| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 17.93 | 198806130_NYA_BOS |
| Ted Higuera | MIL | 6.91 | 198806150_SEA_MIL |
| 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 |
|---|---|---|---|
| Mike Smithson | BOS | -3.6 | 198806140_NYA_BOS |
| Mike Moore | SEA | -3.13 | 198806140_SEA_MIL |
| Rich Yett | CLE | -2.88 | 198806130_CLE_TOR |
| Neal Heaton | WAS | -1.76 | 198806130_WAS_PHI |
| Pete Smith | ATL | -1.38 | 198806140_LAN_ATL |
Based on accumulated WAA for this season up to 1988-06-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.32 | Roger Clemens | 125.3 | BOS |
| +004+ | 4.2 | Teddy Higuera | 97.3 | MIL |
| +006+ | 3.92 | John Tudor | 68.3 | SLN |
| +007+ | 3.68 | David Cone | 79.7 | NYN |
| +008+ | 3.55 | Larry McWilliams | 76.3 | SLN |
| +010+ | 3.48 | Greg Maddux | 112.7 | CHN |
| +011+ | 3.39 | Bob Knepper | 75.3 | HOU |
| +013+ | 3.23 | Dennis Martinez | 99.7 | WAS |
| +018+ | 2.89 | Orel Hershiser | 102.3 | LAN |
| +022+ | 2.82 | Bob Walk | 86.7 | PIT |
| +024+ | 2.71 | Ron Darling | 104.3 | NYN |
| +025+ | 2.69 | Frank Viola | 102.3 | MIN |
| +026+ | 2.65 | Dave Stieb | 93 | TOR |
| +028+ | 2.51 | Greg Swindell | 107.7 | CLE |
| +032+ | 2.45 | Rick Reuschel | 93 | SFN |
| +033+ | 2.4 | Jose Rijo | 62 | CIN |
| +035+ | 2.37 | Kevin Gross | 104.7 | PHI |
| +036+ | 2.31 | Pascual Perez | 53 | WAS |
| +038+ | 2.19 | John Candelaria | 80.7 | NYA |
| +041+ | 2.17 | Jeff Russell | 64 | TEX |
| +045+ | 2.11 | Dave LaPoint | 95 | CHA |
| +049+ | 2.06 | Tom Candiotti | 109.7 | CLE |
| +050+ | 1.99 | Mark Gubicza | 101.7 | KCA |
| +060+ | 1.81 | Tim Leary | 78 | LAN |
| +059+ | 1.81 | Mike Scott | 100.7 | HOU |
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