| 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 |
| David Cone | NYN | 3.77 | 198806290_NYN_PIT |
| Bob Walk | PIT | 3.43 | 198806290_NYN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.48 | 198806280_SDN_CIN |
| Tom Glavine | ATL | -2.85 | 198806300_ATL_WAS |
| 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 1988-06-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.11 | Greg Maddux | 137.7 | CHN |
| +004+ | 4.85 | John Tudor | 91.3 | SLN |
| +005+ | 4.7 | Roger Clemens | 143.7 | BOS |
| +007+ | 4.43 | Frank Viola | 124 | MIN |
| +008+ | 4.12 | Orel Hershiser | 128 | LAN |
| +012+ | 3.85 | Bob Knepper | 96.7 | HOU |
| +013+ | 3.8 | David Cone | 100.3 | NYN |
| +014+ | 3.68 | Pascual Perez | 69 | WAS |
| +016+ | 3.49 | Teddy Higuera | 106.7 | MIL |
| +020+ | 3.4 | Ron Darling | 119.7 | NYN |
| +024+ | 3.17 | Mark Gubicza | 123.7 | KCA |
| +027+ | 2.99 | Bob Walk | 107.7 | PIT |
| +026+ | 2.99 | Dennis Martinez | 119 | WAS |
| +033+ | 2.72 | Charlie Hough | 133.3 | TEX |
| +034+ | 2.71 | Kevin Gross | 120.3 | PHI |
| +037+ | 2.61 | Dave LaPoint | 116.3 | CHA |
| +038+ | 2.6 | Jim Deshaies | 92 | HOU |
| +041+ | 2.41 | Larry McWilliams | 87.3 | SLN |
| +044+ | 2.33 | Wes Gardner | 42.3 | BOS |
| +047+ | 2.23 | Chris Bosio | 125.3 | MIL |
| +048+ | 2.21 | John Smiley | 103.7 | PIT |
| +051+ | 2 | Dwight Gooden | 127.7 | NYN |
| +052+ | 2 | Dave Stieb | 101.7 | TOR |
| +053+ | 1.99 | Mike Scott | 109 | HOU |
| +056+ | 1.88 | Doyle Alexander | 121.7 | DET |
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