| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Key | TOR | 8.3 | 198710040_TOR_DET |
| Frank Viola | MIN | 7.9 | 198710020_MIN_KCA |
| Roger Clemens | BOS | 7.08 | 198710040_MIL_BOS |
| Nolan Ryan | HOU | 5.99 | 198710040_CIN_HOU |
| Orel Hershiser | LAN | 5.69 | 198710030_LAN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Schrom | CLE | -4.73 | 198710030_CLE_ANA |
| Eric Bell | BAL | -2.61 | 198710040_BAL_NYA |
| Greg Maddux | CHN | -2.44 | 198710020_CHN_WAS |
| Chris Bosio | MIL | -1.89 | 198710040_MIL_BOS |
| Jeff Sellers | BOS | -1.83 | 198710020_MIL_BOS |
Based on accumulated WAA for this season up to 1987-10-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.16 | Jimmy Key | 261.3 | TOR |
| +004+ | 8.84 | Roger Clemens | 282 | BOS |
| +005+ | 8.54 | Frank Viola | 252.3 | MIN |
| +007+ | 7.57 | Orel Hershiser | 265 | LAN |
| +008+ | 7.51 | Nolan Ryan | 211.7 | HOU |
| +015+ | 6.29 | Doyle Alexander | 206.3 | TOT |
| +019+ | 6.15 | Rick Reuschel | 226.7 | TOT |
| +020+ | 6.14 | Mike Scott | 248.3 | HOU |
| +023+ | 6 | Bob Welch | 251.3 | LAN |
| +024+ | 5.91 | Bret Saberhagen | 257 | KCA |
| +029+ | 5.2 | Charlie Leibrandt | 239.7 | KCA |
| +031+ | 5.14 | Jack Morris | 259 | DET |
| +035+ | 4.78 | Mike Dunne | 163.7 | PIT |
| +039+ | 4.45 | Dwight Gooden | 180.3 | NYN |
| +046+ | 4.02 | Jim Clancy | 241.3 | TOR |
| +057+ | 3.76 | Dave Stewart | 261.7 | OAK |
| +059+ | 3.67 | Floyd Bannister | 228.3 | CHA |
| +062+ | 3.6 | Dave Dravecky | 191 | TOT |
| +064+ | 3.49 | Charlie Hough | 286 | TEX |
| +065+ | 3.47 | Rick Sutcliffe | 238.7 | CHN |
| +066+ | 3.46 | Mark Langston | 272.3 | SEA |
| +071+ | 3.26 | Dennis Martinez | 144.7 | WAS |
| +072+ | 3.25 | Pascual Perez | 70.7 | WAS |
| +075+ | 3.22 | Danny Darwin | 196 | HOU |
| +086+ | 2.87 | Mitch Williams | 109 | TEX |
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