| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 9.81 | 198808140_DET_BOS |
| Frank Viola | MIN | 7.51 | 198808150_MIN_DET |
| Dennis Martinez | WAS | 6.03 | 198808142_WAS_NYN |
| Mike Scott | HOU | 4.71 | 198808130_SDN_HOU |
| Ted Higuera | MIL | 4.06 | 198808150_BAL_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Ballard | BAL | -1.36 | 198808130_BAL_MIL |
| Mike Moore | SEA | -1.28 | 198808140_CHA_SEA |
| Brian Fisher | PIT | -1.16 | 198808140_PIT_PHI |
| Juan Nieves | MIL | -1.05 | 198808140_BAL_MIL |
| Ed Whitson | SDN | -1 | 198808130_SDN_HOU |
Based on accumulated WAA for this season up to 1988-08-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.69 | Frank Viola | 191 | MIN |
| +008+ | 5.75 | Dennis Martinez | 187.3 | WAS |
| +009+ | 5.46 | David Cone | 160.3 | NYN |
| +011+ | 5.31 | Tim Leary | 167 | LAN |
| +016+ | 4.97 | Teddy Higuera | 165.7 | MIL |
| +018+ | 4.84 | Roger Clemens | 207.7 | BOS |
| +019+ | 4.82 | Danny Jackson | 183 | CIN |
| +020+ | 4.82 | John Tudor | 145.3 | SLN |
| +021+ | 4.78 | Mike Scott | 164.7 | HOU |
| +022+ | 4.75 | Mark Gubicza | 184 | KCA |
| +029+ | 4.06 | Pascual Perez | 128.3 | WAS |
| +032+ | 3.93 | Jeff Robinson | 158.7 | DET |
| +034+ | 3.6 | Allan Anderson | 138 | MIN |
| +035+ | 3.59 | Jose Rijo | 142.3 | CIN |
| +040+ | 3.36 | Greg Maddux | 190.7 | CHN |
| +043+ | 3.22 | Bob Walk | 164.7 | PIT |
| +045+ | 3.05 | Joe Magrane | 100.7 | SLN |
| +047+ | 2.9 | Don August | 88.7 | MIL |
| +048+ | 2.89 | Orel Hershiser | 185 | LAN |
| +052+ | 2.81 | Charlie Hough | 187.3 | TEX |
| +054+ | 2.77 | Greg Swindell | 179.7 | CLE |
| +058+ | 2.61 | Greg Harris | 75 | PHI |
| +062+ | 2.51 | Don Robinson | 104.7 | SFN |
| +064+ | 2.43 | Eric Show | 171.7 | SDN |
| +068+ | 2.37 | Bobby Ojeda | 149 | NYN |
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