| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 15.86 | 199008300_BOS_CLE |
| Dave Stewart | OAK | 5.2 | 199008300_KCA_OAK |
| Dennis Martinez | WAS | 3.86 | 199008290_SFN_WAS |
| Doug Drabek | PIT | 3.24 | 199008290_PIT_ATL |
| Ramon Martinez | LAN | 2.09 | 199008300_LAN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Tanana | DET | -10.34 | 199008300_DET_SEA |
| Mike Bielecki | CHN | -3.49 | 199008300_CIN_CHN |
| David West | MIN | -2.82 | 199008300_CHA_MIN |
| Jim Abbott | ANA | -2.05 | 199008290_TEX_ANA |
| Sergio Valdez | CLE | -1.83 | 199008300_BOS_CLE |
Based on accumulated WAA for this season up to 1990-08-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.99 | Roger Clemens | 217 | BOS |
| +005+ | 6.55 | Ed Whitson | 191.7 | SDN |
| +007+ | 5.81 | Danny Darwin | 124.3 | HOU |
| +008+ | 5.76 | Chuck Finley | 188.7 | ANA |
| +011+ | 5.29 | Dave Stewart | 218 | OAK |
| +013+ | 5.14 | Frank Viola | 189.3 | NYN |
| +016+ | 4.72 | Doug Drabek | 185.3 | PIT |
| +019+ | 4.43 | Norm Charlton | 113 | CIN |
| +022+ | 4.29 | Bill Swift | 108 | SEA |
| +024+ | 4.26 | Dennis Martinez | 203.7 | WAS |
| +033+ | 3.78 | Ramon Martinez | 188 | LAN |
| +037+ | 3.6 | Kevin Appier | 141 | KCA |
| +041+ | 3.43 | Bob Tewksbury | 113 | SLN |
| +040+ | 3.43 | Greg Hibbard | 164.7 | CHA |
| +054+ | 2.92 | Dave Stieb | 161.3 | TOR |
| +055+ | 2.9 | Kirk McCaskill | 142.7 | ANA |
| +064+ | 2.76 | Tom Browning | 190.7 | CIN |
| +063+ | 2.76 | Mark Gardner | 149 | WAS |
| +066+ | 2.66 | Bob Welch | 186.3 | OAK |
| +072+ | 2.55 | Mike Morgan | 176.7 | LAN |
| +074+ | 2.51 | Greg Harris | 148.3 | BOS |
| +076+ | 2.45 | Dave Wells | 139.7 | TOR |
| +084+ | 2.25 | Greg Maddux | 189.7 | CHN |
| +088+ | 2.2 | Zane Smith | 161.3 | TOT |
| +089+ | 2.15 | Oil Can Boyd | 151.7 | WAS |
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