| Starter | Tm | Tier | Game |
|---|---|---|---|
| David Cone | NYN | 7.96 | 198809250_NYN_SLN |
| Orel Hershiser | LAN | 7.07 | 198809230_LAN_SFN |
| Frank Viola | MIN | 6.02 | 198809250_MIN_ANA |
| Ted Higuera | MIL | 5.22 | 198809250_OAK_MIL |
| Danny Jackson | CIN | 4.82 | 198809240_CIN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rich Dotson | NYA | -4.27 | 198809240_BOS_NYA |
| Mike Campbell | SEA | -3.73 | 198809250_SEA_TEX |
| Charlie Lea | MIN | -1.62 | 198809230_MIN_ANA |
| Mark Williamson | BAL | -1.43 | 198809251_DET_BAL |
| Rich Yett | CLE | -1.43 | 198809250_TOR_CLE |
Based on accumulated WAA for this season up to 1988-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.08 | Orel Hershiser | 257 | LAN |
| +007+ | 7.74 | David Cone | 222.7 | NYN |
| +009+ | 6.85 | Frank Viola | 243 | MIN |
| +010+ | 6.83 | Teddy Higuera | 220.7 | MIL |
| +011+ | 6.69 | Danny Jackson | 256.3 | CIN |
| +012+ | 6.55 | John Tudor | 196.3 | TOT |
| +019+ | 5.95 | Mark Gubicza | 253.3 | KCA |
| +021+ | 5.62 | Allan Anderson | 193.7 | MIN |
| +023+ | 5.44 | Roger Clemens | 256 | BOS |
| +024+ | 5.43 | Joe Magrane | 156.7 | SLN |
| +029+ | 5.16 | Dennis Martinez | 236.3 | WAS |
| +030+ | 5.02 | Bob Walk | 213.3 | PIT |
| +032+ | 4.9 | Pascual Perez | 181.3 | WAS |
| +033+ | 4.89 | Jose Rijo | 162 | CIN |
| +034+ | 4.86 | Tim Leary | 219.7 | LAN |
| +039+ | 4.48 | Don Robinson | 161.3 | SFN |
| +041+ | 4.1 | Dwight Gooden | 243.7 | NYN |
| +045+ | 3.92 | Mike Scott | 211.3 | HOU |
| +052+ | 3.68 | Bobby Ojeda | 190.3 | NYN |
| +058+ | 3.48 | Rick Reuschel | 230 | SFN |
| +063+ | 3.22 | Jeff Robinson | 172 | DET |
| +064+ | 3.14 | Ron Darling | 227.7 | NYN |
| +068+ | 3.07 | Charlie Leibrandt | 235 | KCA |
| +072+ | 2.96 | Dave LaPoint | 210 | TOT |
| +071+ | 2.96 | John Smiley | 194.3 | PIT |
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