| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 11.84 | 198805200_ANA_BOS |
| Dwight Gooden | NYN | 4.63 | 198805210_NYN_LAN |
| John Tudor | SLN | 2.89 | 198805220_HOU_SLN |
| Bob Welch | OAK | 2.46 | 198805200_OAK_NYA |
| Fernando Valenzuela | LAN | 2.09 | 198805220_NYN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Moore | SEA | -2.81 | 198805220_SEA_BAL |
| Rich Yett | CLE | -2.63 | 198805220_CLE_KCA |
| Rick Mahler | ATL | -1.78 | 198805220_ATL_PIT |
| Jerry Reuss | CHA | -1.35 | 198805200_DET_CHA |
| Mike Birkbeck | MIL | -1.12 | 198805220_TOR_MIL |
Based on accumulated WAA for this season up to 1988-05-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 3.68 | Roger Clemens | 86 | BOS |
| +004+ | 3.66 | Chris Bosio | 82 | MIL |
| +005+ | 3.28 | Bob Knepper | 50.3 | HOU |
| +006+ | 3.27 | Dave LaPoint | 66 | CHA |
| +007+ | 3.08 | Greg Maddux | 81 | CHN |
| +008+ | 3.04 | Kevin Gross | 74.7 | PHI |
| +009+ | 3.02 | Ron Darling | 70 | NYN |
| +013+ | 2.93 | Tom Candiotti | 70.3 | CLE |
| +014+ | 2.87 | Greg Swindell | 74.3 | CLE |
| +017+ | 2.56 | John Candelaria | 69.7 | NYA |
| +018+ | 2.55 | John Tudor | 39.7 | SLN |
| +019+ | 2.55 | Paul Kilgus | 68.3 | TEX |
| +021+ | 2.49 | Jim Deshaies | 53.3 | HOU |
| +025+ | 2.35 | Pascual Perez | 53 | WAS |
| +026+ | 2.34 | David Cone | 46.3 | NYN |
| +027+ | 2.28 | Larry McWilliams | 46.3 | SLN |
| +031+ | 2.05 | Frank Viola | 73.7 | MIN |
| +032+ | 2.03 | Dave Stewart | 77.3 | OAK |
| +033+ | 1.98 | Dwight Gooden | 74.7 | NYN |
| +035+ | 1.95 | Jose Guzman | 68.7 | TEX |
| +036+ | 1.94 | Teddy Higuera | 63 | MIL |
| +038+ | 1.87 | Doyle Alexander | 71 | DET |
| +040+ | 1.86 | Orel Hershiser | 61.7 | LAN |
| +045+ | 1.71 | Mike Scott | 68.7 | HOU |
| +056+ | 1.43 | Ray Hayward | 27.7 | TEX |
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