| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Plank | OAK | 5.16 | 191305050_OAK_NYA |
| Pete Alexander | PHI | 3.83 | 191305050_SFN_PHI |
| Rube Marquard | SFN | 3.19 | 191305050_SFN_PHI |
| Lew Richie | CHN | 1.24 | 191305040_SLN_CHN |
| Babe Adams | PIT | 0.97 | 191305040_PIT_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hub Perdue | ATL | -3.42 | 191305060_PIT_ATL |
| Bill Steele | SLN | -2.65 | 191305060_SLN_PHI |
| Ray Fisher | NYA | -1.52 | 191305050_OAK_NYA |
| Cliff Curtis | LAN | -0.56 | 191305050_ATL_LAN |
| Joe Engel | MIN | -0.34 | 191305050_MIN_BOS |
Based on accumulated WAA for this season up to 1913-05-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.83 | Walter Johnson | 44.7 | MIN |
| +002+ | 1.94 | Ray Keating | 36.3 | NYA |
| +003+ | 1.91 | Cy Falkenberg | 36 | CLE |
| +004+ | 1.81 | Jim Scott | 42 | CHA |
| +006+ | 1.71 | Vean Gregg | 48 | CLE |
| +011+ | 1.47 | Pete Alexander | 29 | PHI |
| +010+ | 1.47 | Nap Rucker | 51.3 | LAN |
| +012+ | 1.43 | Eddie Plank | 42.3 | OAK |
| +014+ | 1.34 | Eddie Cicotte | 35 | CHA |
| XXXXX | 1.18 | Jean Dubuc | 45 | DET |
| XXXXX | 1.15 | Christy Mathewson | 40.7 | SFN |
| XXXXX | 1.12 | Bill James | 42.3 | ATL |
| XXXXX | 1.1 | Larry Cheney | 59.7 | CHN |
| XXXXX | 0.99 | Ad Brennan | 28 | PHI |
| XXXXX | 0.97 | Cliff Curtis | 18 | LAN |
| XXXXX | 0.95 | Dwight Stone | 28.7 | BAL |
| XXXXX | 0.92 | Reb Russell | 35 | CHA |
| XXXXX | 0.87 | Joe Engel | 19 | MIN |
| XXXXX | 0.85 | Fred Blanding | 18 | CLE |
| XXXXX | 0.8 | Eddie Stack | 18.7 | LAN |
| XXXXX | 0.8 | George Baumgardner | 38.7 | BAL |
| XXXXX | 0.73 | Bill Steele | 26.3 | SLN |
| XXXXX | 0.71 | Frank Allen | 39.7 | LAN |
| XXXXX | 0.71 | Tom Seaton | 48.7 | PHI |
| XXXXX | 0.67 | Bob Harmon | 22.3 | SLN |
_