| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.98 | 198808040_BOS_DET |
| Pascual Perez | WAS | 3.44 | 198808030_WAS_PIT |
| Mike Scott | HOU | 3.15 | 198808030_HOU_SFN |
| Tim Leary | LAN | 3.02 | 198808020_CIN_LAN |
| David Cone | NYN | 2.92 | 198808020_CHN_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Trout | SEA | -4.06 | 198808020_ANA_SEA |
| Jim Clancy | TOR | -2.63 | 198808020_MIN_TOR |
| Scott Bailes | CLE | -1.91 | 198808020_CLE_BAL |
| Jeff Ballard | BAL | -1.65 | 198808030_CLE_BAL |
| Brian Fisher | PIT | -0.93 | 198808040_WAS_PIT |
Based on accumulated WAA for this season up to 1988-08-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 6.22 | Roger Clemens | 198.3 | BOS |
| +004+ | 6.04 | Frank Viola | 167.7 | MIN |
| +009+ | 5.27 | Tim Leary | 152.7 | LAN |
| +010+ | 5.02 | Dennis Martinez | 164.7 | WAS |
| +017+ | 4.73 | Greg Maddux | 182.7 | CHN |
| +019+ | 4.66 | David Cone | 144.3 | NYN |
| +021+ | 4.5 | Teddy Higuera | 144.3 | MIL |
| +022+ | 4.47 | Orel Hershiser | 170 | LAN |
| +023+ | 4.43 | Mark Gubicza | 168.3 | KCA |
| +025+ | 4.09 | John Tudor | 130.3 | SLN |
| +027+ | 4.06 | Jeff Robinson | 144 | DET |
| +028+ | 3.93 | Pascual Perez | 115 | WAS |
| +031+ | 3.82 | Bob Walk | 146 | PIT |
| +032+ | 3.79 | Jose Rijo | 128 | CIN |
| +035+ | 3.55 | Danny Jackson | 159 | CIN |
| +038+ | 3.4 | Allan Anderson | 131.3 | MIN |
| +040+ | 3.17 | Mike Scott | 146.7 | HOU |
| +041+ | 3.13 | Dwight Gooden | 172.3 | NYN |
| +043+ | 2.99 | Joe Magrane | 88.3 | SLN |
| +048+ | 2.68 | Charlie Hough | 172.3 | TEX |
| +059+ | 2.41 | Don Robinson | 85 | SFN |
| +061+ | 2.33 | Rick Reuschel | 146.3 | SFN |
| +065+ | 2.28 | Dave Stieb | 139.3 | TOR |
| +068+ | 2.2 | John Dopson | 107 | WAS |
| +069+ | 2.18 | John Smiley | 141.7 | PIT |
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