| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | 7 | 198808010_MIN_TOR |
| Dwight Gooden | NYN | 4.46 | 198808010_PIT_NYN |
| Orel Hershiser | LAN | 4.35 | 198807310_HOU_LAN |
| Mark Gubicza | KCA | 4 | 198808010_DET_KCA |
| Greg Maddux | CHN | 3.89 | 198807310_CHN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Trout | SEA | -4.06 | 198808020_ANA_SEA |
| Tom Glavine | ATL | -2.76 | 198808010_ATL_SDN |
| Jim Clancy | TOR | -2.63 | 198808020_MIN_TOR |
| Scott Bailes | CLE | -1.91 | 198808020_CLE_BAL |
| Ed Whitson | SDN | -1.25 | 198808010_ATL_SDN |
Based on accumulated WAA for this season up to 1988-08-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.22 | Roger Clemens | 193 | BOS |
| +004+ | 6.06 | Frank Viola | 167.7 | MIN |
| +009+ | 5.31 | Tim Leary | 152.7 | LAN |
| +010+ | 5.03 | Dennis Martinez | 164.7 | WAS |
| +015+ | 4.74 | Greg Maddux | 182.7 | CHN |
| +016+ | 4.67 | David Cone | 144.3 | NYN |
| +020+ | 4.51 | Teddy Higuera | 144.3 | MIL |
| +021+ | 4.51 | Orel Hershiser | 170 | LAN |
| +023+ | 4.44 | Mark Gubicza | 168.3 | KCA |
| +025+ | 4.09 | John Tudor | 130.3 | SLN |
| +026+ | 4.06 | Jeff Robinson | 144 | DET |
| +027+ | 3.97 | Pascual Perez | 108 | WAS |
| +029+ | 3.83 | Bob Walk | 146 | PIT |
| +030+ | 3.82 | Jose Rijo | 128 | CIN |
| +033+ | 3.59 | Danny Jackson | 159 | CIN |
| +038+ | 3.14 | Dwight Gooden | 172.3 | NYN |
| +039+ | 2.99 | Joe Magrane | 88.3 | SLN |
| +043+ | 2.83 | John Smiley | 139.3 | PIT |
| +044+ | 2.82 | Allan Anderson | 122.3 | MIN |
| +046+ | 2.7 | Mike Scott | 138.7 | HOU |
| +048+ | 2.68 | Charlie Hough | 172.3 | TEX |
| +058+ | 2.42 | Don Robinson | 85 | SFN |
| +059+ | 2.34 | Rick Reuschel | 146.3 | SFN |
| +062+ | 2.29 | Dave Stieb | 139.3 | TOR |
| +072+ | 2.09 | John Candelaria | 136 | NYA |
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