| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | CHN | 10.88 | 192009131_CHN_LAN |
| Babe Adams | PIT | 3.37 | 192009130_PIT_ATL |
| Bob Shawkey | NYA | 2.86 | 192009140_NYA_DET |
| Stan Coveleski | CLE | 2.57 | 192009130_OAK_CLE |
| Bill Doak | SLN | 2.11 | 192009130_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Speed Martin | CHN | -3.77 | 192009132_CHN_LAN |
| Jim Shaw | MIN | -3.06 | 192009130_MIN_CHA |
| Carl Weilman | BAL | -1.32 | 192009150_BOS_BAL |
| Red Causey | PHI | -1.21 | 192009140_CIN_PHI |
| Benn Karr | BOS | -0.74 | 192009150_BOS_BAL |
Based on accumulated WAA for this season up to 1920-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 10.51 | Pete Alexander | 326 | CHN |
| +005+ | 8.77 | Burleigh Grimes | 282 | LAN |
| +007+ | 7 | Wilbur Cooper | 298.7 | PIT |
| +008+ | 6.82 | Babe Adams | 240 | PIT |
| +012+ | 6.31 | Dutch Ruether | 258.3 | CIN |
| +013+ | 6.28 | Bob Shawkey | 239.3 | NYA |
| +014+ | 6.25 | Stan Coveleski | 282.3 | CLE |
| +017+ | 5.9 | Hippo Vaughn | 274 | CHN |
| +022+ | 4.94 | Dolf Luque | 195.7 | CIN |
| +023+ | 4.61 | Jesse Barnes | 266 | SFN |
| +024+ | 4.59 | Bill Doak | 247.7 | SLN |
| +028+ | 4.22 | Sherry Smith | 121.3 | LAN |
| +030+ | 4.14 | Fred Toney | 252 | SFN |
| +034+ | 3.76 | Red Faber | 290 | CHA |
| +038+ | 3.45 | Leon Cadore | 235.3 | LAN |
| +041+ | 3.03 | Phil Douglas | 198 | SFN |
| +043+ | 2.86 | Jack Quinn | 238.7 | NYA |
| +044+ | 2.82 | Jim Bagby | 299.7 | CLE |
| +046+ | 2.73 | Elmer Ponder | 169 | PIT |
| +047+ | 2.73 | Lee Meadows | 219 | PHI |
| +054+ | 2.25 | Eddie Rommel | 152.7 | OAK |
| +055+ | 2.25 | Lefty Tyler | 171.3 | CHN |
| +056+ | 2.22 | Dana Fillingim | 238 | ATL |
| +060+ | 2.09 | Dave Keefe | 111.7 | OAK |
| +066+ | 1.89 | Dixie Davis | 236 | BAL |
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