| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dennis Martinez | WAS | 9.57 | 199107170_SDN_WAS |
| Roger Clemens | BOS | 8.81 | 199107170_BOS_CHA |
| Tom Candiotti | TOR | 6.81 | 199107160_TOR_KCA |
| Doug Drabek | PIT | 4.83 | 199107170_HOU_PIT |
| Frank Viola | NYN | 4.14 | 199107170_SFN_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eric Show | OAK | -2.78 | 199107180_NYA_OAK |
| Jeff Robinson | BAL | -2.58 | 199107160_BAL_ANA |
| Jack Armstrong | CIN | -1.19 | 199107170_SLN_CIN |
| John Smoltz | ATL | -0.94 | 199107170_CHN_ATL |
| Mark Gubicza | KCA | -0.83 | 199107170_BAL_KCA |
Based on accumulated WAA for this season up to 1991-07-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.23 | Tom Glavine | 136 | ATL |
| +002+ | 6.13 | Tom Candiotti | 138.7 | TOT |
| +003+ | 5.66 | Dennis Martinez | 145.3 | WAS |
| +004+ | 5.57 | Roger Clemens | 147 | BOS |
| +006+ | 5.21 | Scott Erickson | 126.7 | MIN |
| +010+ | 4.66 | Pete Harnisch | 123.7 | HOU |
| +012+ | 4.35 | Ramon Martinez | 126.7 | LAN |
| +013+ | 4.33 | Mike Morgan | 131 | LAN |
| +015+ | 4.05 | Greg Swindell | 150 | CLE |
| +019+ | 3.68 | Jimmy Key | 117.3 | TOR |
| +027+ | 3.29 | Frank Viola | 145 | NYN |
| +032+ | 3.14 | Dave Wells | 125.3 | TOR |
| +041+ | 2.78 | Doug Drabek | 135 | PIT |
| +042+ | 2.72 | Todd Stottlemyre | 123 | TOR |
| +043+ | 2.7 | Nolan Ryan | 109.7 | TEX |
| +044+ | 2.7 | Tommy Greene | 117 | PHI |
| +045+ | 2.68 | Dennis Rasmussen | 71.3 | SDN |
| +046+ | 2.65 | Zane Smith | 124.3 | PIT |
| +050+ | 2.64 | Bob Tewksbury | 100.3 | SLN |
| +054+ | 2.57 | David Cone | 134.7 | NYN |
| +056+ | 2.49 | Tim Belcher | 115.3 | LAN |
| +061+ | 2.38 | Jack McDowell | 141.3 | CHA |
| +062+ | 2.35 | Randy Tomlin | 77 | PIT |
| +066+ | 2.28 | Kevin Tapani | 133.7 | MIN |
| +081+ | 2.03 | Jose DeLeon | 112 | SLN |
_