| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.21 | 198806290_CLE_BOS |
| John Tudor | SLN | 8.38 | 198806280_WAS_SLN |
| Orel Hershiser | LAN | 5.45 | 198806290_LAN_HOU |
| Dwight Gooden | NYN | 4.53 | 198806270_NYN_PIT |
| Bob Walk | PIT | 3.43 | 198806290_NYN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.48 | 198806280_SDN_CIN |
| Pete Smith | ATL | -2.35 | 198806290_SFN_ATL |
| Steve Trout | SEA | -2.32 | 198806280_TEX_SEA |
| Brian Fisher | PIT | -2.12 | 198806280_NYN_PIT |
| Scott Bailes | CLE | -1.42 | 198806280_CLE_BOS |
Based on accumulated WAA for this season up to 1988-06-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.1 | Greg Maddux | 137.7 | CHN |
| +004+ | 4.85 | John Tudor | 91.3 | SLN |
| +005+ | 4.69 | Roger Clemens | 143.7 | BOS |
| +007+ | 4.42 | Frank Viola | 124 | MIN |
| +008+ | 4.11 | Orel Hershiser | 128 | LAN |
| +011+ | 3.83 | Bob Knepper | 96.7 | HOU |
| +012+ | 3.79 | David Cone | 100.3 | NYN |
| +013+ | 3.68 | Pascual Perez | 69 | WAS |
| +015+ | 3.49 | Teddy Higuera | 106.7 | MIL |
| +017+ | 3.39 | Ron Darling | 119.7 | NYN |
| +023+ | 3.16 | Mark Gubicza | 123.7 | KCA |
| +026+ | 2.98 | Bob Walk | 107.7 | PIT |
| +027+ | 2.98 | Dennis Martinez | 119 | WAS |
| +033+ | 2.71 | Kevin Gross | 120.3 | PHI |
| +032+ | 2.71 | Charlie Hough | 133.3 | TEX |
| +035+ | 2.7 | Dave LaPoint | 110.3 | CHA |
| +038+ | 2.58 | Jim Deshaies | 92 | HOU |
| +041+ | 2.41 | Larry McWilliams | 87.3 | SLN |
| +044+ | 2.33 | Wes Gardner | 42.3 | BOS |
| +047+ | 2.22 | Chris Bosio | 125.3 | MIL |
| +048+ | 2.21 | John Smiley | 103.7 | PIT |
| +051+ | 2 | Dave Stieb | 101.7 | TOR |
| +052+ | 2 | Dwight Gooden | 127.7 | NYN |
| +053+ | 1.97 | Mike Scott | 109 | HOU |
| +056+ | 1.88 | Doyle Alexander | 121.7 | DET |
_