| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nap Rucker | LAN | 4.99 | 191306120_LAN_CHN |
| Pete Alexander | PHI | 4.47 | 191306120_PHI_SLN |
| Eddie Plank | OAK | 4.11 | 191306120_CLE_OAK |
| Vean Gregg | CLE | 2.61 | 191306110_CLE_BOS |
| Smoky Joe Wood | BOS | 2.1 | 191306110_CLE_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Steele | SLN | -3.05 | 191306120_PHI_SLN |
| Hub Perdue | ATL | -2.26 | 191306130_ATL_CIN |
| Tom Hughes | MIN | -1.24 | 191306130_CHA_MIN |
| Al Schulz | NYA | -1.15 | 191306120_DET_NYA |
| Walt Leverenz | BAL | -0.85 | 191306110_BAL_OAK |
Based on accumulated WAA for this season up to 1913-06-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.44 | Walter Johnson | 121 | MIN |
| +003+ | 3.96 | Jim Scott | 97.7 | CHA |
| +004+ | 3.93 | Cy Falkenberg | 107 | CLE |
| +006+ | 3.3 | Chief Bender | 91.7 | OAK |
| +008+ | 3.11 | Reb Russell | 112 | CHA |
| +010+ | 3 | Eddie Cicotte | 78.7 | CHA |
| +011+ | 2.97 | Pete Alexander | 102.3 | PHI |
| +012+ | 2.89 | Tom Seaton | 116.7 | PHI |
| +014+ | 2.6 | Eddie Plank | 99.3 | OAK |
| +016+ | 2.57 | Ad Brennan | 68.7 | PHI |
| +017+ | 2.54 | Nap Rucker | 101 | LAN |
| +020+ | 2.32 | Christy Mathewson | 105.7 | SFN |
| +022+ | 2.25 | Ray Keating | 78.7 | NYA |
| +025+ | 2.01 | Larry Cheney | 109 | CHN |
| +028+ | 1.68 | Doc White | 57.7 | CHA |
| +029+ | 1.59 | Jeff Tesreau | 107.3 | SFN |
| +031+ | 1.55 | Bill Steen | 88 | CLE |
| +034+ | 1.45 | Vean Gregg | 110.7 | CLE |
| +037+ | 1.4 | Frank Allen | 76 | LAN |
| +038+ | 1.38 | Cliff Curtis | 55 | LAN |
| +041+ | 1.33 | Eddie Stack | 54.3 | LAN |
| XXXXX | 1.23 | Babe Adams | 108 | PIT |
| XXXXX | 1.2 | Erskine Mayer | 39.3 | PHI |
| XXXXX | 1.18 | Dutch Leonard | 82 | BOS |
| XXXXX | 1.11 | Dick Rudolph | 59.3 | ATL |
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