| Starter | Tm | Tier | Game |
|---|---|---|---|
| Danny Jackson | CIN | 6.75 | 198809140_HOU_CIN |
| Orel Hershiser | LAN | 4.7 | 198809140_ATL_LAN |
| Joe Magrane | SLN | 4.14 | 198809120_SLN_WAS |
| Allan Anderson | MIN | 3.13 | 198809120_MIN_SEA |
| Mike Scott | HOU | 3.13 | 198809130_HOU_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rich Dotson | NYA | -3.75 | 198809140_NYA_CLE |
| Mike Smithson | BOS | -3.17 | 198809130_BAL_BOS |
| Ted Power | DET | -2.38 | 198809130_DET_TOR |
| Tom Glavine | ATL | -1.75 | 198809120_ATL_LAN |
| Jim Clancy | TOR | -1.49 | 198809140_DET_TOR |
Based on accumulated WAA for this season up to 1988-09-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 7.85 | Frank Viola | 231.3 | MIN |
| +005+ | 7.13 | Teddy Higuera | 206 | MIL |
| +006+ | 7.07 | David Cone | 200 | NYN |
| +009+ | 6.55 | Orel Hershiser | 239 | LAN |
| +010+ | 6.49 | Dennis Martinez | 228 | WAS |
| +013+ | 6.12 | John Tudor | 186.3 | TOT |
| +014+ | 5.96 | Danny Jackson | 240 | CIN |
| +020+ | 5.26 | Mark Gubicza | 235.7 | KCA |
| +021+ | 5.15 | Roger Clemens | 235.7 | BOS |
| +026+ | 5.05 | Joe Magrane | 144.7 | SLN |
| +028+ | 4.97 | Pascual Perez | 170.3 | WAS |
| +030+ | 4.9 | Tim Leary | 207.7 | LAN |
| +032+ | 4.84 | Mike Scott | 199.7 | HOU |
| +033+ | 4.79 | Bob Walk | 200.3 | PIT |
| +036+ | 4.58 | Allan Anderson | 177.7 | MIN |
| +037+ | 4.55 | Jose Rijo | 155.3 | CIN |
| +040+ | 4.15 | Don Robinson | 147.7 | SFN |
| +044+ | 3.77 | Dwight Gooden | 227.3 | NYN |
| +047+ | 3.58 | Bobby Ojeda | 184 | NYN |
| +050+ | 3.49 | Rick Reuschel | 213 | SFN |
| +051+ | 3.46 | Dave LaPoint | 198.7 | TOT |
| +057+ | 3.27 | Jeff Robinson | 172 | DET |
| +068+ | 2.96 | John Smiley | 181.7 | PIT |
| +071+ | 2.89 | Jim Deshaies | 182 | HOU |
| +074+ | 2.8 | Greg Swindell | 219 | CLE |
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