| Starter | Tm | Tier | Game |
|---|---|---|---|
| Orel Hershiser | LAN | 9.63 | 198709180_ATL_LAN |
| Jimmy Key | TOR | 8.24 | 198709160_BAL_TOR |
| Rick Reuschel | SFN | 7.54 | 198709170_HOU_SFN |
| Charlie Leibrandt | KCA | 6.19 | 198709170_ANA_KCA |
| Mike Scott | HOU | 4.28 | 198709160_HOU_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Smithson | MIN | -2.22 | 198709160_MIN_CHA |
| Jerry Reuss | ANA | -1.82 | 198709180_ANA_TEX |
| Darrel Akerfelds | CLE | -1.51 | 198709180_CLE_MIN |
| Jeff Ballard | BAL | -1.22 | 198709182_BOS_BAL |
| Jamie Moyer | CHN | -1.21 | 198709170_CHN_PHI |
Based on accumulated WAA for this season up to 1987-09-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.9 | Orel Hershiser | 245.3 | LAN |
| +004+ | 8.44 | Jimmy Key | 234.7 | TOR |
| +005+ | 8.43 | Rick Reuschel | 218 | TOT |
| +008+ | 6.94 | Frank Viola | 231 | MIN |
| +009+ | 6.9 | Nolan Ryan | 182.7 | HOU |
| +016+ | 5.93 | Charlie Leibrandt | 224 | KCA |
| +017+ | 5.9 | Bret Saberhagen | 234 | KCA |
| +018+ | 5.85 | Roger Clemens | 246 | BOS |
| +023+ | 5.36 | Mike Dunne | 145 | PIT |
| +026+ | 5.08 | Mike Scott | 225 | HOU |
| +033+ | 4.6 | Jack Morris | 228 | DET |
| +036+ | 4.41 | Dwight Gooden | 159.3 | NYN |
| +039+ | 4.25 | Dave Dravecky | 176.7 | TOT |
| +041+ | 4.18 | Bob Welch | 225.3 | LAN |
| +043+ | 4.15 | Doyle Alexander | 171.3 | TOT |
| +051+ | 3.7 | Dave Stewart | 234 | OAK |
| +052+ | 3.7 | Mark Langston | 254 | SEA |
| +057+ | 3.39 | Rick Sutcliffe | 215.7 | CHN |
| +060+ | 3.22 | Danny Darwin | 183.7 | HOU |
| +066+ | 3.1 | Jim Clancy | 223.3 | TOR |
| +067+ | 3.03 | Atlee Hammaker | 152 | SFN |
| +083+ | 2.64 | Dennis Martinez | 127.3 | WAS |
| +086+ | 2.6 | Teddy Higuera | 239.3 | MIL |
| +087+ | 2.59 | Eric Show | 198.7 | SDN |
| +089+ | 2.57 | Charlie Hough | 254.3 | TEX |
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