| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | 7.52 | 198808310_MIN_TEX |
| Tim Leary | LAN | 4.99 | 198809020_LAN_NYN |
| Mark Gubicza | KCA | 4.74 | 198809010_KCA_MIN |
| Mike Scott | HOU | 3.47 | 198809020_SLN_HOU |
| Joe Magrane | SLN | 2.55 | 198809020_SLN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -8.22 | 198808310_BAL_ANA |
| Bert Blyleven | MIN | -4.11 | 198809010_KCA_MIN |
| Tom Glavine | ATL | -3.26 | 198809020_PIT_ATL |
| Jay Tibbs | BAL | -2.99 | 198808310_BAL_ANA |
| Mike Smithson | BOS | -2.95 | 198808310_BOS_OAK |
Based on accumulated WAA for this season up to 1988-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.43 | Frank Viola | 214.7 | MIN |
| +006+ | 6.42 | David Cone | 184 | NYN |
| +007+ | 6.15 | Dennis Martinez | 212 | WAS |
| +008+ | 6.11 | Teddy Higuera | 190 | MIL |
| +010+ | 5.89 | Mark Gubicza | 219 | KCA |
| +013+ | 5.73 | Danny Jackson | 216.7 | CIN |
| +017+ | 5.17 | John Tudor | 167.3 | TOT |
| +019+ | 5.02 | Mike Scott | 185.7 | HOU |
| +020+ | 5.01 | Roger Clemens | 220 | BOS |
| +021+ | 4.96 | Joe Magrane | 133.3 | SLN |
| +022+ | 4.91 | Tim Leary | 194.3 | LAN |
| +031+ | 4.5 | Bob Walk | 185.3 | PIT |
| +033+ | 4.34 | Orel Hershiser | 212 | LAN |
| +035+ | 4.22 | Allan Anderson | 164.7 | MIN |
| +036+ | 4.19 | Pascual Perez | 147.3 | WAS |
| +043+ | 3.5 | Jose Rijo | 142.3 | CIN |
| +042+ | 3.5 | Jeff Robinson | 172 | DET |
| +044+ | 3.44 | Don Robinson | 125.7 | SFN |
| +046+ | 3.39 | Greg Maddux | 211 | CHN |
| +050+ | 3.28 | Rick Reuschel | 191 | SFN |
| +055+ | 3.07 | Dave LaPoint | 182.7 | TOT |
| +062+ | 2.93 | Bobby Ojeda | 168 | NYN |
| +061+ | 2.93 | Greg Harris | 93 | PHI |
| +065+ | 2.9 | Jim Deshaies | 171 | HOU |
| +068+ | 2.86 | Doug Drabek | 183.3 | PIT |
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