| 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 |
| Ron Darling | NYN | 3.43 | 198805020_ATL_NYN |
| Nolan Ryan | HOU | 3.21 | 198805020_HOU_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Nieves | MIL | -4.11 | 198805020_MIN_MIL |
| Dan Petry | ANA | -3.25 | 198805040_DET_ANA |
| Jerry Reuss | CHA | -2.51 | 198805020_NYA_CHA |
| Jamie Moyer | CHN | -2.34 | 198805020_CHN_SDN |
| Steve Trout | SEA | -2.31 | 198805020_TOR_SEA |
Based on accumulated WAA for this season up to 1988-05-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.77 | Kevin Gross | 47.3 | PHI |
| +004+ | 2.38 | Mike Scott | 50.7 | HOU |
| +005+ | 2.3 | Dave LaPoint | 44.7 | CHA |
| +006+ | 2.27 | Ron Darling | 46 | NYN |
| +008+ | 2.22 | Orel Hershiser | 46.7 | LAN |
| +009+ | 2.21 | Tom Candiotti | 49 | CLE |
| +011+ | 2.09 | Larry McWilliams | 25.7 | SLN |
| +013+ | 2.02 | Greg Swindell | 51.7 | CLE |
| +014+ | 1.94 | Bob Knepper | 28 | HOU |
| +015+ | 1.9 | Roger Clemens | 58 | BOS |
| +016+ | 1.75 | Pascual Perez | 46 | WAS |
| +018+ | 1.73 | Bob Walk | 32 | PIT |
| +020+ | 1.67 | Dwight Gooden | 44 | NYN |
| +021+ | 1.65 | Charlie Hough | 53.3 | TEX |
| +024+ | 1.5 | Rick Reuschel | 35.3 | SFN |
| +032+ | 1.31 | John Farrell | 46 | CLE |
| +034+ | 1.29 | Brian Fisher | 29.3 | PIT |
| +036+ | 1.27 | Chris Bosio | 49 | MIL |
| XXXXX | 1.24 | Teddy Higuera | 39.3 | MIL |
| XXXXX | 1.22 | Jim Deshaies | 32 | HOU |
| XXXXX | 1.15 | Greg Maddux | 47 | CHN |
| XXXXX | 1.1 | Dave Stewart | 54.3 | OAK |
| XXXXX | 1.08 | John Tudor | 12 | SLN |
| XXXXX | 1.08 | Paul Kilgus | 37.7 | TEX |
| XXXXX | 1.04 | Danny Jackson | 44 | CIN |
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