| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 12.43 | 191306212_NYA_MIN |
| Nap Rucker | LAN | 3.72 | 191306210_LAN_SFN |
| Christy Mathewson | SFN | 3.62 | 191306190_SFN_CIN |
| Pete Alexander | PHI | 3.34 | 191306190_PHI_CHN |
| Smoky Joe Wood | BOS | 1.43 | 191306200_BOS_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Otto Hess | ATL | -3.6 | 191306190_ATL_PIT |
| Jimmy Lavender | CHN | -2.73 | 191306190_PHI_CHN |
| Roy Mitchell | BAL | -1.45 | 191306190_BAL_NYA |
| Boardwalk Brown | OAK | -1.27 | 191306190_CHA_OAK |
| Al Schulz | NYA | -1.05 | 191306202_NYA_MIN |
Based on accumulated WAA for this season up to 1913-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.01 | Walter Johnson | 148 | MIN |
| +003+ | 3.83 | Reb Russell | 129 | CHA |
| +004+ | 3.79 | Jim Scott | 105.7 | CHA |
| +005+ | 3.72 | Eddie Cicotte | 87.7 | CHA |
| +006+ | 3.64 | Tom Seaton | 130.7 | PHI |
| +010+ | 3.07 | Nap Rucker | 119 | LAN |
| +011+ | 3.05 | Eddie Plank | 116.3 | OAK |
| +012+ | 2.86 | Vean Gregg | 128.7 | CLE |
| +013+ | 2.85 | Pete Alexander | 116.3 | PHI |
| +015+ | 2.79 | Chief Bender | 95.7 | OAK |
| +019+ | 2.35 | Ad Brennan | 73 | PHI |
| +022+ | 2.15 | Cy Falkenberg | 118.7 | CLE |
| +023+ | 2.12 | Larry Cheney | 127 | CHN |
| +029+ | 1.65 | Bill Steen | 88 | CLE |
| +030+ | 1.6 | Ray Keating | 86.3 | NYA |
| +031+ | 1.57 | Christy Mathewson | 123.7 | SFN |
| +042+ | 1.34 | Babe Adams | 117 | PIT |
| XXXXX | 1.23 | Bill James | 81 | ATL |
| XXXXX | 1.21 | Dutch Leonard | 88 | BOS |
| XXXXX | 1.2 | Jeff Tesreau | 115 | SFN |
| XXXXX | 1.2 | Erskine Mayer | 50.3 | PHI |
| XXXXX | 1.13 | Frank Allen | 77.3 | LAN |
| XXXXX | 1.11 | Charlie Smith | 65.7 | CHN |
| XXXXX | 1.06 | Willie Mitchell | 85.7 | CLE |
| XXXXX | 1 | Wilbur Cooper | 38 | PIT |
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