| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.96 | 191306250_OAK_MIN |
| Nap Rucker | LAN | 4.58 | 191306250_LAN_PHI |
| Jim Scott | CHA | 3.94 | 191306250_BAL_CHA |
| Christy Mathewson | SFN | 2.78 | 191306232_LAN_SFN |
| Smoky Joe Wood | BOS | 1.91 | 191306250_NYA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Lavender | CHN | -2.5 | 191306240_CHN_SLN |
| Roy Mitchell | BAL | -1.84 | 191306240_BAL_CHA |
| Dan Griner | SLN | -1.28 | 191306240_CHN_SLN |
| Ed Willett | DET | -1.27 | 191306241_CLE_DET |
| Hub Perdue | ATL | -1.25 | 191306252_ATL_SFN |
Based on accumulated WAA for this season up to 1913-06-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.45 | Walter Johnson | 151 | MIN |
| +002+ | 4.89 | Jim Scott | 123.7 | CHA |
| +003+ | 4.32 | Reb Russell | 141.7 | CHA |
| +004+ | 4.04 | Eddie Cicotte | 95 | CHA |
| +008+ | 3.42 | Tom Seaton | 138.7 | PHI |
| +011+ | 3.1 | Vean Gregg | 137.7 | CLE |
| +012+ | 3.09 | Chief Bender | 99.3 | OAK |
| +013+ | 3.08 | Eddie Plank | 116.3 | OAK |
| +014+ | 3.02 | Ad Brennan | 88 | PHI |
| +017+ | 2.52 | Nap Rucker | 119 | LAN |
| +023+ | 2.05 | Christy Mathewson | 132.7 | SFN |
| +025+ | 1.96 | Cy Falkenberg | 124.7 | CLE |
| +027+ | 1.89 | Jeff Tesreau | 124 | SFN |
| +033+ | 1.71 | Larry Cheney | 128 | CHN |
| +035+ | 1.64 | Ray Keating | 86.3 | NYA |
| +038+ | 1.52 | George Pierce | 61.7 | CHN |
| +046+ | 1.29 | Cliff Curtis | 73 | LAN |
| +048+ | 1.25 | Dutch Leonard | 88 | BOS |
| XXXXX | 1.18 | Babe Adams | 126 | PIT |
| XXXXX | 1.18 | Charlie Smith | 65.7 | CHN |
| XXXXX | 1.12 | Russ Ford | 93.7 | NYA |
| XXXXX | 0.93 | Eddie Stack | 56.3 | LAN |
| XXXXX | 0.86 | Earl Hamilton | 127 | BAL |
| XXXXX | 0.84 | Pat Ragan | 119 | LAN |
| XXXXX | 0.79 | George Baumgardner | 106.3 | BAL |
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