| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.26 | 198807092_BOS_CHA |
| Orel Hershiser | LAN | 6.8 | 198807100_PIT_LAN |
| John Tudor | SLN | 6.78 | 198807090_SLN_SFN |
| Ted Higuera | MIL | 5.51 | 198807090_MIL_MIN |
| Dwight Gooden | NYN | 5.14 | 198807080_NYN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobby Witt | TEX | -4.55 | 198807100_TEX_BAL |
| Tom Glavine | ATL | -3.69 | 198807100_WAS_ATL |
| Willie Fraser | ANA | -3.65 | 198807100_ANA_CLE |
| Ed Whitson | SDN | -3.2 | 198807090_CHN_SDN |
| Mike Smithson | BOS | -2.63 | 198807081_BOS_CHA |
Based on accumulated WAA for this season up to 1988-07-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.94 | Greg Maddux | 155.7 | CHN |
| +003+ | 5.41 | Roger Clemens | 159.7 | BOS |
| +004+ | 5.32 | Frank Viola | 141 | MIN |
| +009+ | 4.17 | Mark Gubicza | 139.7 | KCA |
| +016+ | 3.81 | Bob Walk | 124 | PIT |
| +018+ | 3.79 | Pascual Perez | 83.3 | WAS |
| +020+ | 3.75 | Orel Hershiser | 140.3 | LAN |
| +021+ | 3.72 | John Tudor | 101.3 | SLN |
| +023+ | 3.58 | Bob Knepper | 110.7 | HOU |
| +025+ | 3.36 | David Cone | 114.7 | NYN |
| +026+ | 3.35 | Ron Darling | 133.7 | NYN |
| +027+ | 3.34 | Dennis Martinez | 132 | WAS |
| +029+ | 3.07 | John Smiley | 118 | PIT |
| +031+ | 2.98 | Teddy Higuera | 110.3 | MIL |
| +033+ | 2.83 | Dave LaPoint | 128.7 | CHA |
| +035+ | 2.78 | Kevin Gross | 134.3 | PHI |
| +036+ | 2.66 | Larry McWilliams | 96.3 | SLN |
| +039+ | 2.46 | Dwight Gooden | 142.7 | NYN |
| +041+ | 2.43 | John Candelaria | 113.7 | NYA |
| +044+ | 2.39 | Dave Stieb | 116.7 | TOR |
| +047+ | 2.37 | Doyle Alexander | 136.7 | DET |
| +049+ | 2.35 | Rick Reuschel | 115 | SFN |
| +050+ | 2.34 | Jose Rijo | 94.3 | CIN |
| +051+ | 2.31 | Tim Leary | 109.7 | LAN |
| +053+ | 2.28 | Jeff Robinson | 110.3 | DET |
_