| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ramon Martinez | LAN | 7.84 | 199108050_LAN_CIN |
| Tom Glavine | ATL | 5.55 | 199108030_SDN_ATL |
| Scott Erickson | MIN | 5.42 | 199108040_MIN_OAK |
| Frank Viola | NYN | 3.84 | 199108030_CHN_NYN |
| Jose Rijo | CIN | 3.4 | 199108050_LAN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| John Smoltz | ATL | -3.22 | 199108050_SFN_ATL |
| Wade Taylor | NYA | -2.29 | 199108040_NYA_DET |
| Don August | MIL | -1.68 | 199108050_MIL_BAL |
| Jack Armstrong | CIN | -1.59 | 199108030_SFN_CIN |
| Dave Stewart | OAK | -1.48 | 199108040_MIN_OAK |
Based on accumulated WAA for this season up to 1991-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.91 | Dennis Martinez | 169.3 | WAS |
| +003+ | 6.58 | Tom Glavine | 163 | ATL |
| +005+ | 5.76 | Roger Clemens | 170 | BOS |
| +007+ | 5.51 | Scott Erickson | 149 | MIN |
| +009+ | 5.41 | Pete Harnisch | 151.7 | HOU |
| +010+ | 5.39 | Tom Candiotti | 159 | TOT |
| +011+ | 5.37 | Mike Morgan | 154.7 | LAN |
| +014+ | 4.92 | Ramon Martinez | 156.7 | LAN |
| +026+ | 3.93 | Jose DeLeon | 136 | SLN |
| +029+ | 3.75 | Bob Tewksbury | 120.3 | SLN |
| +033+ | 3.66 | Greg Swindell | 167.3 | CLE |
| +040+ | 3.47 | Kevin Tapani | 163.3 | MIN |
| +042+ | 3.4 | Tommy Greene | 137 | PHI |
| +043+ | 3.32 | Jimmy Key | 137 | TOR |
| +044+ | 3.3 | Randy Tomlin | 97.3 | PIT |
| +045+ | 3.29 | Bill Krueger | 113.7 | SEA |
| +046+ | 3.24 | Tim Belcher | 138.3 | LAN |
| +055+ | 2.88 | Frank Viola | 161 | NYN |
| +058+ | 2.76 | Bruce Hurst | 161.3 | SDN |
| +059+ | 2.75 | Jose Rijo | 120.7 | CIN |
| +062+ | 2.65 | Jim Abbott | 154.7 | ANA |
| +063+ | 2.63 | Jose Guzman | 95.3 | TEX |
| +068+ | 2.55 | Doug Drabek | 153 | PIT |
| +072+ | 2.38 | John Smiley | 133 | PIT |
| +077+ | 2.34 | Dave Wells | 142.3 | TOR |
_