| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 8.23 | 199109050_SEA_BOS |
| Tim Belcher | LAN | 4.99 | 199109040_SLN_LAN |
| Jose Rijo | CIN | 4.51 | 199109030_CIN_PHI |
| Jimmy Key | TOR | 2.42 | 199109050_TOR_CLE |
| Mark Langston | ANA | 1.78 | 199109030_ANA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -4.98 | 199109030_OAK_MIL |
| Alex Fernandez | CHA | -3.16 | 199109040_KCA_CHA |
| Jim Deshaies | HOU | -2.3 | 199109040_HOU_NYN |
| Jeff Johnson | NYA | -1.78 | 199109030_NYA_TEX |
| Danny Jackson | CHN | -1.78 | 199109040_CHN_SDN |
Based on accumulated WAA for this season up to 1991-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.28 | Tom Glavine | 205.7 | ATL |
| +003+ | 7.43 | Roger Clemens | 223.3 | BOS |
| +004+ | 7.35 | Tom Candiotti | 202.7 | TOT |
| +014+ | 6 | Pete Harnisch | 184.7 | HOU |
| +015+ | 5.7 | Tim Belcher | 184 | LAN |
| +017+ | 5.3 | Jose Rijo | 164.3 | CIN |
| +018+ | 5.03 | Kevin Tapani | 202.7 | MIN |
| +019+ | 4.94 | Mike Morgan | 194 | LAN |
| +028+ | 4.67 | Jim Abbott | 197.3 | ANA |
| +029+ | 4.55 | Jimmy Key | 180.3 | TOR |
| +031+ | 4.21 | Ramon Martinez | 188.3 | LAN |
| +041+ | 3.99 | Mark Langston | 201.3 | ANA |
| +043+ | 3.91 | Greg Harris | 97.7 | SDN |
| +044+ | 3.89 | Randy Tomlin | 136 | PIT |
| +061+ | 3.43 | Scott Erickson | 169.3 | MIN |
| +063+ | 3.21 | Bruce Hurst | 207 | SDN |
| +064+ | 3.14 | Bob Tewksbury | 158.3 | SLN |
| +066+ | 3.13 | Bret Saberhagen | 162 | KCA |
| +072+ | 2.98 | Bill Wegman | 143.7 | MIL |
| +074+ | 2.91 | Mark Gardner | 142 | WAS |
| +075+ | 2.83 | Luis Aquino | 126.3 | KCA |
| +077+ | 2.8 | Greg Swindell | 200 | CLE |
| +079+ | 2.78 | Jose Guzman | 131 | TEX |
| +080+ | 2.71 | Doug Drabek | 191.7 | PIT |
| +083+ | 2.66 | Andy Benes | 182.7 | SDN |
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