| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.21 | 198806290_CLE_BOS |
| Frank Viola | MIN | 5.51 | 198807010_MIN_MIL |
| Orel Hershiser | LAN | 5.45 | 198806290_LAN_HOU |
| Ron Darling | NYN | 4.44 | 198807011_HOU_NYN |
| Pascual Perez | WAS | 3.74 | 198807010_ATL_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | -2.85 | 198806300_ATL_WAS |
| Mike Moore | SEA | -1.78 | 198806290_TEX_SEA |
| Rich Dotson | NYA | -0.61 | 198806290_DET_NYA |
| Jose Bautista | BAL | -0.52 | 198806290_TOR_BAL |
| Walt Terrell | DET | -0.37 | 198806290_DET_NYA |
Based on accumulated WAA for this season up to 1988-07-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.12 | Greg Maddux | 137.7 | CHN |
| +004+ | 4.87 | John Tudor | 91.3 | SLN |
| +005+ | 4.74 | Frank Viola | 132 | MIN |
| +006+ | 4.73 | Roger Clemens | 143.7 | BOS |
| +008+ | 4.13 | Orel Hershiser | 128 | LAN |
| +013+ | 3.82 | Bob Knepper | 96.7 | HOU |
| +014+ | 3.76 | David Cone | 100.3 | NYN |
| +016+ | 3.61 | Pascual Perez | 75.3 | WAS |
| +017+ | 3.57 | Ron Darling | 127 | NYN |
| +018+ | 3.5 | Teddy Higuera | 106.7 | MIL |
| +026+ | 3.17 | Mark Gubicza | 123.7 | KCA |
| +027+ | 3 | Dennis Martinez | 119 | WAS |
| +028+ | 2.98 | Bob Walk | 107.7 | PIT |
| +033+ | 2.73 | Charlie Hough | 133.3 | TEX |
| +034+ | 2.72 | Kevin Gross | 120.3 | PHI |
| +037+ | 2.62 | Dave LaPoint | 116.3 | CHA |
| +038+ | 2.53 | Doyle Alexander | 128.7 | DET |
| +040+ | 2.49 | John Smiley | 111.7 | PIT |
| +043+ | 2.43 | Larry McWilliams | 87.3 | SLN |
| +045+ | 2.4 | Dave Stieb | 110.7 | TOR |
| +046+ | 2.34 | Wes Gardner | 42.3 | BOS |
| +049+ | 2.24 | Chris Bosio | 125.3 | MIL |
| +052+ | 2.08 | Jim Deshaies | 98.3 | HOU |
| +055+ | 1.96 | Mike Scott | 109 | HOU |
| +056+ | 1.95 | Dwight Gooden | 127.7 | NYN |
_