| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 15.18 | 198807200_MIN_BOS |
| Ted Higuera | MIL | 5.15 | 198807200_KCA_MIL |
| Greg Maddux | CHN | 5.03 | 198807200_SFN_CHN |
| Pascual Perez | WAS | 4.9 | 198807190_HOU_WAS |
| John Tudor | SLN | 4.7 | 198807200_LAN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -4.35 | 198807200_TOR_ANA |
| Mike Smithson | BOS | -3.18 | 198807190_MIN_BOS |
| Steve Trout | SEA | -2.58 | 198807180_DET_SEA |
| Pete Smith | ATL | -1.62 | 198807200_ATL_PHI |
| Walt Terrell | DET | -1.5 | 198807180_DET_SEA |
Based on accumulated WAA for this season up to 1988-07-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.15 | Roger Clemens | 175 | BOS |
| +003+ | 5.58 | Greg Maddux | 169.7 | CHN |
| +004+ | 5.41 | Frank Viola | 146 | MIN |
| +012+ | 4.46 | Pascual Perez | 98.3 | WAS |
| +015+ | 4.33 | Teddy Higuera | 128 | MIL |
| +018+ | 4.16 | Mark Gubicza | 145.3 | KCA |
| +023+ | 3.9 | Dennis Martinez | 140.7 | WAS |
| +024+ | 3.87 | Orel Hershiser | 147.3 | LAN |
| +026+ | 3.76 | Bob Walk | 135 | PIT |
| +027+ | 3.68 | David Cone | 122.7 | NYN |
| +028+ | 3.65 | Tim Leary | 125.7 | LAN |
| +031+ | 3.09 | John Tudor | 113 | SLN |
| +034+ | 3.01 | Jose Rijo | 106.3 | CIN |
| +036+ | 2.85 | Jeff Robinson | 118.3 | DET |
| +037+ | 2.79 | John Smiley | 124 | PIT |
| +040+ | 2.62 | Larry McWilliams | 100.3 | SLN |
| +041+ | 2.61 | Dwight Gooden | 148.7 | NYN |
| +044+ | 2.49 | Kevin Gross | 147.7 | PHI |
| +046+ | 2.45 | Jim Deshaies | 118.7 | HOU |
| +047+ | 2.43 | Danny Jackson | 135.7 | CIN |
| +048+ | 2.42 | Dave LaPoint | 132.7 | CHA |
| +049+ | 2.42 | Bob Knepper | 116 | HOU |
| +054+ | 2.31 | Dave Stieb | 124.7 | TOR |
| +058+ | 2.25 | Allan Anderson | 108.7 | MIN |
| +060+ | 2.19 | Rick Reuschel | 126.3 | SFN |
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