| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 7.05 | 193809221_CHN_PHI |
| Paul Derringer | CIN | 6.3 | 193809222_CIN_SFN |
| Freddie Fitzsimmons | LAN | 3.74 | 193809221_PIT_LAN |
| Lou Fette | ATL | 3.63 | 193809242_SFN_ATL |
| Russ Bauers | PIT | 2.64 | 193809240_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tex Carleton | CHN | -1.56 | 193809232_CHN_PHI |
| Earl Whitehill | CLE | -1.02 | 193809232_CLE_DET |
| Lefty Mills | BAL | -0.8 | 193809241_CHA_BAL |
| Steve Sundra | NYA | -0.63 | 193809220_NYA_CHA |
| Claude Passeau | PHI | -0.51 | 193809222_CHN_PHI |
Based on accumulated WAA for this season up to 1938-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.53 | Bill Lee | 272.7 | CHN |
| +006+ | 8.28 | Paul Derringer | 290 | CIN |
| +016+ | 6.8 | Lou Fette | 238 | ATL |
| +019+ | 6.28 | Clay Bryant | 252.3 | CHN |
| +020+ | 6.1 | Russ Bauers | 233 | PIT |
| +023+ | 5.8 | Freddie Fitzsimmons | 193.7 | LAN |
| +024+ | 5.78 | Thornton Lee | 227.3 | CHA |
| +026+ | 5.63 | Johnny Vander Meer | 207.3 | CIN |
| +028+ | 5.31 | Bill McGee | 207 | SLN |
| +029+ | 5.26 | Red Ruffing | 244.3 | NYA |
| +034+ | 4.91 | Carl Hubbell | 179 | SFN |
| +035+ | 4.83 | Danny MacFayden | 198.7 | ATL |
| +036+ | 4.7 | Charlie Root | 150.7 | CHN |
| +041+ | 4.47 | Ira Hutchinson | 141.7 | ATL |
| +042+ | 4.4 | Bob Klinger | 152.3 | PIT |
| +043+ | 4.34 | Jim Tobin | 221.3 | PIT |
| +044+ | 4.33 | Dutch Leonard | 218.3 | MIN |
| +047+ | 4.17 | Lefty Gomez | 227 | NYA |
| +051+ | 3.62 | Dick Errickson | 122.3 | ATL |
| +053+ | 3.31 | Jim Turner | 247.3 | ATL |
| +054+ | 3.23 | Hal Schumacher | 185.3 | SFN |
| +058+ | 2.81 | Jim Weaver | 127 | TOT |
| +061+ | 2.63 | Bill Lohrman | 132.7 | SFN |
| +062+ | 2.61 | Lon Warneke | 192.3 | SLN |
| +064+ | 2.6 | Al Benton | 89.7 | DET |
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