| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.8 | 198807040_BOS_KCA |
| John Tudor | SLN | 7.59 | 198807040_SLN_LAN |
| Orel Hershiser | LAN | 6.96 | 198807050_SLN_LAN |
| Frank Viola | MIN | 6.18 | 198807060_BOS_MIN |
| Ron Darling | NYN | 4.43 | 198807060_CIN_NYN |
| 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 |
| Brian Fisher | PIT | -2.2 | 198807040_PIT_SDN |
| Mike Birkbeck | MIL | -1.58 | 198807050_MIL_KCA |
Based on accumulated WAA for this season up to 1988-07-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.55 | Greg Maddux | 146.7 | CHN |
| +003+ | 5.35 | Frank Viola | 141 | MIN |
| +005+ | 5.1 | Roger Clemens | 151.7 | BOS |
| +007+ | 4.57 | John Tudor | 99.3 | SLN |
| +010+ | 4.13 | Orel Hershiser | 135 | LAN |
| +016+ | 3.82 | Pascual Perez | 83.3 | WAS |
| +018+ | 3.54 | David Cone | 107.3 | NYN |
| +019+ | 3.49 | Teddy Higuera | 106.7 | MIL |
| +021+ | 3.37 | Mark Gubicza | 130.7 | KCA |
| +024+ | 3.33 | Ron Darling | 133.7 | NYN |
| +025+ | 3.32 | Bob Walk | 116 | PIT |
| +028+ | 3.22 | Bob Knepper | 101.7 | HOU |
| +030+ | 2.85 | Kevin Gross | 128.3 | PHI |
| +031+ | 2.79 | Dennis Martinez | 125 | WAS |
| +033+ | 2.75 | Dwight Gooden | 136.7 | NYN |
| +035+ | 2.6 | John Candelaria | 108.3 | NYA |
| +038+ | 2.55 | Larry McWilliams | 95.3 | SLN |
| +039+ | 2.52 | John Smiley | 111.7 | PIT |
| +042+ | 2.4 | Dave Stieb | 116.7 | TOR |
| +043+ | 2.4 | Doyle Alexander | 136.7 | DET |
| +044+ | 2.36 | Rick Reuschel | 115 | SFN |
| +051+ | 2.3 | Wes Gardner | 48.7 | BOS |
| +055+ | 2.23 | Dave LaPoint | 121.7 | CHA |
| +056+ | 2.2 | Tim Leary | 106 | LAN |
| +059+ | 2.1 | Jim Deshaies | 105.7 | HOU |
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