| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 9.96 | 198805040_CHA_BOS |
| Orel Hershiser | LAN | 3.99 | 198805040_PIT_LAN |
| Ted Higuera | MIL | 3.48 | 198805030_MIN_MIL |
| Charlie Hough | TEX | 2.38 | 198805040_TEX_MIL |
| Danny Darwin | HOU | 1.74 | 198805040_HOU_NYN |
| 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 Boddicker | BAL | -2.04 | 198805030_TEX_BAL |
Based on accumulated WAA for this season up to 1988-05-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.84 | Kevin Gross | 47.3 | PHI |
| +004+ | 2.42 | Mike Scott | 50.7 | HOU |
| +005+ | 2.36 | Dave LaPoint | 44.7 | CHA |
| +006+ | 2.31 | Ron Darling | 46 | NYN |
| +008+ | 2.27 | Tom Candiotti | 49 | CLE |
| +009+ | 2.26 | Orel Hershiser | 46.7 | LAN |
| +011+ | 2.11 | Larry McWilliams | 25.7 | SLN |
| +012+ | 2.09 | Greg Swindell | 51.7 | CLE |
| +014+ | 1.96 | Bob Knepper | 28 | HOU |
| +015+ | 1.95 | Roger Clemens | 58 | BOS |
| +018+ | 1.79 | Pascual Perez | 46 | WAS |
| +019+ | 1.76 | Bob Walk | 32 | PIT |
| +020+ | 1.71 | Charlie Hough | 53.3 | TEX |
| +021+ | 1.71 | Dwight Gooden | 44 | NYN |
| +025+ | 1.53 | Rick Reuschel | 35.3 | SFN |
| +031+ | 1.37 | John Farrell | 46 | CLE |
| +032+ | 1.36 | Bill Wegman | 45 | MIL |
| +034+ | 1.32 | Brian Fisher | 29.3 | PIT |
| +035+ | 1.31 | Chris Bosio | 49 | MIL |
| +039+ | 1.27 | Teddy Higuera | 39.3 | MIL |
| +040+ | 1.25 | Jim Deshaies | 32 | HOU |
| XXXXX | 1.19 | Greg Maddux | 47 | CHN |
| XXXXX | 1.15 | Dave Stewart | 54.3 | OAK |
| XXXXX | 1.12 | Paul Kilgus | 37.7 | TEX |
| XXXXX | 1.09 | John Tudor | 12 | SLN |
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