| Starter | Tm | Tier | Game |
|---|---|---|---|
| Paul Derringer | CIN | 7.01 | 193809250_CIN_PIT |
| Lou Fette | ATL | 3.63 | 193809242_SFN_ATL |
| Clay Bryant | CHN | 3.52 | 193809250_SLN_CHN |
| Russ Bauers | PIT | 2.64 | 193809240_CIN_PIT |
| Red Ruffing | NYA | 2.58 | 193809240_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -3.69 | 193809251_CHA_BAL |
| Ken Chase | MIN | -2.53 | 193809252_MIN_OAK |
| Tex Carleton | CHN | -1.56 | 193809232_CHN_PHI |
| Earl Whitehill | CLE | -1.02 | 193809232_CLE_DET |
| Bud Thomas | OAK | -0.88 | 193809252_MIN_OAK |
Based on accumulated WAA for this season up to 1938-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.46 | Bill Lee | 272.7 | CHN |
| +008+ | 8.17 | Paul Derringer | 298 | CIN |
| +016+ | 6.71 | Lou Fette | 238 | ATL |
| +017+ | 6.67 | Clay Bryant | 261.3 | CHN |
| +022+ | 6.04 | Russ Bauers | 233 | PIT |
| +023+ | 5.78 | Freddie Fitzsimmons | 193.7 | LAN |
| +025+ | 5.75 | Thornton Lee | 227.3 | CHA |
| +026+ | 5.61 | Danny MacFayden | 209.7 | ATL |
| +027+ | 5.59 | Johnny Vander Meer | 207.3 | CIN |
| +031+ | 5.07 | Red Ruffing | 244.3 | NYA |
| +035+ | 4.86 | Carl Hubbell | 179 | SFN |
| +036+ | 4.66 | Charlie Root | 150.7 | CHN |
| +041+ | 4.42 | Ira Hutchinson | 141.7 | ATL |
| +042+ | 4.37 | Bob Klinger | 152.3 | PIT |
| +043+ | 4.3 | Dutch Leonard | 218.3 | MIN |
| +045+ | 4.29 | Jim Tobin | 221.3 | PIT |
| +047+ | 4 | Lefty Gomez | 227 | NYA |
| +052+ | 3.57 | Dick Errickson | 122.3 | ATL |
| +054+ | 3.21 | Jim Turner | 247.3 | ATL |
| +055+ | 3.2 | Bill Lohrman | 143 | SFN |
| +056+ | 3.17 | Hal Schumacher | 185.3 | SFN |
| +058+ | 2.9 | Bob Weiland | 219.3 | SLN |
| +060+ | 2.8 | Tot Pressnell | 189 | LAN |
| +061+ | 2.79 | Jim Weaver | 127 | TOT |
| +065+ | 2.65 | Milt Shoffner | 134.3 | ATL |
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