| 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 |
| Mike Scott | HOU | 4.22 | 198807140_HOU_PHI |
| 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 Birkbeck | MIL | -1.04 | 198807100_MIL_MIN |
Based on accumulated WAA for this season up to 1988-07-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.93 | Greg Maddux | 155.7 | CHN |
| +003+ | 5.39 | Roger Clemens | 159.7 | BOS |
| +004+ | 5.33 | Frank Viola | 141 | MIN |
| +007+ | 4.46 | Pascual Perez | 91.3 | WAS |
| +011+ | 4.16 | Mark Gubicza | 139.7 | KCA |
| +020+ | 3.8 | Bob Walk | 124 | PIT |
| +021+ | 3.74 | Orel Hershiser | 140.3 | LAN |
| +022+ | 3.72 | John Tudor | 101.3 | SLN |
| +024+ | 3.57 | Bob Knepper | 110.7 | HOU |
| +026+ | 3.33 | David Cone | 114.7 | NYN |
| +027+ | 3.32 | Dennis Martinez | 132 | WAS |
| +029+ | 2.97 | Teddy Higuera | 110.3 | MIL |
| +031+ | 2.92 | Tim Leary | 116.7 | LAN |
| +032+ | 2.83 | Dave LaPoint | 128.7 | CHA |
| +035+ | 2.78 | Kevin Gross | 134.3 | PHI |
| +037+ | 2.73 | John Smiley | 119 | PIT |
| +039+ | 2.59 | Andy Hawkins | 127.7 | SDN |
| +041+ | 2.51 | Allan Anderson | 105 | MIN |
| +043+ | 2.42 | Dwight Gooden | 142.7 | NYN |
| +044+ | 2.42 | John Candelaria | 118.3 | NYA |
| +046+ | 2.38 | Dave Stieb | 116.7 | TOR |
| +048+ | 2.37 | Doyle Alexander | 136.7 | DET |
| +050+ | 2.34 | Jose Rijo | 94.3 | CIN |
| +052+ | 2.31 | Ron Darling | 139 | NYN |
| +055+ | 2.28 | Jeff Robinson | 110.3 | DET |
_