| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 15.36 | 198806040_TOR_BOS |
| Mike Scott | HOU | 6.38 | 198806030_HOU_SFN |
| Orel Hershiser | LAN | 4.87 | 198806040_CIN_LAN |
| Ron Darling | NYN | 4.31 | 198806040_CHN_NYN |
| Ted Higuera | MIL | 4.25 | 198806040_ANA_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rich Yett | CLE | -3 | 198806030_CLE_DET |
| Dan Petry | ANA | -2.95 | 198806040_ANA_MIL |
| Tom Glavine | ATL | -1.9 | 198806050_ATL_SDN |
| Mike Campbell | SEA | -1.65 | 198806030_SEA_KCA |
| Jeff Sellers | BOS | -1.41 | 198806050_TOR_BOS |
Based on accumulated WAA for this season up to 1988-06-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.38 | Roger Clemens | 111 | BOS |
| +005+ | 3.55 | Bob Knepper | 62.3 | HOU |
| +006+ | 3.43 | David Cone | 64.7 | NYN |
| +007+ | 3.43 | Ron Darling | 93 | NYN |
| +008+ | 3.4 | John Tudor | 55 | SLN |
| +009+ | 3.4 | Greg Maddux | 97.3 | CHN |
| +011+ | 3.08 | Teddy Higuera | 80 | MIL |
| +012+ | 3.05 | Frank Viola | 89.7 | MIN |
| +013+ | 3.01 | Greg Swindell | 96.7 | CLE |
| +018+ | 2.72 | Kevin Gross | 89.3 | PHI |
| +023+ | 2.61 | Orel Hershiser | 87.3 | LAN |
| +024+ | 2.6 | Larry McWilliams | 60.3 | SLN |
| +030+ | 2.32 | Pascual Perez | 53 | WAS |
| +029+ | 2.32 | Dave LaPoint | 80.7 | CHA |
| +032+ | 2.28 | John Candelaria | 74.7 | NYA |
| +034+ | 2.16 | Chris Bosio | 95.3 | MIL |
| +038+ | 2.08 | Tom Candiotti | 93.3 | CLE |
| +039+ | 2.01 | Jim Deshaies | 66.3 | HOU |
| +040+ | 1.97 | Dennis Martinez | 82.7 | WAS |
| +041+ | 1.9 | Paul Kilgus | 83.7 | TEX |
| +047+ | 1.82 | Tom Filer | 24.7 | MIL |
| +049+ | 1.79 | Rick Reuschel | 80.7 | SFN |
| +056+ | 1.72 | John Farrell | 84.7 | CLE |
| +059+ | 1.66 | Tim Leary | 71.7 | LAN |
| +062+ | 1.63 | Dave Stieb | 79 | TOR |
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