| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.98 | 198808040_BOS_DET |
| Frank Viola | MIN | 7.22 | 198808052_MIN_NYA |
| Ted Higuera | MIL | 5.11 | 198808051_MIL_BAL |
| Orel Hershiser | LAN | 5.05 | 198808050_LAN_HOU |
| Dennis Martinez | WAS | 4.69 | 198808050_WAS_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Fraser | ANA | -6.47 | 198808052_CHA_ANA |
| Mike Moore | SEA | -2.18 | 198808040_SEA_OAK |
| Mike Morgan | BAL | -1.32 | 198808052_MIL_BAL |
| Mike Smithson | BOS | -1.31 | 198808051_BOS_DET |
| Pete Smith | ATL | -1.13 | 198808060_SFN_ATL |
Based on accumulated WAA for this season up to 1988-08-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.31 | Frank Viola | 175 | MIN |
| +003+ | 6.29 | Roger Clemens | 198.3 | BOS |
| +005+ | 5.84 | Dennis Martinez | 174 | WAS |
| +008+ | 5.31 | Tim Leary | 152.7 | LAN |
| +013+ | 4.97 | Mark Gubicza | 176.3 | KCA |
| +018+ | 4.68 | David Cone | 144.3 | NYN |
| +022+ | 4.27 | Teddy Higuera | 150.7 | MIL |
| +025+ | 4.08 | John Tudor | 137.3 | SLN |
| +027+ | 4.06 | Jeff Robinson | 144 | DET |
| +028+ | 3.98 | Bob Walk | 152.3 | PIT |
| +030+ | 3.95 | Pascual Perez | 115 | WAS |
| +031+ | 3.89 | Orel Hershiser | 175 | LAN |
| +034+ | 3.61 | Jose Rijo | 135.3 | CIN |
| +035+ | 3.46 | Danny Jackson | 165 | CIN |
| +036+ | 3.42 | Allan Anderson | 131.3 | MIN |
| +037+ | 3.28 | Greg Maddux | 185 | CHN |
| +039+ | 3.19 | Mike Scott | 146.7 | HOU |
| +042+ | 3.04 | Dwight Gooden | 178.3 | NYN |
| +043+ | 3 | Joe Magrane | 88.3 | SLN |
| +058+ | 2.44 | Charlie Hough | 181.3 | TEX |
| +061+ | 2.38 | Rick Reuschel | 146.3 | SFN |
| +071+ | 2.22 | John Dopson | 107 | WAS |
| +073+ | 2.2 | John Smiley | 141.7 | PIT |
| +074+ | 2.17 | Greg Swindell | 164.3 | CLE |
| +075+ | 2.12 | Ron Darling | 163 | NYN |
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