| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | 9.21 | 198809100_MIN_CHA |
| David Cone | NYN | 5.9 | 198809100_NYN_WAS |
| Danny Jackson | CIN | 5.84 | 198809090_CIN_LAN |
| Dennis Martinez | WAS | 5.76 | 198809110_NYN_WAS |
| Ted Higuera | MIL | 5.55 | 198809100_SEA_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -7.79 | 198809100_ANA_TEX |
| Bert Blyleven | MIN | -6.24 | 198809110_MIN_CHA |
| Rich Dotson | NYA | -3.86 | 198809090_DET_NYA |
| Jim Clancy | TOR | -1.96 | 198809090_TOR_BAL |
| Mike Campbell | SEA | -1.38 | 198809110_SEA_MIL |
Based on accumulated WAA for this season up to 1988-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 7.89 | Frank Viola | 231.3 | MIN |
| +005+ | 7.18 | Teddy Higuera | 206 | MIL |
| +006+ | 7.12 | David Cone | 200 | NYN |
| +008+ | 7.02 | Danny Jackson | 234.7 | CIN |
| +010+ | 6.58 | Dennis Martinez | 228 | WAS |
| +014+ | 5.83 | Orel Hershiser | 230 | LAN |
| +015+ | 5.7 | John Tudor | 181.3 | TOT |
| +016+ | 5.69 | Joe Magrane | 142.3 | SLN |
| +018+ | 5.33 | Tim Leary | 202.3 | LAN |
| +019+ | 5.32 | Mark Gubicza | 235.7 | KCA |
| +023+ | 5.22 | Roger Clemens | 235.7 | BOS |
| +030+ | 4.8 | Allan Anderson | 172.7 | MIN |
| +032+ | 4.77 | Mike Scott | 193.7 | HOU |
| +036+ | 4.48 | Pascual Perez | 161.3 | WAS |
| +038+ | 4.18 | Bob Walk | 192.3 | PIT |
| +039+ | 4 | Don Robinson | 140.7 | SFN |
| +040+ | 3.98 | Jose Rijo | 148.3 | CIN |
| +046+ | 3.63 | Bobby Ojeda | 184 | NYN |
| +048+ | 3.51 | Dave LaPoint | 198.7 | TOT |
| +049+ | 3.43 | Dwight Gooden | 220.3 | NYN |
| +054+ | 3.29 | Jeff Robinson | 172 | DET |
| +060+ | 3.15 | Greg Swindell | 210.3 | CLE |
| +059+ | 3.15 | Rick Reuschel | 206 | SFN |
| +062+ | 3.04 | John Smiley | 181.7 | PIT |
| +065+ | 2.96 | Dave Stewart | 242.3 | OAK |
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