| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.37 | 191307210_MIN_CHA |
| Eddie Plank | OAK | 3.21 | 191307200_OAK_BAL |
| Eddie Cicotte | CHA | 3.02 | 191307191_OAK_CHA |
| Ad Brennan | PHI | 1.24 | 191307190_CIN_PHI |
| Rube Marquard | SFN | 1.21 | 191307190_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dan Griner | SLN | -4.61 | 191307190_SLN_SFN |
| Ed Willett | DET | -1.1 | 191307210_NYA_DET |
| Chief Johnson | CIN | -1.07 | 191307190_CIN_PHI |
| Earl Moseley | BOS | -0.72 | 191307210_BOS_CLE |
| Joe Engel | MIN | -0.66 | 191307190_MIN_BAL |
Based on accumulated WAA for this season up to 1913-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.79 | Walter Johnson | 208 | MIN |
| +002+ | 6.29 | Jim Scott | 180.7 | CHA |
| +003+ | 5.98 | Eddie Cicotte | 150.7 | CHA |
| +004+ | 5.88 | Reb Russell | 198 | CHA |
| +005+ | 5.39 | Ad Brennan | 137.7 | PHI |
| +011+ | 4.48 | Earl Hamilton | 183 | BAL |
| +012+ | 4.4 | Eddie Plank | 171.7 | OAK |
| +013+ | 3.95 | Christy Mathewson | 189.7 | SFN |
| +014+ | 3.88 | Cy Falkenberg | 176.3 | CLE |
| +016+ | 3.53 | Willie Mitchell | 154 | CLE |
| +018+ | 3.17 | Chief Bender | 146.7 | OAK |
| +019+ | 3.16 | Tom Seaton | 181 | PHI |
| +024+ | 2.88 | Babe Adams | 179 | PIT |
| +027+ | 2.75 | Vean Gregg | 172.3 | CLE |
| +028+ | 2.71 | Smoky Joe Wood | 144.3 | BOS |
| +029+ | 2.67 | Dutch Leonard | 129.3 | BOS |
| +032+ | 2.31 | Joe Boehling | 101.7 | MIN |
| +033+ | 2.27 | George Baumgardner | 147.3 | BAL |
| +042+ | 1.99 | Fred Blanding | 106.3 | CLE |
| +048+ | 1.75 | Rube Marquard | 155 | SFN |
| +054+ | 1.63 | Jeff Tesreau | 171.3 | SFN |
| +053+ | 1.63 | Bert Humphries | 95.3 | CHN |
| +058+ | 1.52 | Al Demaree | 106.3 | SFN |
| +061+ | 1.46 | Pete Alexander | 159.7 | PHI |
| +067+ | 1.26 | Frank Allen | 98.7 | LAN |
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