| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Courtney | MIN | -3.88 | 192010021_MIN_OAK |
| Carl Weilman | BAL | -1.6 | 192009290_CLE_BAL |
| Slim Harriss | OAK | -1.48 | 192009291_NYA_OAK |
| Ray Caldwell | CLE | -1.41 | 192010012_CLE_DET |
| Doc Ayers | DET | -0.73 | 192010012_CLE_DET |
Based on accumulated WAA for this season up to 1920-10-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 13.1 | Pete Alexander | 363.3 | CHN |
| +006+ | 8.09 | Burleigh Grimes | 303.7 | LAN |
| +010+ | 7.42 | Babe Adams | 261 | PIT |
| +011+ | 7.32 | Wilbur Cooper | 326 | PIT |
| +012+ | 7.31 | Stan Coveleski | 315 | CLE |
| +014+ | 6.4 | Hippo Vaughn | 301 | CHN |
| +015+ | 6 | Bob Shawkey | 268.7 | NYA |
| +022+ | 5.25 | Bill Doak | 270 | SLN |
| +024+ | 4.82 | Fred Toney | 278 | SFN |
| +026+ | 4.77 | Sherry Smith | 135.7 | LAN |
| +028+ | 4.69 | Jim Bagby | 339.7 | CLE |
| +030+ | 4.39 | Dolf Luque | 207.3 | CIN |
| +032+ | 4.35 | Leon Cadore | 253.3 | LAN |
| +035+ | 3.85 | Phil Douglas | 228.7 | SFN |
| +038+ | 3.54 | Elmer Ponder | 196 | PIT |
| +040+ | 3.5 | Red Faber | 319 | CHA |
| +042+ | 3.38 | Ray Fisher | 202.7 | CIN |
| +043+ | 3.3 | Lee Meadows | 243.7 | PHI |
| +045+ | 3.25 | Carl Mays | 312 | NYA |
| +052+ | 2.74 | Jesse Haines | 302.3 | SLN |
| +055+ | 2.59 | Eddie Rommel | 174 | OAK |
| +059+ | 2.45 | Buddy Napier | 49 | CIN |
| +061+ | 2.41 | Duster Mails | 63.3 | CLE |
| +063+ | 2.32 | Hod Eller | 210.3 | CIN |
| +066+ | 2.07 | Art Nehf | 280.3 | SFN |
_