +052+ | 1.86 | Dutch Leonard | 121.3 | MIN |
| +051+ | 1.86 | Milt Shoffner | 89.3 | ATL |
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