| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 9.96 | 198805040_CHA_BOS |
| Mike Scott | HOU | 9.79 | 198805060_HOU_WAS |
| Dwight Gooden | NYN | 6.55 | 198805060_CIN_NYN |
| Orel Hershiser | LAN | 3.99 | 198805040_PIT_LAN |
| Charlie Hough | TEX | 2.38 | 198805040_TEX_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobby Witt | TEX | -4.27 | 198805050_TEX_MIL |
| Dan Petry | ANA | -3.25 | 198805040_DET_ANA |
| Rick Mahler | ATL | -2.68 | 198805050_ATL_WAS |
| Rich Yett | CLE | -2.65 | 198805050_CLE_SEA |
| Mike Moore | SEA | -2.6 | 198805060_DET_SEA |
Based on accumulated WAA for this season up to 1988-05-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.84 | Kevin Gross | 47.3 | PHI |
| +004+ | 2.36 | Dave LaPoint | 44.7 | CHA |
| +005+ | 2.29 | Ron Darling | 46 | NYN |
| +006+ | 2.27 | Tom Candiotti | 49 | CLE |
| +007+ | 2.26 | Orel Hershiser | 46.7 | LAN |
| +009+ | 2.21 | Bob Walk | 40 | PIT |
| +011+ | 2.12 | Chris Bosio | 58 | MIL |
| +012+ | 2.11 | Larry McWilliams | 25.7 | SLN |
| +013+ | 2.09 | Greg Swindell | 51.7 | CLE |
| +014+ | 2.08 | Dwight Gooden | 53 | NYN |
| +016+ | 2.01 | Mike Scott | 56 | HOU |
| +017+ | 1.97 | Roger Clemens | 58 | BOS |
| +018+ | 1.95 | Bob Knepper | 28 | HOU |
| +021+ | 1.77 | Pascual Perez | 46 | WAS |
| +024+ | 1.71 | Charlie Hough | 53.3 | TEX |
| +025+ | 1.63 | Greg Maddux | 54.3 | CHN |
| +028+ | 1.55 | Rick Reuschel | 35.3 | SFN |
| +029+ | 1.55 | Paul Kilgus | 44.7 | TEX |
| +030+ | 1.51 | Frank Viola | 51.7 | MIN |
| +034+ | 1.37 | John Farrell | 46 | CLE |
| +035+ | 1.36 | Bill Wegman | 45 | MIL |
| +039+ | 1.29 | Brian Fisher | 29.3 | PIT |
| +043+ | 1.27 | Teddy Higuera | 39.3 | MIL |
| XXXXX | 1.24 | Jim Deshaies | 32 | HOU |
| XXXXX | 1.15 | Dave Stewart | 54.3 | OAK |
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