| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 10.95 | 198804290_MIN_BOS |
| Mike Scott | HOU | 8.04 | 198805010_WAS_HOU |
| Dwight Gooden | NYN | 4.98 | 198805010_NYN_CIN |
| Orel Hershiser | LAN | 4.09 | 198804290_SLN_LAN |
| Jack Morris | DET | 2.43 | 198804290_SEA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Niekro | MIN | -2.84 | 198804290_MIN_BOS |
| Dan Petry | ANA | -2.8 | 198804290_ANA_TOR |
| Mike Moore | SEA | -2.79 | 198805010_SEA_DET |
| Bobby Witt | TEX | -2.69 | 198804300_TEX_NYA |
| Al Nipper | CHN | -2.6 | 198804300_CHN_SFN |
Based on accumulated WAA for this season up to 1988-05-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.47 | Dave LaPoint | 38.3 | CHA |
| +004+ | 2.42 | Roger Clemens | 51.3 | BOS |
| +005+ | 2.37 | Mike Scott | 50.7 | HOU |
| +006+ | 2.33 | Ron Darling | 39 | NYN |
| +007+ | 2.25 | Tom Candiotti | 49 | CLE |
| +008+ | 2.23 | Kevin Gross | 38.3 | PHI |
| +009+ | 2.16 | Charlie Hough | 49.3 | TEX |
| +010+ | 2.13 | Orel Hershiser | 40.3 | LAN |
| +012+ | 1.85 | Jose Guzman | 32 | TEX |
| +015+ | 1.77 | Pascual Perez | 38 | WAS |
| +016+ | 1.74 | Dwight Gooden | 44 | NYN |
| +017+ | 1.73 | Bob Walk | 32 | PIT |
| +022+ | 1.53 | Rick Reuschel | 35.3 | SFN |
| +027+ | 1.35 | Chris Bosio | 49 | MIL |
| +028+ | 1.28 | Brian Fisher | 29.3 | PIT |
| +029+ | 1.26 | Greg Swindell | 42.7 | CLE |
| XXXXX | 1.24 | John Farrell | 37.7 | CLE |
| XXXXX | 1.22 | Jim Deshaies | 32 | HOU |
| XXXXX | 1.2 | Greg Maddux | 47 | CHN |
| XXXXX | 1.18 | Bob Knepper | 19 | HOU |
| XXXXX | 1.1 | Paul Kilgus | 37.7 | TEX |
| XXXXX | 1.09 | John Tudor | 12 | SLN |
| XXXXX | 1.04 | Dennis Martinez | 39.3 | WAS |
| XXXXX | 0.89 | Teddy Higuera | 30.3 | MIL |
| XXXXX | 0.88 | Jimmy Jones | 25.7 | SDN |
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