| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mark Gubicza | KCA | 4.88 | 198808110_BAL_KCA |
| David Cone | NYN | 4.84 | 198808120_WAS_NYN |
| Mike Scott | HOU | 4.71 | 198808130_SDN_HOU |
| Tim Leary | LAN | 4.68 | 198808120_SFN_LAN |
| Danny Jackson | CIN | 4.05 | 198808130_ATL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | -5.41 | 198808120_ATL_CIN |
| Jim Clancy | TOR | -2.82 | 198808120_TOR_KCA |
| Bill Swift | SEA | -1.65 | 198808110_CHA_SEA |
| Rich Yett | CLE | -1.5 | 198808120_TEX_CLE |
| Jeff Ballard | BAL | -1.36 | 198808130_BAL_MIL |
Based on accumulated WAA for this season up to 1988-08-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.35 | Roger Clemens | 206.3 | BOS |
| +003+ | 6.05 | Frank Viola | 182 | MIN |
| +008+ | 5.67 | Dennis Martinez | 182.3 | WAS |
| +010+ | 5.42 | David Cone | 160.3 | NYN |
| +012+ | 5.27 | Tim Leary | 167 | LAN |
| +018+ | 4.78 | Danny Jackson | 183 | CIN |
| +019+ | 4.77 | John Tudor | 145.3 | SLN |
| +020+ | 4.74 | Mike Scott | 164.7 | HOU |
| +021+ | 4.71 | Mark Gubicza | 184 | KCA |
| +026+ | 4.22 | Teddy Higuera | 157.7 | MIL |
| +030+ | 4.01 | Pascual Perez | 128.3 | WAS |
| +031+ | 3.9 | Jeff Robinson | 158.7 | DET |
| +032+ | 3.72 | Orel Hershiser | 183 | LAN |
| +035+ | 3.57 | Allan Anderson | 138 | MIN |
| +037+ | 3.46 | Bob Walk | 158.3 | PIT |
| +038+ | 3.38 | Jose Rijo | 140.3 | CIN |
| +041+ | 3.32 | Greg Maddux | 190.7 | CHN |
| +045+ | 3.02 | Joe Magrane | 100.7 | SLN |
| +048+ | 2.88 | Don August | 88.7 | MIL |
| +053+ | 2.73 | Charlie Hough | 187.3 | TEX |
| +054+ | 2.6 | Dave Stewart | 203 | OAK |
| +055+ | 2.59 | Greg Harris | 75 | PHI |
| +066+ | 2.33 | Bobby Ojeda | 149 | NYN |
| +068+ | 2.31 | Storm Davis | 151 | OAK |
| +080+ | 2.19 | Dwight Gooden | 183.3 | NYN |
_