| Starter | Tm | Tier | Game |
|---|---|---|---|
| Paul Derringer | CIN | 7.48 | 193809301_PIT_CIN |
| Russ Bauers | PIT | 3.33 | 193809302_PIT_CIN |
| Thornton Lee | CHA | 2.14 | 193810021_BAL_CHA |
| Charlie Root | CHN | 1.87 | 193810012_CHN_SLN |
| Lefty Gomez | NYA | 1.55 | 193810020_NYA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -4.68 | 193810021_BAL_CHA |
| Ken Chase | MIN | -2.84 | 193810022_OAK_MIN |
| Tex Carleton | CHN | -2.26 | 193809300_CHN_SLN |
| Emerson Dickman | BOS | -0.6 | 193810020_NYA_BOS |
| John Whitehead | CHA | -0.47 | 193810011_BAL_CHA |
Based on accumulated WAA for this season up to 1938-10-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 10.24 | Bill Lee | 292 | CHN |
| +006+ | 8.73 | Paul Derringer | 307 | CIN |
| +017+ | 6.64 | Clay Bryant | 270 | CHN |
| +020+ | 6.24 | Danny MacFayden | 218.7 | ATL |
| +022+ | 5.96 | Russ Bauers | 243 | PIT |
| +023+ | 5.81 | Freddie Fitzsimmons | 202.7 | LAN |
| +025+ | 5.77 | Lou Fette | 239.7 | ATL |
| +027+ | 5.59 | Johnny Vander Meer | 225.3 | CIN |
| +031+ | 5.05 | Ira Hutchinson | 150.7 | ATL |
| +032+ | 4.97 | Red Ruffing | 247.3 | NYA |
| +034+ | 4.86 | Charlie Root | 160.7 | CHN |
| +040+ | 4.58 | Lefty Gomez | 239 | NYA |
| +043+ | 4.47 | Thornton Lee | 245.3 | CHA |
| +045+ | 4.38 | Jim Turner | 266.3 | ATL |
| +048+ | 4.2 | Bob Klinger | 159.3 | PIT |
| +051+ | 4.09 | Dizzy Dean | 74.7 | CHN |
| +050+ | 4.09 | Dutch Leonard | 223.3 | MIN |
| +052+ | 3.7 | Jim Tobin | 241.3 | PIT |
| +055+ | 3.22 | Bill Lohrman | 152 | SFN |
| +056+ | 3.14 | Hal Schumacher | 185.3 | SFN |
| +057+ | 3.1 | Joe Krakauskas | 121.3 | MIN |
| +058+ | 3.09 | Luke Hamlin | 236.7 | LAN |
| +062+ | 2.93 | Bob Weiland | 228.3 | SLN |
| +065+ | 2.76 | Johnny Rigney | 167 | CHA |
| +069+ | 2.57 | Ted Lyons | 194.7 | CHA |
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