| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 17.93 | 198806130_NYA_BOS |
| John Tudor | SLN | 5.31 | 198806120_CHN_SLN |
| Mike Scott | HOU | 4.93 | 198806120_ATL_HOU |
| Dwight Gooden | NYN | 4.54 | 198806110_NYN_WAS |
| Frank Viola | MIN | 2.39 | 198806110_MIN_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.8 | 198806120_LAN_SDN |
| Rich Yett | CLE | -2.88 | 198806130_CLE_TOR |
| Mike Campbell | SEA | -2.55 | 198806130_SEA_MIL |
| Oil Can Boyd | BOS | -1.79 | 198806120_BOS_TOR |
| Neal Heaton | WAS | -1.76 | 198806130_WAS_PHI |
Based on accumulated WAA for this season up to 1988-06-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.36 | Roger Clemens | 125.3 | BOS |
| +005+ | 3.91 | John Tudor | 68.3 | SLN |
| +006+ | 3.71 | Teddy Higuera | 89.3 | MIL |
| +007+ | 3.7 | David Cone | 79.7 | NYN |
| +008+ | 3.54 | Larry McWilliams | 76.3 | SLN |
| +009+ | 3.51 | Greg Maddux | 112.7 | CHN |
| +011+ | 3.38 | Bob Knepper | 75.3 | HOU |
| +013+ | 3.35 | Greg Swindell | 105.3 | CLE |
| +016+ | 2.96 | Ron Darling | 97.3 | NYN |
| +018+ | 2.93 | Orel Hershiser | 95.3 | LAN |
| +022+ | 2.83 | Bob Walk | 86.7 | PIT |
| +024+ | 2.72 | Frank Viola | 102.3 | MIN |
| +029+ | 2.44 | Dennis Martinez | 90.7 | WAS |
| +030+ | 2.39 | Kevin Gross | 104.7 | PHI |
| +031+ | 2.33 | Rick Reuschel | 86.7 | SFN |
| +032+ | 2.31 | Pascual Perez | 53 | WAS |
| +036+ | 2.27 | Dave Stieb | 86 | TOR |
| +039+ | 2.2 | Dave LaPoint | 89 | CHA |
| +040+ | 2.19 | John Candelaria | 80.7 | NYA |
| +046+ | 2.03 | Mark Gubicza | 101.7 | KCA |
| +049+ | 1.97 | Tom Candiotti | 101.7 | CLE |
| +051+ | 1.94 | Jose Rijo | 54 | CIN |
| +052+ | 1.92 | Jeff Russell | 54 | TEX |
| +057+ | 1.83 | Tim Leary | 78 | LAN |
| +058+ | 1.8 | Mike Scott | 100.7 | HOU |
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