| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 7.36 | 198908260_PHI_LAN |
| Montreal Expos | WAS | 4.69 | 198908260_WAS_SFN |
| St. Louis Cardinals | SLN | 1.46 | 198908260_SLN_HOU |
| Oakland Athletics | OAK | 1.13 | 198908260_OAK_KCA |
| Toronto Blue Jays | TOR | 0.99 | 198908280_MIL_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.81 | 198908260_SEA_MIN |
| Houston Astros | HOU | -3.23 | 198908270_SLN_HOU |
| Chicago White Sox | CHA | -3.18 | 198908270_CHA_CLE |
| Atlanta Braves | ATL | -1.65 | 198908280_ATL_PIT |
| San Francisco Giants | SFN | -1.22 | 198908280_PHI_SFN |
Based on accumulated WAA for this season up to 1989-08-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +021+ | 4.55 | Jay Howell | 69 | LAN |
| +026+ | 4.3 | Bryn Smith | 180.3 | WAS |
| +028+ | 4.09 | Jeff Montgomery | 79 | KCA |
| +031+ | 3.93 | Bill Landrum | 66.7 | PIT |
| +043+ | 3.6 | Jeff Parrett | 89.3 | PHI |
| +045+ | 3.48 | Danny Darwin | 106.3 | HOU |
| +052+ | 3.32 | Mike Morgan | 141.7 | LAN |
| +063+ | 3.05 | Randy Myers | 72 | NYN |
| +068+ | 2.92 | Dennis Eckersley | 41 | OAK |
| +071+ | 2.82 | Dennis Martinez | 192.7 | WAS |
| +073+ | 2.78 | Todd Burns | 80.7 | OAK |
| +074+ | 2.77 | Les Lancaster | 44.7 | CHN |
| +075+ | 2.76 | Rob Dibble | 81 | CIN |
| +078+ | 2.66 | Mark Davis | 72.3 | SDN |
| +083+ | 2.56 | Roger McDowell | 70.7 | TOT |
| +084+ | 2.56 | Craig Lefferts | 90.7 | SFN |
| +087+ | 2.49 | Mitch Williams | 73.3 | CHN |
| +090+ | 2.44 | Jeff Russell | 56.7 | TEX |
| +091+ | 2.43 | Jim Acker | 102 | TOT |
| +093+ | 2.38 | Gregg Olson | 68.7 | BAL |
| +094+ | 2.37 | Lee Guetterman | 87.3 | NYA |
| +100+ | 2.29 | Rob Murphy | 85.3 | BOS |
| +101+ | 2.27 | Tom Henke | 67.7 | TOR |
| +104+ | 2.24 | Mike Schooler | 64.3 | SEA |
| +106+ | 2.16 | Jesse Orosco | 60.7 | CLE |
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