| Starter | Tm | Tier | Game |
|---|---|---|---|
| Paul Derringer | CIN | 4.59 | 193809070_PIT_CIN |
| Lou Fette | ATL | 4.52 | 193809052_LAN_ATL |
| Red Ruffing | NYA | 3.98 | 193809070_NYA_BOS |
| Bill Lee | CHN | 3.68 | 193809051_CHN_PIT |
| Thornton Lee | CHA | 2.79 | 193809051_CLE_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -1.99 | 193809052_DET_BAL |
| Buck Ross | OAK | -1.82 | 193809051_OAK_NYA |
| Slick Coffman | DET | -1.28 | 193809070_CLE_DET |
| Hugh Mulcahy | PHI | -1.14 | 193809070_LAN_PHI |
| Vito Tamulis | LAN | -0.36 | 193809060_LAN_PHI |
Based on accumulated WAA for this season up to 1938-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 7.19 | Bill Lee | 245.7 | CHN |
| +011+ | 6.94 | Lou Fette | 218 | ATL |
| +012+ | 6.88 | Paul Derringer | 265 | CIN |
| +016+ | 6.51 | Danny MacFayden | 184 | ATL |
| +022+ | 5.59 | Bill McGee | 191 | SLN |
| +024+ | 5.37 | Freddie Fitzsimmons | 167.7 | LAN |
| +027+ | 5.21 | Russ Bauers | 203.7 | PIT |
| +028+ | 5.1 | Red Ruffing | 218.3 | NYA |
| +029+ | 5.09 | Carl Hubbell | 179 | SFN |
| +030+ | 5.01 | Thornton Lee | 209.3 | CHA |
| +031+ | 4.99 | Clay Bryant | 219.3 | CHN |
| +037+ | 4.35 | Charlie Root | 128.3 | CHN |
| +040+ | 4.3 | Dutch Leonard | 195.3 | MIN |
| +042+ | 4.12 | Bob Klinger | 136.7 | PIT |
| +045+ | 3.62 | Jim Tobin | 200.3 | PIT |
| +046+ | 3.61 | Bob Weiland | 205 | SLN |
| +047+ | 3.55 | Ted Lyons | 161.7 | CHA |
| +049+ | 3.48 | Jim Turner | 223.3 | ATL |
| +051+ | 3.3 | Ira Hutchinson | 120 | ATL |
| +053+ | 3.25 | Dick Errickson | 98.3 | ATL |
| +054+ | 3.09 | Dizzy Dean | 60.7 | CHN |
| +055+ | 3.06 | Bill Swift | 123.7 | PIT |
| +057+ | 2.89 | Lon Warneke | 180.7 | SLN |
| +060+ | 2.77 | Johnny Rigney | 127 | CHA |
| +061+ | 2.72 | Larry French | 188 | CHN |
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