| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ted Higuera | MIL | 5.64 | 198806100_MIL_CHA |
| John Tudor | SLN | 5.31 | 198806120_CHN_SLN |
| Mike Scott | HOU | 4.93 | 198806120_ATL_HOU |
| Ron Darling | NYN | 4.75 | 198806100_NYN_WAS |
| Bob Welch | OAK | 2.88 | 198806100_OAK_TEX |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -3.8 | 198806120_LAN_SDN |
| Dan Petry | ANA | -2.25 | 198806100_KCA_ANA |
| Oil Can Boyd | BOS | -1.79 | 198806120_BOS_TOR |
| Tom Glavine | ATL | -1.47 | 198806100_ATL_HOU |
| Charlie Lea | MIN | -1.42 | 198806120_MIN_SEA |
Based on accumulated WAA for this season up to 1988-06-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.64 | Roger Clemens | 118.7 | BOS |
| +004+ | 3.92 | John Tudor | 68.3 | SLN |
| +005+ | 3.71 | Teddy Higuera | 89.3 | MIL |
| +008+ | 3.49 | Greg Maddux | 112.7 | CHN |
| +009+ | 3.37 | Bob Knepper | 75.3 | HOU |
| +010+ | 3.34 | Greg Swindell | 105.3 | CLE |
| +013+ | 3.05 | David Cone | 69.7 | NYN |
| +014+ | 3 | Ron Darling | 97.3 | NYN |
| +015+ | 2.99 | Larry McWilliams | 67.3 | SLN |
| +017+ | 2.92 | Orel Hershiser | 95.3 | LAN |
| +020+ | 2.71 | Frank Viola | 102.3 | MIN |
| +028+ | 2.41 | Dennis Martinez | 90.7 | WAS |
| +029+ | 2.37 | Kevin Gross | 104.7 | PHI |
| +030+ | 2.3 | Rick Reuschel | 86.7 | SFN |
| +031+ | 2.29 | Pascual Perez | 53 | WAS |
| +034+ | 2.26 | Dave Stieb | 86 | TOR |
| +036+ | 2.19 | Dave LaPoint | 89 | CHA |
| +037+ | 2.18 | John Candelaria | 80.7 | NYA |
| +043+ | 2.02 | Mark Gubicza | 101.7 | KCA |
| +042+ | 2.02 | Bob Walk | 77.7 | PIT |
| +046+ | 1.96 | Tom Candiotti | 101.7 | CLE |
| +049+ | 1.93 | Jose Rijo | 54 | CIN |
| +050+ | 1.92 | Jeff Russell | 54 | TEX |
| +055+ | 1.82 | Tim Leary | 78 | LAN |
| +059+ | 1.79 | Mike Scott | 100.7 | HOU |
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