| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Scott | HOU | 8.6 | 198805280_HOU_CHN |
| Orel Hershiser | LAN | 3.96 | 198805290_LAN_WAS |
| John Tudor | SLN | 3.4 | 198805280_SLN_ATL |
| Bob Ojeda | NYN | 1.7 | 198805290_SDN_NYN |
| Frank Viola | MIN | 1.62 | 198805270_DET_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rich Yett | CLE | -3.33 | 198805280_MIL_CLE |
| Rick Mahler | ATL | -1.44 | 198805280_SLN_ATL |
| Jeff Sellers | BOS | -1.25 | 198805290_BOS_OAK |
| Mike Boddicker | BAL | -1.13 | 198805290_BAL_ANA |
| Mike Campbell | SEA | -1.1 | 198805290_NYA_SEA |
Based on accumulated WAA for this season up to 1988-05-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.49 | Roger Clemens | 95 | BOS |
| +004+ | 3.51 | Chris Bosio | 90 | MIL |
| +006+ | 3.28 | Greg Maddux | 89 | CHN |
| +007+ | 3.25 | Kevin Gross | 83.3 | PHI |
| +008+ | 3.19 | Bob Knepper | 56.3 | HOU |
| +009+ | 3.14 | Greg Swindell | 82.7 | CLE |
| +010+ | 3.02 | Larry McWilliams | 55.3 | SLN |
| +011+ | 2.99 | John Tudor | 47.7 | SLN |
| +013+ | 2.97 | Ron Darling | 77.3 | NYN |
| +016+ | 2.92 | Dave LaPoint | 79 | CHA |
| +018+ | 2.82 | Orel Hershiser | 78.7 | LAN |
| +017+ | 2.82 | David Cone | 54.7 | NYN |
| +023+ | 2.51 | Jim Deshaies | 53.3 | HOU |
| +025+ | 2.42 | Paul Kilgus | 74.3 | TEX |
| +026+ | 2.41 | Tom Candiotti | 86.3 | CLE |
| +027+ | 2.38 | Frank Viola | 80.7 | MIN |
| +029+ | 2.31 | John Candelaria | 74.7 | NYA |
| +030+ | 2.3 | Jose Guzman | 77.7 | TEX |
| +031+ | 2.25 | Pascual Perez | 53 | WAS |
| +048+ | 1.8 | Dennis Martinez | 69.7 | WAS |
| +049+ | 1.79 | Teddy Higuera | 64 | MIL |
| +054+ | 1.69 | Tim Leary | 58.3 | LAN |
| +055+ | 1.67 | John Farrell | 78 | CLE |
| +063+ | 1.52 | Mike Scott | 80.7 | HOU |
| +067+ | 1.46 | Bob Walk | 62.7 | PIT |
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