| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Steele | SLN | -4.03 | 191305302_CIN_SLN |
| Otto Hess | ATL | -3.5 | 191305312_LAN_ATL |
| Chief Johnson | CIN | -2.45 | 191305311_CIN_SLN |
| Ray Fisher | NYA | -1.24 | 191305302_NYA_OAK |
| Walt Leverenz | BAL | -1.11 | 191305310_BAL_CLE |
Based on accumulated WAA for this season up to 1913-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.12 | Walter Johnson | 94 | MIN |
| +003+ | 3.3 | Cy Falkenberg | 88 | CLE |
| +005+ | 2.77 | Nap Rucker | 81.7 | LAN |
| +006+ | 2.66 | Eddie Plank | 72.3 | OAK |
| +008+ | 2.49 | Eddie Cicotte | 59 | CHA |
| +013+ | 2.01 | Christy Mathewson | 89.7 | SFN |
| +014+ | 1.94 | Reb Russell | 87 | CHA |
| +018+ | 1.83 | Pete Alexander | 74.3 | PHI |
| +019+ | 1.81 | Bill Steen | 75.3 | CLE |
| +020+ | 1.8 | Cliff Curtis | 51.7 | LAN |
| +022+ | 1.72 | Ray Keating | 61.7 | NYA |
| +023+ | 1.63 | Babe Adams | 84 | PIT |
| +024+ | 1.57 | Ad Brennan | 50.7 | PHI |
| +030+ | 1.36 | Doc White | 49 | CHA |
| +033+ | 1.32 | Bob Harmon | 67 | SLN |
| +036+ | 1.3 | Dick Rudolph | 33.3 | ATL |
| +035+ | 1.3 | Jeff Tesreau | 85 | SFN |
| +037+ | 1.3 | Vean Gregg | 86.3 | CLE |
| +038+ | 1.28 | Bill James | 65.7 | ATL |
| XXXXX | 1.2 | Tom Seaton | 90.7 | PHI |
| XXXXX | 1.19 | Eddie Stack | 42.7 | LAN |
| XXXXX | 1.17 | Chief Bender | 63.3 | OAK |
| XXXXX | 0.99 | Pat Ragan | 83.3 | LAN |
| XXXXX | 0.96 | Carl Zamloch | 43.7 | DET |
| XXXXX | 0.96 | Frank Allen | 67.3 | LAN |
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