| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Key | TOR | 8.83 | 198709200_TOR_NYA |
| Nolan Ryan | HOU | 5.93 | 198709190_SDN_HOU |
| Frank Viola | MIN | 5.59 | 198709190_CLE_MIN |
| Roger Clemens | BOS | 4.6 | 198709201_BOS_BAL |
| Bret Saberhagen | KCA | 3.9 | 198709210_KCA_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Schrom | CLE | -4.43 | 198709210_OAK_CLE |
| Tom Browning | CIN | -3.29 | 198709190_CIN_SFN |
| Al Nipper | BOS | -3.08 | 198709210_DET_BOS |
| Greg Maddux | CHN | -2.58 | 198709200_CHN_SLN |
| Eric Bell | BAL | -2.44 | 198709202_BOS_BAL |
Based on accumulated WAA for this season up to 1987-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.87 | Orel Hershiser | 245.3 | LAN |
| +004+ | 8.5 | Jimmy Key | 239.7 | TOR |
| +005+ | 8.33 | Rick Reuschel | 218 | TOT |
| +007+ | 7.64 | Frank Viola | 238.3 | MIN |
| +008+ | 7.49 | Nolan Ryan | 191.7 | HOU |
| +010+ | 6.71 | Roger Clemens | 255 | BOS |
| +017+ | 5.9 | Charlie Leibrandt | 224 | KCA |
| +018+ | 5.85 | Bret Saberhagen | 242 | KCA |
| +021+ | 5.44 | Mike Scott | 234 | HOU |
| +023+ | 5.28 | Mike Dunne | 145 | PIT |
| +029+ | 5.01 | Dwight Gooden | 168.3 | NYN |
| +031+ | 4.76 | Jack Morris | 234 | DET |
| +038+ | 4.56 | Doyle Alexander | 179.7 | TOT |
| +039+ | 4.52 | Bob Welch | 233.3 | LAN |
| +044+ | 4.19 | Dave Dravecky | 176.7 | TOT |
| +053+ | 3.68 | Mark Langston | 254 | SEA |
| +058+ | 3.43 | Dave Stewart | 242 | OAK |
| +059+ | 3.39 | Rick Sutcliffe | 215.7 | CHN |
| +065+ | 3.28 | Atlee Hammaker | 159 | SFN |
| +066+ | 3.11 | Danny Darwin | 183.7 | HOU |
| +070+ | 3.08 | Jim Clancy | 223.3 | TOR |
| +069+ | 3.08 | Charlie Hough | 262.3 | TEX |
| +089+ | 2.58 | Teddy Higuera | 239.3 | MIL |
| +090+ | 2.57 | Willie Fraser | 169.7 | ANA |
| +094+ | 2.49 | Eric Show | 198.7 | SDN |
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