| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 8.27 | 198805090_BOS_KCA |
| Mike Scott | HOU | 7.97 | 198805110_NYN_HOU |
| Dwight Gooden | NYN | 6.51 | 198805110_NYN_HOU |
| Fernando Valenzuela | LAN | 2.48 | 198805110_LAN_PIT |
| Jack Morris | DET | 2.08 | 198805090_DET_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rich Yett | CLE | -2.98 | 198805110_CLE_ANA |
| Jerry Reuss | CHA | -2.53 | 198805090_CHA_BAL |
| Mike Moore | SEA | -2.51 | 198805110_SEA_TOR |
| Dan Petry | ANA | -2.38 | 198805090_CLE_ANA |
| Ed Whitson | SDN | -2.11 | 198805090_SDN_SLN |
Based on accumulated WAA for this season up to 1988-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.91 | Ron Darling | 55 | NYN |
| +004+ | 2.9 | Chris Bosio | 66 | MIL |
| +005+ | 2.86 | Roger Clemens | 67 | BOS |
| +006+ | 2.69 | Bob Walk | 47.7 | PIT |
| +008+ | 2.45 | Larry McWilliams | 32.3 | SLN |
| +009+ | 2.44 | Greg Maddux | 64.3 | CHN |
| +010+ | 2.39 | Paul Kilgus | 53.7 | TEX |
| +011+ | 2.38 | Bob Knepper | 35 | HOU |
| +012+ | 2.36 | Dave LaPoint | 51 | CHA |
| +016+ | 2.29 | Kevin Gross | 52.7 | PHI |
| +017+ | 2.28 | Orel Hershiser | 47.7 | LAN |
| +018+ | 2.25 | Pascual Perez | 53 | WAS |
| +022+ | 2.01 | Greg Swindell | 57.7 | CLE |
| +023+ | 1.98 | Dave Stewart | 63.3 | OAK |
| +024+ | 1.96 | Rick Reuschel | 42.7 | SFN |
| +026+ | 1.92 | Danny Jackson | 53 | CIN |
| +029+ | 1.79 | Teddy Higuera | 47 | MIL |
| +031+ | 1.74 | Tom Candiotti | 52.3 | CLE |
| +035+ | 1.68 | John Farrell | 54 | CLE |
| +036+ | 1.62 | Charlie Hough | 61.3 | TEX |
| +039+ | 1.59 | Frank Viola | 59.3 | MIN |
| +038+ | 1.59 | Jim Deshaies | 38 | HOU |
| +040+ | 1.56 | John Tudor | 20 | SLN |
| +042+ | 1.53 | Mike Scott | 61.7 | HOU |
| +047+ | 1.39 | Fernando Valenzuela | 54.3 | LAN |
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