| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ted Higuera | MIL | 6.91 | 198806150_SEA_MIL |
| Mike Scott | HOU | 6.3 | 198806160_HOU_CIN |
| Orel Hershiser | LAN | 5.15 | 198806150_LAN_ATL |
| Ron Darling | NYN | 3.96 | 198806150_SLN_NYN |
| Rick Reuschel | SFN | 2.98 | 198806150_SFN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.37 | 198806171_SDN_LAN |
| Willie Fraser | ANA | -1.99 | 198806170_ANA_KCA |
| Oil Can Boyd | BOS | -1.58 | 198806170_BOS_BAL |
| Jay Tibbs | BAL | -1.38 | 198806170_BOS_BAL |
| Tom Glavine | ATL | -1.28 | 198806150_LAN_ATL |
Based on accumulated WAA for this season up to 1988-06-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.35 | Roger Clemens | 125.3 | BOS |
| +004+ | 4.22 | Teddy Higuera | 97.3 | MIL |
| +006+ | 3.94 | John Tudor | 68.3 | SLN |
| +008+ | 3.71 | David Cone | 79.7 | NYN |
| +009+ | 3.57 | Larry McWilliams | 76.3 | SLN |
| +010+ | 3.52 | Greg Maddux | 112.7 | CHN |
| +012+ | 3.36 | Bob Knepper | 81.7 | HOU |
| +013+ | 3.27 | Dennis Martinez | 99.7 | WAS |
| +016+ | 3.05 | Frank Viola | 108.3 | MIN |
| +018+ | 2.95 | Kevin Gross | 113.3 | PHI |
| +019+ | 2.94 | Orel Hershiser | 102.3 | LAN |
| +024+ | 2.84 | Bob Walk | 86.7 | PIT |
| +026+ | 2.74 | Ron Darling | 104.3 | NYN |
| +028+ | 2.69 | Dave Stieb | 93 | TOR |
| +030+ | 2.54 | Greg Swindell | 107.7 | CLE |
| +031+ | 2.53 | Mark Gubicza | 109.7 | KCA |
| +032+ | 2.49 | Rick Reuschel | 93 | SFN |
| +035+ | 2.42 | Jose Rijo | 62 | CIN |
| +036+ | 2.33 | Pascual Perez | 53 | WAS |
| +042+ | 2.16 | Jeff Russell | 64 | TEX |
| +043+ | 2.15 | Dave LaPoint | 95 | CHA |
| +048+ | 2.1 | Chris Bosio | 106.3 | MIL |
| +049+ | 2.09 | Tom Candiotti | 109.7 | CLE |
| +055+ | 1.91 | Mike Scott | 108.3 | HOU |
| +057+ | 1.86 | John Candelaria | 86 | NYA |
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