| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Key | TOR | 9.56 | 198709290_MIL_TOR |
| Nolan Ryan | HOU | 6.83 | 198709290_LAN_HOU |
| Roger Clemens | BOS | 6.1 | 198709300_BOS_NYA |
| Rick Reuschel | SFN | 5.37 | 198710010_SFN_LAN |
| Bob Welch | LAN | 3.13 | 198710010_SFN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Browning | CIN | -2.37 | 198709300_CIN_SDN |
| Al Nipper | BOS | -2.35 | 198710010_BOS_NYA |
| Chris Bosio | MIL | -2.31 | 198709290_MIL_TOR |
| Jerry Reuss | ANA | -2 | 198709300_ANA_CHA |
| Eric Bell | BAL | -1.97 | 198709290_BAL_DET |
Based on accumulated WAA for this season up to 1987-10-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.63 | Jimmy Key | 253.3 | TOR |
| +004+ | 8.36 | Frank Viola | 246.3 | MIN |
| +006+ | 8.06 | Roger Clemens | 273 | BOS |
| +008+ | 7.28 | Nolan Ryan | 204.7 | HOU |
| +010+ | 7.02 | Orel Hershiser | 257 | LAN |
| +014+ | 6.27 | Doyle Alexander | 199.3 | TOT |
| +018+ | 6.2 | Mike Scott | 248.3 | HOU |
| +017+ | 6.2 | Rick Reuschel | 226.7 | TOT |
| +021+ | 6.04 | Bob Welch | 251.3 | LAN |
| +028+ | 5.48 | Bret Saberhagen | 248 | KCA |
| +032+ | 4.97 | Charlie Leibrandt | 232.7 | KCA |
| +036+ | 4.77 | Jack Morris | 250 | DET |
| +038+ | 4.47 | Dwight Gooden | 180.3 | NYN |
| +039+ | 4.43 | Mike Dunne | 155.7 | PIT |
| +042+ | 4.3 | Jim Clancy | 239.3 | TOR |
| +044+ | 4.19 | Dave Stewart | 257 | OAK |
| +052+ | 3.86 | Dave Dravecky | 186.7 | TOT |
| +058+ | 3.52 | Charlie Hough | 279.3 | TEX |
| +059+ | 3.49 | Rick Sutcliffe | 238.7 | CHN |
| +060+ | 3.46 | Floyd Bannister | 223.3 | CHA |
| +065+ | 3.35 | Joe Magrane | 168 | SLN |
| +066+ | 3.34 | Mark Langston | 266.3 | SEA |
| +069+ | 3.29 | Dennis Martinez | 144.7 | WAS |
| +070+ | 3.26 | Danny Darwin | 196 | HOU |
| +075+ | 3.18 | Pascual Perez | 65.7 | WAS |
_