| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 14.3 | 198805300_BOS_ANA |
| Dwight Gooden | NYN | 4.75 | 198805310_LAN_NYN |
| Orel Hershiser | LAN | 3.96 | 198805290_LAN_WAS |
| Ted Higuera | MIL | 3.79 | 198805300_MIL_TOR |
| Bob Welch | OAK | 3.16 | 198805300_NYA_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.95 | 198805300_SDN_PHI |
| Mike Smithson | BOS | -3.59 | 198805310_BOS_ANA |
| Dan Petry | ANA | -2.95 | 198805300_BOS_ANA |
| Tom Glavine | ATL | -2.62 | 198805310_PIT_ATL |
| Mike Morgan | BAL | -2.04 | 198805310_BAL_SEA |
Based on accumulated WAA for this season up to 1988-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.91 | Roger Clemens | 104 | BOS |
| +005+ | 3.56 | Greg Swindell | 89.7 | CLE |
| +006+ | 3.53 | Bob Knepper | 62.3 | HOU |
| +008+ | 3.32 | Greg Maddux | 89 | CHN |
| +007+ | 3.32 | Ron Darling | 86 | NYN |
| +009+ | 3.28 | Kevin Gross | 83.3 | PHI |
| +010+ | 3.03 | John Tudor | 47.7 | SLN |
| +012+ | 2.95 | Dave LaPoint | 79 | CHA |
| +015+ | 2.84 | Orel Hershiser | 78.7 | LAN |
| +016+ | 2.81 | David Cone | 54.7 | NYN |
| +019+ | 2.65 | Chris Bosio | 91.7 | MIL |
| +020+ | 2.64 | Larry McWilliams | 60.3 | SLN |
| +023+ | 2.42 | Tom Candiotti | 86.3 | CLE |
| +024+ | 2.41 | Frank Viola | 80.7 | MIN |
| +026+ | 2.39 | Jim Deshaies | 61.3 | HOU |
| +028+ | 2.34 | Jose Guzman | 77.7 | TEX |
| +029+ | 2.28 | John Candelaria | 74.7 | NYA |
| +030+ | 2.27 | Pascual Perez | 53 | WAS |
| +031+ | 2.24 | Teddy Higuera | 71 | MIL |
| +038+ | 2.1 | Dave Stieb | 75.3 | TOR |
| +042+ | 1.95 | Dennis Martinez | 76 | WAS |
| +046+ | 1.89 | Paul Kilgus | 77.3 | TEX |
| +057+ | 1.64 | John Farrell | 84.7 | CLE |
| +061+ | 1.57 | Tim Leary | 64 | LAN |
| +062+ | 1.55 | Mike Scott | 80.7 | HOU |
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