| Starter | Tm | Tier | Game |
|---|---|---|---|
| Orel Hershiser | LAN | 9.63 | 198709180_ATL_LAN |
| 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 |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Browning | CIN | -3.29 | 198709190_CIN_SFN |
| Greg Maddux | CHN | -2.58 | 198709200_CHN_SLN |
| Eric Bell | BAL | -2.44 | 198709202_BOS_BAL |
| Jerry Reuss | ANA | -1.82 | 198709180_ANA_TEX |
| Juan Nieves | MIL | -1.78 | 198709200_MIL_DET |
Based on accumulated WAA for this season up to 1987-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.89 | Orel Hershiser | 245.3 | LAN |
| +004+ | 8.53 | Jimmy Key | 239.7 | TOR |
| +005+ | 8.36 | Rick Reuschel | 218 | TOT |
| +007+ | 7.67 | Frank Viola | 238.3 | MIN |
| +008+ | 7.51 | Nolan Ryan | 191.7 | HOU |
| +010+ | 6.74 | Roger Clemens | 255 | BOS |
| +017+ | 5.91 | Charlie Leibrandt | 224 | KCA |
| +018+ | 5.88 | Bret Saberhagen | 234 | KCA |
| +021+ | 5.47 | Mike Scott | 234 | HOU |
| +023+ | 5.3 | Mike Dunne | 145 | PIT |
| +029+ | 4.77 | Jack Morris | 234 | DET |
| +036+ | 4.58 | Doyle Alexander | 179.7 | TOT |
| +037+ | 4.35 | Dwight Gooden | 159.3 | NYN |
| +042+ | 4.21 | Dave Dravecky | 176.7 | TOT |
| +043+ | 4.17 | Bob Welch | 225.3 | LAN |
| +053+ | 3.72 | Mark Langston | 254 | SEA |
| +056+ | 3.69 | Dave Stewart | 234 | OAK |
| +059+ | 3.41 | Rick Sutcliffe | 215.7 | CHN |
| +064+ | 3.14 | Danny Darwin | 183.7 | HOU |
| +065+ | 3.11 | Charlie Hough | 262.3 | TEX |
| +066+ | 3.11 | Jim Clancy | 223.3 | TOR |
| +070+ | 3.03 | Atlee Hammaker | 152 | SFN |
| +082+ | 2.61 | Teddy Higuera | 239.3 | MIL |
| +087+ | 2.59 | Willie Fraser | 169.7 | ANA |
| +092+ | 2.51 | Dennis Martinez | 132.3 | WAS |
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