| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 6.49 | 193907180_CIN_ATL |
| Lefty Grove | BOS | 4.99 | 193907161_BOS_DET |
| Bucky Walters | CIN | 4.11 | 193907170_CIN_ATL |
| Bob Feller | CLE | 3.52 | 193907170_NYA_CLE |
| Lefty Gomez | NYA | 2.53 | 193907161_NYA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -5.04 | 193907181_NYA_BAL |
| Buck Ross | OAK | -4.45 | 193907180_OAK_CLE |
| Hugh Mulcahy | PHI | -3.89 | 193907161_PIT_PHI |
| Johnny Marcum | CHA | -3.37 | 193907182_BOS_CHA |
| Vance Page | CHN | -0.47 | 193907162_CHN_LAN |
Based on accumulated WAA for this season up to 1939-07-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.13 | Bucky Walters | 169.3 | CIN |
| +004+ | 5.6 | Bob Feller | 160.3 | CLE |
| +008+ | 4.95 | Red Ruffing | 126 | NYA |
| +009+ | 4.82 | Atley Donald | 104.3 | NYA |
| +011+ | 4.7 | Lou Fette | 102.3 | ATL |
| +013+ | 4.44 | Bump Hadley | 90.3 | NYA |
| +015+ | 4.37 | Whit Wyatt | 100 | LAN |
| +016+ | 3.97 | Tommy Bridges | 122.7 | DET |
| +018+ | 3.92 | Lefty Grove | 111 | BOS |
| +019+ | 3.9 | Mace Brown | 90.3 | PIT |
| +025+ | 3.41 | Paul Derringer | 149.7 | CIN |
| +027+ | 3.21 | Lefty Gomez | 105 | NYA |
| +028+ | 3.17 | Bill Lohrman | 93.3 | SFN |
| +029+ | 3.17 | Danny MacFayden | 118.7 | ATL |
| +032+ | 3.02 | Claude Passeau | 143 | TOT |
| +033+ | 2.87 | Curt Davis | 137.7 | SLN |
| +034+ | 2.83 | Whitey Moore | 106.7 | CIN |
| +036+ | 2.75 | Hugh Casey | 85 | LAN |
| +039+ | 2.62 | Bob Klinger | 132.7 | PIT |
| +040+ | 2.58 | Bobo Newsom | 158.7 | TOT |
| +041+ | 2.56 | Mort Cooper | 92 | SLN |
| +042+ | 2.55 | Bill Posedel | 116.7 | ATL |
| +045+ | 2.47 | Ted Lyons | 100 | CHA |
| +047+ | 2.39 | Lon Warneke | 110.7 | SLN |
| +049+ | 2.2 | Milt Shoffner | 98.3 | ATL |
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