| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 6.49 | 193907180_CIN_ATL |
| Bucky Walters | CIN | 4.11 | 193907170_CIN_ATL |
| Bob Feller | CLE | 3.52 | 193907170_NYA_CLE |
| Whit Wyatt | LAN | 2.11 | 193907170_CHN_LAN |
| Mace Brown | PIT | 1.73 | 193907190_PIT_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -5.04 | 193907181_NYA_BAL |
| Buck Ross | OAK | -4.45 | 193907180_OAK_CLE |
| Johnny Marcum | CHA | -3.37 | 193907182_BOS_CHA |
| Hugh Mulcahy | PHI | -2.95 | 193907190_SLN_PHI |
| Jake Wade | BOS | -1.03 | 193907191_BOS_CHA |
Based on accumulated WAA for this season up to 1939-07-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.08 | Bucky Walters | 169.3 | CIN |
| +004+ | 5.58 | Bob Feller | 160.3 | CLE |
| +007+ | 4.93 | Red Ruffing | 126 | NYA |
| +010+ | 4.81 | Atley Donald | 104.3 | NYA |
| +011+ | 4.68 | Lou Fette | 102.3 | ATL |
| +013+ | 4.42 | Bump Hadley | 90.3 | NYA |
| +014+ | 4.4 | Mace Brown | 99.3 | PIT |
| +015+ | 4.36 | Whit Wyatt | 109 | LAN |
| +017+ | 3.95 | Tommy Bridges | 122.7 | DET |
| +018+ | 3.93 | Lefty Grove | 111 | BOS |
| +026+ | 3.37 | Paul Derringer | 149.7 | CIN |
| +027+ | 3.2 | Lefty Gomez | 105 | NYA |
| +029+ | 3.15 | Danny MacFayden | 118.7 | ATL |
| +031+ | 3 | Claude Passeau | 143 | TOT |
| +032+ | 3 | Whitey Moore | 108.7 | CIN |
| +034+ | 2.84 | Bill Lohrman | 96.3 | SFN |
| +033+ | 2.84 | Curt Davis | 137.7 | SLN |
| +038+ | 2.73 | Hugh Casey | 85 | LAN |
| +039+ | 2.66 | Milt Shoffner | 107.3 | ATL |
| +040+ | 2.6 | Bob Klinger | 132.7 | PIT |
| +041+ | 2.56 | Bobo Newsom | 158.7 | TOT |
| +042+ | 2.55 | Mort Cooper | 92 | SLN |
| +043+ | 2.53 | Bill Posedel | 116.7 | ATL |
| +045+ | 2.45 | Ted Lyons | 100 | CHA |
| +046+ | 2.37 | Lon Warneke | 110.7 | SLN |
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