| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 14.3 | 198805300_BOS_ANA |
| Mike Scott | HOU | 8.6 | 198805280_HOU_CHN |
| Ron Darling | NYN | 4.07 | 198805300_LAN_NYN |
| Orel Hershiser | LAN | 3.96 | 198805290_LAN_WAS |
| Ted Higuera | MIL | 3.79 | 198805300_MIL_TOR |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.95 | 198805300_SDN_PHI |
| Rich Yett | CLE | -3.33 | 198805280_MIL_CLE |
| Dan Petry | ANA | -2.95 | 198805300_BOS_ANA |
| Rick Mahler | ATL | -1.44 | 198805280_SLN_ATL |
| Jeff Sellers | BOS | -1.25 | 198805290_BOS_OAK |
Based on accumulated WAA for this season up to 1988-05-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.87 | Roger Clemens | 104 | BOS |
| +005+ | 3.55 | Greg Swindell | 89.7 | CLE |
| +006+ | 3.5 | Chris Bosio | 90 | MIL |
| +007+ | 3.33 | Ron Darling | 86 | NYN |
| +008+ | 3.28 | Greg Maddux | 89 | CHN |
| +009+ | 3.25 | Kevin Gross | 83.3 | PHI |
| +010+ | 3.2 | Bob Knepper | 56.3 | HOU |
| +011+ | 3.03 | Larry McWilliams | 55.3 | SLN |
| +012+ | 3.01 | John Tudor | 47.7 | SLN |
| +016+ | 2.92 | Dave LaPoint | 79 | CHA |
| +018+ | 2.84 | Orel Hershiser | 78.7 | LAN |
| +019+ | 2.82 | David Cone | 54.7 | NYN |
| +023+ | 2.42 | Paul Kilgus | 74.3 | TEX |
| +024+ | 2.41 | Tom Candiotti | 86.3 | CLE |
| +025+ | 2.38 | Frank Viola | 80.7 | MIN |
| +027+ | 2.37 | Jim Deshaies | 61.3 | HOU |
| +028+ | 2.29 | Jose Guzman | 77.7 | TEX |
| +029+ | 2.25 | John Candelaria | 74.7 | NYA |
| +030+ | 2.25 | Pascual Perez | 53 | WAS |
| +032+ | 2.21 | Teddy Higuera | 71 | MIL |
| +045+ | 1.92 | Dennis Martinez | 76 | WAS |
| +055+ | 1.67 | John Farrell | 78 | CLE |
| +062+ | 1.56 | Tim Leary | 64 | LAN |
| +063+ | 1.52 | Mike Scott | 80.7 | HOU |
| +068+ | 1.46 | Bob Walk | 62.7 | PIT |
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