| Starter | Tm | Tier | Game |
|---|---|---|---|
| Scott Erickson | MIN | 6.79 | 199107300_DET_MIN |
| Ramon Martinez | LAN | 6.58 | 199107300_NYN_LAN |
| Jose Rijo | CIN | 2.96 | 199107310_CHN_CIN |
| Bob Tewksbury | SLN | 2.88 | 199107310_SLN_HOU |
| Pete Harnisch | HOU | 2.7 | 199107300_SLN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | OAK | -3.29 | 199107300_OAK_NYA |
| Dave Johnson | BAL | -2.49 | 199107310_BAL_SEA |
| John Smoltz | ATL | -2.04 | 199107310_PIT_ATL |
| Don August | MIL | -1.87 | 199107300_KCA_MIL |
| Walt Terrell | DET | -1.87 | 199107310_ANA_DET |
Based on accumulated WAA for this season up to 1991-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.15 | Dennis Martinez | 162.3 | WAS |
| +003+ | 6.11 | Tom Glavine | 155.7 | ATL |
| +005+ | 5.91 | Ramon Martinez | 151.7 | LAN |
| +006+ | 5.78 | Tom Candiotti | 152 | TOT |
| +009+ | 5.3 | Scott Erickson | 142.3 | MIN |
| +013+ | 4.83 | Pete Harnisch | 144.7 | HOU |
| +015+ | 4.73 | Mike Morgan | 145.7 | LAN |
| +025+ | 3.79 | Frank Viola | 157 | NYN |
| +026+ | 3.75 | Bob Tewksbury | 120.3 | SLN |
| +033+ | 3.49 | Kevin Tapani | 154.7 | MIN |
| +035+ | 3.45 | Jose Rijo | 114.7 | CIN |
| +036+ | 3.41 | Jose DeLeon | 128 | SLN |
| +037+ | 3.29 | Randy Tomlin | 97.3 | PIT |
| +038+ | 3.28 | Jimmy Key | 137 | TOR |
| +043+ | 3.13 | David Cone | 147.7 | NYN |
| +045+ | 3.04 | Greg Swindell | 158.3 | CLE |
| +048+ | 2.93 | Bill Krueger | 107.3 | SEA |
| +052+ | 2.89 | Nolan Ryan | 122 | TEX |
| +056+ | 2.79 | Tommy Greene | 130 | PHI |
| +057+ | 2.79 | Jack McDowell | 166.3 | CHA |
| +058+ | 2.77 | Bruce Hurst | 154.3 | SDN |
| +059+ | 2.7 | Tim Belcher | 130.3 | LAN |
| +062+ | 2.62 | Dave Wells | 136.7 | TOR |
| +063+ | 2.58 | Jim Abbott | 146.7 | ANA |
| +072+ | 2.4 | Doug Drabek | 147 | PIT |
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