| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Walsh | CHA | 6.18 | 191206150_BOS_CHA |
| Rube Marquard | SFN | 4.72 | 191206170_PIT_SFN |
| Slim Sallee | SLN | 2.1 | 191206150_SLN_LAN |
| Eddie Plank | OAK | 1.9 | 191206160_OAK_DET |
| Smoky Joe Wood | BOS | 1.82 | 191206160_BOS_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Earl Hamilton | BAL | -3.88 | 191206150_NYA_BAL |
| Carl Cashion | MIN | -2.06 | 191206150_MIN_CLE |
| Bob Harmon | SLN | -1.68 | 191206170_SLN_LAN |
| Willie Mitchell | CLE | -1.13 | 191206150_MIN_CLE |
| Cy Barger | LAN | -0.87 | 191206150_SLN_LAN |
Based on accumulated WAA for this season up to 1912-06-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.02 | Walter Johnson | 143 | MIN |
| +002+ | 7.28 | Rube Marquard | 122 | SFN |
| +003+ | 5.23 | Slim Sallee | 113 | SLN |
| +004+ | 4.17 | Ed Walsh | 149.7 | CHA |
| +005+ | 4.16 | Christy Mathewson | 98.7 | SFN |
| +006+ | 4.13 | Larry Cheney | 122.3 | CHN |
| +007+ | 3.87 | Marty O'Toole | 107 | PIT |
| +011+ | 3.45 | Rube Benton | 110 | CIN |
| +012+ | 3.12 | Hooks Wiltse | 51.3 | SFN |
| +013+ | 3.08 | George Suggs | 97.7 | CIN |
| +015+ | 3.01 | Claude Hendrix | 104.7 | PIT |
| +016+ | 2.96 | Red Ames | 67 | SFN |
| +017+ | 2.9 | Hub Perdue | 101.3 | ATL |
| +018+ | 2.86 | Ad Brennan | 84.3 | PHI |
| +020+ | 2.41 | Lew Richie | 63.7 | CHN |
| +022+ | 2.33 | Charley Hall | 87 | BOS |
| +023+ | 2.13 | Walt Dickson | 56.3 | ATL |
| +025+ | 2.02 | Nap Rucker | 88 | LAN |
| +027+ | 1.95 | Cliff Curtis | 38 | PHI |
| +028+ | 1.86 | Joe Benz | 85.7 | CHA |
| +035+ | 1.67 | Tom Seaton | 95.3 | PHI |
| +036+ | 1.66 | Jean Dubuc | 96.3 | DET |
| +038+ | 1.61 | Jack Coombs | 85 | OAK |
| +040+ | 1.57 | Jack Powell | 81 | BAL |
| +042+ | 1.53 | Smoky Joe Wood | 140.3 | BOS |
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