| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 9.81 | 198808140_DET_BOS |
| Dennis Martinez | WAS | 6.03 | 198808142_WAS_NYN |
| David Cone | NYN | 4.84 | 198808120_WAS_NYN |
| Mike Scott | HOU | 4.71 | 198808130_SDN_HOU |
| Tim Leary | LAN | 4.68 | 198808120_SFN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | -5.41 | 198808120_ATL_CIN |
| Jim Clancy | TOR | -2.82 | 198808120_TOR_KCA |
| Rich Yett | CLE | -1.5 | 198808120_TEX_CLE |
| Jeff Ballard | BAL | -1.36 | 198808130_BAL_MIL |
| Mike Moore | SEA | -1.28 | 198808140_CHA_SEA |
Based on accumulated WAA for this season up to 1988-08-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.1 | Frank Viola | 182 | MIN |
| +008+ | 5.76 | Dennis Martinez | 187.3 | WAS |
| +009+ | 5.47 | David Cone | 160.3 | NYN |
| +010+ | 5.32 | Tim Leary | 167 | LAN |
| +015+ | 4.85 | Roger Clemens | 207.7 | BOS |
| +017+ | 4.83 | Danny Jackson | 183 | CIN |
| +018+ | 4.83 | John Tudor | 145.3 | SLN |
| +019+ | 4.79 | Mike Scott | 164.7 | HOU |
| +020+ | 4.76 | Mark Gubicza | 184 | KCA |
| +025+ | 4.26 | Teddy Higuera | 157.7 | MIL |
| +029+ | 4.06 | Pascual Perez | 128.3 | WAS |
| +031+ | 3.94 | Jeff Robinson | 158.7 | DET |
| +035+ | 3.61 | Allan Anderson | 138 | MIN |
| +036+ | 3.59 | Jose Rijo | 142.3 | CIN |
| +038+ | 3.51 | Bob Walk | 158.3 | PIT |
| +041+ | 3.37 | Greg Maddux | 190.7 | CHN |
| +044+ | 3.06 | Joe Magrane | 100.7 | SLN |
| +047+ | 2.91 | Don August | 88.7 | MIL |
| +048+ | 2.9 | Orel Hershiser | 185 | LAN |
| +052+ | 2.81 | Charlie Hough | 187.3 | TEX |
| +054+ | 2.78 | Greg Swindell | 179.7 | CLE |
| +058+ | 2.61 | Greg Harris | 75 | PHI |
| +063+ | 2.43 | Eric Show | 171.7 | SDN |
| +067+ | 2.37 | Bobby Ojeda | 149 | NYN |
| +068+ | 2.36 | Storm Davis | 151 | OAK |
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