| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 16.73 | 198806080_BOS_NYA |
| Mike Scott | HOU | 6.2 | 198806080_HOU_LAN |
| John Tudor | SLN | 4.6 | 198806070_NYN_SLN |
| Orel Hershiser | LAN | 4.48 | 198806090_HOU_LAN |
| David Cone | NYN | 1.7 | 198806070_NYN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | -4.13 | 198806070_CIN_SDN |
| Rich Yett | CLE | -3.09 | 198806080_TOR_CLE |
| Oil Can Boyd | BOS | -1.7 | 198806070_BOS_NYA |
| Mike Campbell | SEA | -1.69 | 198806080_MIL_SEA |
| Charlie Lea | MIN | -1.29 | 198806070_MIN_CHA |
Based on accumulated WAA for this season up to 1988-06-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.65 | Roger Clemens | 118.7 | BOS |
| +004+ | 3.74 | John Tudor | 61.3 | SLN |
| +005+ | 3.67 | Bob Knepper | 68.3 | HOU |
| +006+ | 3.45 | Ron Darling | 93 | NYN |
| +007+ | 3.42 | Greg Maddux | 104.7 | CHN |
| +011+ | 3.08 | Teddy Higuera | 80 | MIL |
| +012+ | 3.05 | David Cone | 69.7 | NYN |
| +013+ | 2.99 | Greg Swindell | 96.7 | CLE |
| +014+ | 2.99 | Larry McWilliams | 67.3 | SLN |
| +016+ | 2.89 | Orel Hershiser | 95.3 | LAN |
| +021+ | 2.69 | Frank Viola | 95 | MIN |
| +024+ | 2.53 | Kevin Gross | 97 | PHI |
| +027+ | 2.31 | Pascual Perez | 53 | WAS |
| +029+ | 2.28 | John Candelaria | 74.7 | NYA |
| +034+ | 2.21 | Dave LaPoint | 89 | CHA |
| +036+ | 2.16 | Chris Bosio | 95.3 | MIL |
| +039+ | 2.03 | Jim Deshaies | 66.3 | HOU |
| +041+ | 2.02 | Bob Walk | 77.7 | PIT |
| +042+ | 1.97 | Tom Candiotti | 101.7 | CLE |
| +043+ | 1.95 | Dennis Martinez | 82.7 | WAS |
| +045+ | 1.93 | Jeff Russell | 54 | TEX |
| +046+ | 1.92 | Jose Rijo | 54 | CIN |
| +048+ | 1.88 | John Farrell | 91.3 | CLE |
| +049+ | 1.87 | Paul Kilgus | 83.7 | TEX |
| +052+ | 1.82 | Jose Guzman | 92.3 | TEX |
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