| Starter | Tm | Tier | Game |
|---|---|---|---|
| David Cone | NYN | 7.96 | 198809250_NYN_SLN |
| Frank Viola | MIN | 6.02 | 198809250_MIN_ANA |
| Ted Higuera | MIL | 5.22 | 198809250_OAK_MIL |
| Dennis Martinez | WAS | 4.76 | 198809250_WAS_PHI |
| Mark Gubicza | KCA | 4.4 | 198809260_SEA_KCA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -6.84 | 198809270_ANA_MIL |
| Mike Campbell | SEA | -3.73 | 198809250_SEA_TEX |
| Mike Smithson | BOS | -3.38 | 198809270_TOR_BOS |
| 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 1988-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 8.09 | Orel Hershiser | 257 | LAN |
| +007+ | 7.75 | David Cone | 222.7 | NYN |
| +008+ | 6.84 | Frank Viola | 243 | MIN |
| +010+ | 6.83 | Teddy Higuera | 220.7 | MIL |
| +011+ | 6.74 | Mark Gubicza | 262.3 | KCA |
| +012+ | 6.71 | Danny Jackson | 256.3 | CIN |
| +013+ | 6.56 | John Tudor | 196.3 | TOT |
| +015+ | 6.44 | Allan Anderson | 203 | MIN |
| +022+ | 5.44 | Joe Magrane | 156.7 | SLN |
| +023+ | 5.43 | Roger Clemens | 256 | BOS |
| +029+ | 5.16 | Dennis Martinez | 236.3 | WAS |
| +031+ | 5.02 | Bob Walk | 213.3 | PIT |
| +032+ | 4.9 | Jose Rijo | 162 | CIN |
| +033+ | 4.9 | Pascual Perez | 181.3 | WAS |
| +038+ | 4.43 | Don Robinson | 168 | SFN |
| +041+ | 4.11 | Dwight Gooden | 243.7 | NYN |
| +045+ | 3.93 | Tim Leary | 223.3 | LAN |
| +046+ | 3.91 | Mike Scott | 211.3 | HOU |
| +054+ | 3.69 | Bobby Ojeda | 190.3 | NYN |
| +059+ | 3.4 | Jim Deshaies | 203 | HOU |
| +063+ | 3.24 | Rick Reuschel | 237 | SFN |
| +066+ | 3.2 | Ron Darling | 235.7 | NYN |
| +069+ | 3.14 | John Smiley | 201.3 | PIT |
| +071+ | 3.07 | Charlie Leibrandt | 235 | KCA |
| +074+ | 2.92 | Bryn Smith | 192.7 | WAS |
_