| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.08 | 198807250_BOS_TEX |
| Ted Higuera | MIL | 5.92 | 198807250_MIL_NYA |
| Pascual Perez | WAS | 4.73 | 198807240_WAS_CIN |
| Orel Hershiser | LAN | 4.43 | 198807261_LAN_SFN |
| Greg Maddux | CHN | 3.83 | 198807260_CHN_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -4.97 | 198807240_CLE_ANA |
| Jim Clancy | TOR | -2.4 | 198807260_TOR_MIN |
| Oil Can Boyd | BOS | -1.84 | 198807260_BOS_TEX |
| Mike Moore | SEA | -1.73 | 198807250_SEA_CHA |
| Rick Mahler | ATL | -1.45 | 198807262_CIN_ATL |
Based on accumulated WAA for this season up to 1988-07-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.89 | Roger Clemens | 184 | BOS |
| +003+ | 6.06 | Frank Viola | 154 | MIN |
| +005+ | 5.44 | Greg Maddux | 176.7 | CHN |
| +008+ | 4.73 | Pascual Perez | 104.3 | WAS |
| +017+ | 4.37 | Mark Gubicza | 153.3 | KCA |
| +016+ | 4.37 | Teddy Higuera | 136 | MIL |
| +018+ | 4.29 | Dennis Martinez | 155.7 | WAS |
| +022+ | 4.12 | David Cone | 135.3 | NYN |
| +024+ | 3.97 | Tim Leary | 134.7 | LAN |
| +026+ | 3.96 | Orel Hershiser | 161 | LAN |
| +027+ | 3.74 | Bob Walk | 140 | PIT |
| +030+ | 3.6 | John Tudor | 122 | SLN |
| +032+ | 3.45 | Jose Rijo | 114.3 | CIN |
| +034+ | 3.14 | Dwight Gooden | 157.7 | NYN |
| +035+ | 3.07 | Danny Jackson | 143.7 | CIN |
| +036+ | 2.9 | Rick Reuschel | 135.3 | SFN |
| +043+ | 2.7 | Jeff Robinson | 126.3 | DET |
| +045+ | 2.59 | Allan Anderson | 115.3 | MIN |
| +050+ | 2.46 | Charlie Hough | 165.3 | TEX |
| +052+ | 2.34 | John Smiley | 131.3 | PIT |
| +058+ | 2.28 | Bob Knepper | 122 | HOU |
| +057+ | 2.28 | Jimmy Key | 58.7 | TOR |
| +059+ | 2.25 | Joe Magrane | 72.3 | SLN |
| +060+ | 2.24 | Kevin Gross | 154.7 | PHI |
| +061+ | 2.23 | Larry McWilliams | 101.3 | SLN |
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