| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 9.48 | 193809290_PIT_CHN |
| Paul Derringer | CIN | 7.48 | 193809301_PIT_CIN |
| Lou Fette | ATL | 4.13 | 193809292_ATL_LAN |
| Russ Bauers | PIT | 3.96 | 193809290_PIT_CHN |
| Red Ruffing | NYA | 2.11 | 193809292_NYA_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Walkup | BAL | -4.13 | 193810011_BAL_CHA |
| Tex Carleton | CHN | -2.26 | 193809300_CHN_SLN |
| Willis Hudlin | CLE | -0.5 | 193809290_CHA_CLE |
| John Whitehead | CHA | -0.47 | 193810011_BAL_CHA |
| Tommy Bridges | DET | -0.43 | 193809290_BAL_DET |
Based on accumulated WAA for this season up to 1938-10-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 10.28 | Bill Lee | 292 | CHN |
| +006+ | 8.79 | Paul Derringer | 307 | CIN |
| +017+ | 6.68 | Clay Bryant | 270 | CHN |
| +019+ | 6.26 | Danny MacFayden | 218.7 | ATL |
| +022+ | 5.99 | Russ Bauers | 243 | PIT |
| +023+ | 5.85 | Freddie Fitzsimmons | 202.7 | LAN |
| +024+ | 5.8 | Lou Fette | 239.7 | ATL |
| +025+ | 5.6 | Johnny Vander Meer | 216.3 | CIN |
| +031+ | 5.07 | Ira Hutchinson | 150.7 | ATL |
| +032+ | 5.02 | Red Ruffing | 247.3 | NYA |
| +034+ | 4.89 | Charlie Root | 160.7 | CHN |
| +044+ | 4.33 | Lefty Gomez | 236 | NYA |
| +046+ | 4.26 | Jim Turner | 258.3 | ATL |
| +047+ | 4.22 | Bob Klinger | 159.3 | PIT |
| +048+ | 4.2 | Thornton Lee | 236.3 | CHA |
| +050+ | 4.14 | Dutch Leonard | 223.3 | MIN |
| +051+ | 4.1 | Dizzy Dean | 74.7 | CHN |
| +052+ | 4 | Jim Tobin | 233.3 | PIT |
| +055+ | 3.25 | Bill Lohrman | 152 | SFN |
| +056+ | 3.18 | Hal Schumacher | 185.3 | SFN |
| +057+ | 3.14 | Luke Hamlin | 236.7 | LAN |
| +060+ | 2.97 | Bob Weiland | 228.3 | SLN |
| +065+ | 2.66 | Joe Krakauskas | 112.3 | MIN |
| +067+ | 2.57 | Ted Lyons | 194.7 | CHA |
| +069+ | 2.47 | Mel Harder | 240 | CLE |
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