| Starter | Tm | Tier | Game |
|---|---|---|---|
| Orel Hershiser | LAN | 6.96 | 198807050_SLN_LAN |
| Frank Viola | MIN | 6.18 | 198807060_BOS_MIN |
| Ron Darling | NYN | 4.43 | 198807060_CIN_NYN |
| Pascual Perez | WAS | 3.49 | 198807060_WAS_HOU |
| Doyle Alexander | DET | 2.74 | 198807060_SEA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -3.87 | 198807060_ANA_TOR |
| Tom Glavine | ATL | -3.18 | 198807050_PHI_ATL |
| Steve Trout | SEA | -2.71 | 198807050_SEA_DET |
| Oil Can Boyd | BOS | -1.79 | 198807070_BOS_MIN |
| Mike Birkbeck | MIL | -1.58 | 198807050_MIL_KCA |
Based on accumulated WAA for this season up to 1988-07-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.53 | Greg Maddux | 146.7 | CHN |
| +003+ | 5.33 | Frank Viola | 141 | MIN |
| +005+ | 5.08 | Roger Clemens | 151.7 | BOS |
| +007+ | 4.56 | John Tudor | 99.3 | SLN |
| +010+ | 4.11 | Orel Hershiser | 135 | LAN |
| +015+ | 3.81 | Pascual Perez | 83.3 | WAS |
| +018+ | 3.53 | David Cone | 107.3 | NYN |
| +019+ | 3.49 | Teddy Higuera | 106.7 | MIL |
| +024+ | 3.35 | Mark Gubicza | 130.7 | KCA |
| +025+ | 3.32 | Ron Darling | 133.7 | NYN |
| +026+ | 3.31 | Bob Walk | 116 | PIT |
| +027+ | 3.21 | Bob Knepper | 101.7 | HOU |
| +031+ | 3.07 | John Smiley | 118 | PIT |
| +032+ | 2.78 | Dennis Martinez | 125 | WAS |
| +033+ | 2.75 | Kevin Gross | 134.3 | PHI |
| +034+ | 2.74 | Dwight Gooden | 136.7 | NYN |
| +037+ | 2.59 | John Candelaria | 108.3 | NYA |
| +038+ | 2.54 | Larry McWilliams | 95.3 | SLN |
| +042+ | 2.39 | Dave Stieb | 116.7 | TOR |
| +043+ | 2.38 | Doyle Alexander | 136.7 | DET |
| +045+ | 2.35 | Rick Reuschel | 115 | SFN |
| +050+ | 2.29 | Wes Gardner | 48.7 | BOS |
| +051+ | 2.29 | Jeff Robinson | 110.3 | DET |
| +057+ | 2.22 | Dave LaPoint | 121.7 | CHA |
| +058+ | 2.19 | Tim Leary | 106 | LAN |
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