| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.78 | 199008090_BOS_ANA |
| Frank Viola | NYN | 8.92 | 199008070_PHI_NYN |
| Doug Drabek | PIT | 4.65 | 199008080_WAS_PIT |
| Ramon Martinez | LAN | 3.38 | 199008090_LAN_CIN |
| Dennis Martinez | WAS | 3.1 | 199008080_WAS_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Robinson | DET | -4.51 | 199008090_DET_TOR |
| Mike Bielecki | CHN | -3.06 | 199008070_SLN_CHN |
| Eric Show | SDN | -2.36 | 199008072_SDN_ATL |
| Todd Stottlemyre | TOR | -1.01 | 199008090_DET_TOR |
| Marty Clary | ATL | -0.76 | 199008072_SDN_ATL |
Based on accumulated WAA for this season up to 1990-08-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.8 | Roger Clemens | 183 | BOS |
| +008+ | 5.48 | Dave Stewart | 181.3 | OAK |
| +006+ | 5.48 | Frank Viola | 163.3 | NYN |
| +007+ | 5.48 | Chuck Finley | 161 | ANA |
| +010+ | 4.58 | Danny Darwin | 93.3 | HOU |
| +011+ | 4.56 | John Tudor | 130.3 | SLN |
| +016+ | 4.31 | Ramon Martinez | 161.3 | LAN |
| +018+ | 4.18 | Bill Swift | 87.3 | SEA |
| +028+ | 3.57 | Tom Browning | 169.7 | CIN |
| +033+ | 3.47 | Dennis Martinez | 172.7 | WAS |
| +035+ | 3.29 | Doug Drabek | 156.7 | PIT |
| +043+ | 2.96 | Mark Gardner | 127.7 | WAS |
| +052+ | 2.65 | Tom Candiotti | 146.3 | CLE |
| +053+ | 2.65 | Bob Welch | 159.3 | OAK |
| +058+ | 2.51 | Oil Can Boyd | 129.7 | WAS |
| +060+ | 2.45 | Greg Hibbard | 138.3 | CHA |
| +061+ | 2.44 | Dave Stieb | 133.7 | TOR |
| +065+ | 2.37 | Norm Charlton | 82 | CIN |
| +068+ | 2.28 | Kevin Brown | 168 | TEX |
| +078+ | 2.17 | Ben McDonald | 37.7 | BAL |
| +079+ | 2.14 | Kirk McCaskill | 114.7 | ANA |
| +082+ | 2.13 | Zane Smith | 139.3 | WAS |
| +086+ | 2.03 | Kevin Appier | 113.3 | KCA |
| +092+ | 1.99 | Dennis Cook | 117.7 | PHI |
| +096+ | 1.89 | John Burkett | 136.3 | SFN |
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