| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Key | TOR | 9.56 | 198709290_MIL_TOR |
| Orel Hershiser | LAN | 8.34 | 198709280_LAN_HOU |
| Nolan Ryan | HOU | 6.83 | 198709290_LAN_HOU |
| Roger Clemens | BOS | 6.1 | 198709300_BOS_NYA |
| Jack Morris | DET | 2.98 | 198709280_BAL_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Browning | CIN | -2.37 | 198709300_CIN_SDN |
| Chris Bosio | MIL | -2.31 | 198709290_MIL_TOR |
| Jerry Reuss | ANA | -2 | 198709300_ANA_CHA |
| Eric Bell | BAL | -1.97 | 198709290_BAL_DET |
| Jamie Moyer | CHN | -1.84 | 198709302_CHN_PIT |
Based on accumulated WAA for this season up to 1987-09-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.62 | Jimmy Key | 253.3 | TOR |
| +004+ | 8.35 | Frank Viola | 246.3 | MIN |
| +006+ | 8.05 | Roger Clemens | 273 | BOS |
| +008+ | 7.28 | Nolan Ryan | 204.7 | HOU |
| +010+ | 7 | Orel Hershiser | 257 | LAN |
| +011+ | 6.75 | Rick Reuschel | 221.7 | TOT |
| +016+ | 6.26 | Doyle Alexander | 199.3 | TOT |
| +017+ | 6.19 | Mike Scott | 248.3 | HOU |
| +027+ | 5.47 | Bret Saberhagen | 248 | KCA |
| +029+ | 5.13 | Bob Welch | 242.3 | LAN |
| +032+ | 4.96 | Charlie Leibrandt | 232.7 | KCA |
| +035+ | 4.76 | Jack Morris | 250 | DET |
| +038+ | 4.46 | Dwight Gooden | 180.3 | NYN |
| +039+ | 4.43 | Mike Dunne | 155.7 | PIT |
| +042+ | 4.29 | Jim Clancy | 239.3 | TOR |
| +044+ | 4.18 | Dave Stewart | 257 | OAK |
| +052+ | 3.84 | Dave Dravecky | 186.7 | TOT |
| +058+ | 3.5 | Charlie Hough | 279.3 | TEX |
| +059+ | 3.46 | Rick Sutcliffe | 238.7 | CHN |
| +060+ | 3.45 | Floyd Bannister | 223.3 | CHA |
| +065+ | 3.39 | Danny Darwin | 191 | HOU |
| +066+ | 3.34 | Joe Magrane | 168 | SLN |
| +067+ | 3.33 | Mark Langston | 266.3 | SEA |
| +069+ | 3.27 | Dennis Martinez | 144.7 | WAS |
| +073+ | 3.18 | Pascual Perez | 65.7 | WAS |
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