| Starter | Tm | Tier | Game |
|---|---|---|---|
| Orel Hershiser | LAN | 9.63 | 198709180_ATL_LAN |
| Rick Reuschel | SFN | 7.54 | 198709170_HOU_SFN |
| Charlie Leibrandt | KCA | 6.19 | 198709170_ANA_KCA |
| Nolan Ryan | HOU | 5.93 | 198709190_SDN_HOU |
| Frank Viola | MIN | 5.59 | 198709190_CLE_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Browning | CIN | -3.29 | 198709190_CIN_SFN |
| Jerry Reuss | ANA | -1.82 | 198709180_ANA_TEX |
| Darrel Akerfelds | CLE | -1.51 | 198709180_CLE_MIN |
| Chris Bosio | MIL | -1.49 | 198709190_MIL_DET |
| Jeff Ballard | BAL | -1.22 | 198709182_BOS_BAL |
Based on accumulated WAA for this season up to 1987-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.9 | Orel Hershiser | 245.3 | LAN |
| +004+ | 8.46 | Jimmy Key | 234.7 | TOR |
| +005+ | 8.43 | Rick Reuschel | 218 | TOT |
| +006+ | 7.68 | Frank Viola | 238.3 | MIN |
| +008+ | 7.52 | Nolan Ryan | 191.7 | HOU |
| +016+ | 5.92 | Charlie Leibrandt | 224 | KCA |
| +017+ | 5.9 | Bret Saberhagen | 234 | KCA |
| +018+ | 5.85 | Roger Clemens | 246 | BOS |
| +022+ | 5.36 | Mike Dunne | 145 | PIT |
| +026+ | 4.99 | Mike Scott | 225 | HOU |
| +033+ | 4.59 | Jack Morris | 228 | DET |
| +035+ | 4.58 | Doyle Alexander | 179.7 | TOT |
| +037+ | 4.41 | Dwight Gooden | 159.3 | NYN |
| +040+ | 4.22 | Dave Dravecky | 176.7 | TOT |
| +042+ | 4.18 | Bob Welch | 225.3 | LAN |
| +049+ | 3.72 | Mark Langston | 254 | SEA |
| +050+ | 3.7 | Dave Stewart | 234 | OAK |
| +058+ | 3.41 | Rick Sutcliffe | 215.7 | CHN |
| +065+ | 3.14 | Danny Darwin | 183.7 | HOU |
| +066+ | 3.12 | Jim Clancy | 223.3 | TOR |
| +068+ | 3.04 | Atlee Hammaker | 152 | SFN |
| +083+ | 2.62 | Teddy Higuera | 239.3 | MIL |
| +089+ | 2.55 | Charlie Hough | 254.3 | TEX |
| +091+ | 2.51 | Dennis Martinez | 132.3 | WAS |
| +092+ | 2.51 | Eric Show | 198.7 | SDN |
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