| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 15.62 | 198806240_BAL_BOS |
| John Tudor | SLN | 6.42 | 198806230_PHI_SLN |
| Orel Hershiser | LAN | 5.1 | 198806240_LAN_CIN |
| David Cone | NYN | 3.43 | 198806240_NYN_CHN |
| Bob Walk | PIT | 2.84 | 198806240_PIT_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Moore | SEA | -2.73 | 198806240_KCA_SEA |
| Tom Glavine | ATL | -2.36 | 198806250_SDN_ATL |
| Brian Fisher | PIT | -2.14 | 198806230_PIT_WAS |
| Scott Bailes | CLE | -1.33 | 198806230_CLE_NYA |
| Jim Clancy | TOR | -0.86 | 198806230_BAL_TOR |
Based on accumulated WAA for this season up to 1988-06-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 5.08 | John Tudor | 83.3 | SLN |
| +004+ | 4.92 | Greg Maddux | 130.7 | CHN |
| +005+ | 4.42 | David Cone | 95.3 | NYN |
| +006+ | 4.3 | Roger Clemens | 136.7 | BOS |
| +010+ | 3.85 | Frank Viola | 117.7 | MIN |
| +011+ | 3.78 | Teddy Higuera | 102.3 | MIL |
| +012+ | 3.74 | Bob Knepper | 88.3 | HOU |
| +013+ | 3.49 | Bob Walk | 103.3 | PIT |
| +014+ | 3.48 | Ron Darling | 113.3 | NYN |
| +016+ | 3.33 | Orel Hershiser | 119 | LAN |
| +024+ | 3.04 | Pascual Perez | 61 | WAS |
| +027+ | 2.81 | Larry McWilliams | 86.3 | SLN |
| +030+ | 2.7 | Kevin Gross | 120.3 | PHI |
| +031+ | 2.69 | Dave LaPoint | 110.3 | CHA |
| +034+ | 2.66 | Mark Gubicza | 115.7 | KCA |
| +039+ | 2.48 | Paul Kilgus | 104 | TEX |
| +041+ | 2.39 | Dennis Martinez | 111 | WAS |
| +043+ | 2.26 | John Smiley | 103.7 | PIT |
| +044+ | 2.26 | Jeff Russell | 73 | TEX |
| +049+ | 2.06 | John Candelaria | 93 | NYA |
| +053+ | 2.02 | Chris Bosio | 115.3 | MIL |
| +055+ | 2.01 | Jim Deshaies | 85.3 | HOU |
| +056+ | 1.99 | Dave Stieb | 101.7 | TOR |
| +057+ | 1.99 | Rick Reuschel | 96.7 | SFN |
| +058+ | 1.98 | Mike Scott | 109 | HOU |
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