| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | -2.76 | 198808010_ATL_SDN |
| Mike Moore | SEA | -2.48 | 198807300_OAK_SEA |
| Jay Tibbs | BAL | -1.29 | 198807300_KCA_BAL |
| Ed Whitson | SDN | -1.25 | 198808010_ATL_SDN |
| Brian Fisher | PIT | -1.04 | 198807300_PIT_NYN |
Based on accumulated WAA for this season up to 1988-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.21 | Roger Clemens | 193 | BOS |
| +004+ | 6.04 | Frank Viola | 167.7 | MIN |
| +009+ | 5.02 | Dennis Martinez | 164.7 | WAS |
| +013+ | 4.71 | Greg Maddux | 182.7 | CHN |
| +018+ | 4.52 | Tim Leary | 143.7 | LAN |
| +019+ | 4.51 | Teddy Higuera | 144.3 | MIL |
| +020+ | 4.5 | Orel Hershiser | 170 | LAN |
| +021+ | 4.44 | Mark Gubicza | 168.3 | KCA |
| +025+ | 4.09 | David Cone | 135.3 | NYN |
| +024+ | 4.09 | John Tudor | 130.3 | SLN |
| +026+ | 3.97 | Pascual Perez | 108 | WAS |
| +029+ | 3.84 | Bob Walk | 146 | PIT |
| +031+ | 3.61 | Jose Rijo | 121 | CIN |
| +032+ | 3.57 | Danny Jackson | 159 | CIN |
| +036+ | 3.27 | Jeff Robinson | 135.3 | DET |
| +037+ | 3.13 | Dwight Gooden | 172.3 | NYN |
| +039+ | 3 | Rick Reuschel | 144.3 | SFN |
| +043+ | 2.83 | John Smiley | 139.3 | PIT |
| +044+ | 2.8 | Allan Anderson | 122.3 | MIN |
| +047+ | 2.69 | Mike Scott | 138.7 | HOU |
| +048+ | 2.65 | Charlie Hough | 172.3 | TEX |
| +056+ | 2.48 | Joe Magrane | 80 | SLN |
| +058+ | 2.41 | Don Robinson | 85 | SFN |
| +060+ | 2.38 | Bob Knepper | 128 | HOU |
| +063+ | 2.29 | Dave Stieb | 139.3 | TOR |
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