| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 6.48 | 198908280_NYN_LAN |
| Montreal Expos | WAS | 4.16 | 198908270_WAS_SFN |
| St. Louis Cardinals | SLN | 1.27 | 198908270_SLN_HOU |
| Oakland Athletics | OAK | 1.02 | 198908290_OAK_NYA |
| Toronto Blue Jays | TOR | 0.99 | 198908280_MIL_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -3.23 | 198908270_SLN_HOU |
| Chicago White Sox | CHA | -3.18 | 198908270_CHA_CLE |
| Minnesota Twins | MIN | -2.96 | 198908270_SEA_MIN |
| Atlanta Braves | ATL | -1.75 | 198908290_ATL_PIT |
| San Francisco Giants | SFN | -1.22 | 198908280_PHI_SFN |
Based on accumulated WAA for this season up to 1989-08-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 4.56 | Jay Howell | 69 | LAN |
| +026+ | 4.34 | Bryn Smith | 180.3 | WAS |
| +029+ | 4.11 | Jeff Montgomery | 79 | KCA |
| +030+ | 4.08 | Bill Landrum | 68.3 | PIT |
| +042+ | 3.62 | Jeff Parrett | 89.3 | PHI |
| +046+ | 3.52 | Mike Morgan | 143.7 | LAN |
| +049+ | 3.5 | Danny Darwin | 106.3 | HOU |
| +064+ | 3.06 | Randy Myers | 72 | NYN |
| +068+ | 2.93 | Dennis Eckersley | 41 | OAK |
| +070+ | 2.86 | Dennis Martinez | 192.7 | WAS |
| +071+ | 2.86 | Les Lancaster | 45.7 | CHN |
| +073+ | 2.8 | Todd Burns | 80.7 | OAK |
| +074+ | 2.78 | Rob Dibble | 81 | CIN |
| +076+ | 2.74 | Roger McDowell | 72.7 | TOT |
| +078+ | 2.67 | Mark Davis | 72.3 | SDN |
| +081+ | 2.63 | Jeff Russell | 58.7 | TEX |
| +086+ | 2.5 | Mitch Williams | 73.3 | CHN |
| +091+ | 2.46 | Jim Acker | 102 | TOT |
| +092+ | 2.45 | Tom Henke | 69.7 | TOR |
| +096+ | 2.4 | Gregg Olson | 68.7 | BAL |
| +097+ | 2.39 | Lee Guetterman | 87.3 | NYA |
| +099+ | 2.31 | Rob Murphy | 85.3 | BOS |
| +102+ | 2.29 | Tim Burke | 76.7 | WAS |
| +103+ | 2.27 | Mike Schooler | 64.7 | SEA |
| +109+ | 2.24 | Craig Lefferts | 91.7 | SFN |
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