| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 6.02 | 193809171_CHN_SFN |
| Paul Derringer | CIN | 4.58 | 193809161_CIN_PHI |
| Danny MacFayden | ATL | 2.9 | 193809161_PIT_ATL |
| Red Ruffing | NYA | 2.87 | 193809181_NYA_BAL |
| Russ Bauers | PIT | 2.3 | 193809161_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lynn Nelson | OAK | -3.78 | 193809181_OAK_CLE |
| Bobo Newsom | BAL | -2.46 | 193809181_NYA_BAL |
| Ken Chase | MIN | -2.05 | 193809180_MIN_DET |
| Earl Whitehill | CLE | -1 | 193809170_BOS_CLE |
| Hugh Mulcahy | PHI | -0.64 | 193809162_CIN_PHI |
Based on accumulated WAA for this season up to 1938-09-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 8.72 | Bill Lee | 263.7 | CHN |
| +006+ | 7.99 | Paul Derringer | 282 | CIN |
| +017+ | 6.4 | Lou Fette | 229 | ATL |
| +018+ | 6.33 | Freddie Fitzsimmons | 185.7 | LAN |
| +023+ | 5.85 | Red Ruffing | 235.3 | NYA |
| +024+ | 5.56 | Johnny Vander Meer | 195.3 | CIN |
| +025+ | 5.54 | Russ Bauers | 224 | PIT |
| +026+ | 5.46 | Clay Bryant | 243.3 | CHN |
| +027+ | 5.35 | Thornton Lee | 218.3 | CHA |
| +028+ | 5.28 | Danny MacFayden | 196.3 | ATL |
| +029+ | 5.19 | Bill McGee | 203.7 | SLN |
| +032+ | 4.96 | Carl Hubbell | 179 | SFN |
| +034+ | 4.74 | Dutch Leonard | 213.3 | MIN |
| +036+ | 4.67 | Bob Klinger | 145.7 | PIT |
| +044+ | 4.18 | Charlie Root | 145 | CHN |
| +045+ | 4.04 | Ira Hutchinson | 132.7 | ATL |
| +047+ | 3.57 | Jim Tobin | 212.3 | PIT |
| +050+ | 3.43 | Jim Turner | 239.3 | ATL |
| +051+ | 3.4 | Lefty Gomez | 219 | NYA |
| +054+ | 3.17 | Al Benton | 85 | DET |
| +055+ | 3.03 | Johnny Rigney | 143 | CHA |
| +057+ | 3 | Lon Warneke | 187.7 | SLN |
| +058+ | 2.99 | Dick Errickson | 111.3 | ATL |
| +060+ | 2.94 | Ted Lyons | 177.7 | CHA |
| +062+ | 2.79 | Luke Hamlin | 217.7 | LAN |
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