| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 14.34 | 199008250_BOS_TOR |
| Dave Stewart | OAK | 6.97 | 199008250_OAK_DET |
| Dennis Martinez | WAS | 3.91 | 199008240_SDN_WAS |
| Doug Drabek | PIT | 3.72 | 199008240_CIN_PIT |
| Norm Charlton | CIN | 2.4 | 199008250_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Tanana | DET | -9.36 | 199008250_OAK_DET |
| Mike Bielecki | CHN | -3.07 | 199008250_CHN_ATL |
| Jaime Navarro | MIL | -2.35 | 199008230_MIL_NYA |
| David West | MIN | -2.21 | 199008250_MIN_TEX |
| Sergio Valdez | CLE | -1.9 | 199008250_CLE_BAL |
Based on accumulated WAA for this season up to 1990-08-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.65 | Roger Clemens | 208 | BOS |
| +006+ | 5.99 | Ed Whitson | 183 | SDN |
| +007+ | 5.87 | Chuck Finley | 182.3 | ANA |
| +009+ | 5.54 | Dave Stewart | 211 | OAK |
| +010+ | 5.44 | Danny Darwin | 115.3 | HOU |
| +012+ | 4.96 | Frank Viola | 182.3 | NYN |
| +015+ | 4.61 | Dennis Martinez | 197.7 | WAS |
| +018+ | 4.45 | Norm Charlton | 113 | CIN |
| +020+ | 4.31 | Bill Swift | 108 | SEA |
| +023+ | 4.16 | Doug Drabek | 179.3 | PIT |
| +033+ | 3.62 | Ramon Martinez | 181 | LAN |
| +035+ | 3.53 | Bob Welch | 181.7 | OAK |
| +048+ | 3.17 | Dave Stieb | 154.3 | TOR |
| +051+ | 3.1 | Greg Hibbard | 156.3 | CHA |
| +059+ | 2.86 | Bob Tewksbury | 104 | SLN |
| +062+ | 2.81 | Kevin Appier | 132 | KCA |
| +064+ | 2.73 | Tom Candiotti | 169 | CLE |
| +070+ | 2.59 | Mike Morgan | 176.7 | LAN |
| +074+ | 2.48 | Randy Johnson | 171.3 | SEA |
| +073+ | 2.48 | Dave Wells | 139.7 | TOR |
| +075+ | 2.46 | Mark Gardner | 143 | WAS |
| +076+ | 2.46 | Oil Can Boyd | 145.3 | WAS |
| +084+ | 2.23 | Zane Smith | 161.3 | TOT |
| +089+ | 2.13 | Kirk McCaskill | 133.7 | ANA |
| +096+ | 2.03 | Matt Young | 173.3 | SEA |
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