| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 7.84 | 198908250_PHI_LAN |
| Montreal Expos | WAS | 4.69 | 198908250_WAS_SFN |
| St. Louis Cardinals | SLN | 1.68 | 198908250_SLN_HOU |
| Oakland Athletics | OAK | 1.28 | 198908250_OAK_KCA |
| Toronto Blue Jays | TOR | 0.96 | 198908270_MIL_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.91 | 198908250_SEA_MIN |
| Houston Astros | HOU | -3.23 | 198908270_SLN_HOU |
| Chicago White Sox | CHA | -3.18 | 198908270_CHA_CLE |
| Chicago Cubs | CHN | -1.21 | 198908250_ATL_CHN |
| Atlanta Braves | ATL | -1.04 | 198908270_ATL_CHN |
Based on accumulated WAA for this season up to 1989-08-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +021+ | 4.55 | Jay Howell | 69 | LAN |
| +027+ | 4.29 | Bryn Smith | 180.3 | WAS |
| +029+ | 4.09 | Jeff Montgomery | 79 | KCA |
| +031+ | 3.93 | Bill Landrum | 66.7 | PIT |
| +042+ | 3.52 | Jeff Parrett | 88.3 | PHI |
| +044+ | 3.47 | Danny Darwin | 106.3 | HOU |
| +050+ | 3.32 | Mike Morgan | 141.7 | LAN |
| +060+ | 3.11 | Rob Dibble | 80.3 | CIN |
| +063+ | 3.05 | Randy Myers | 72 | NYN |
| +070+ | 2.81 | Dennis Martinez | 192.7 | WAS |
| +073+ | 2.77 | Les Lancaster | 44.7 | CHN |
| +075+ | 2.75 | Dennis Eckersley | 39 | OAK |
| +074+ | 2.75 | Todd Burns | 80.3 | OAK |
| +083+ | 2.56 | Craig Lefferts | 90.7 | SFN |
| +082+ | 2.56 | Roger McDowell | 70.7 | TOT |
| +085+ | 2.49 | Mitch Williams | 73.3 | CHN |
| +089+ | 2.46 | Mark Davis | 70 | SDN |
| +090+ | 2.44 | Jeff Russell | 56.7 | TEX |
| +091+ | 2.43 | Jim Acker | 102 | TOT |
| +095+ | 2.39 | Mike Schooler | 63.7 | SEA |
| +097+ | 2.38 | Gregg Olson | 68.7 | BAL |
| +100+ | 2.34 | Lee Guetterman | 87 | NYA |
| +102+ | 2.3 | Rob Murphy | 83 | BOS |
| +103+ | 2.27 | Tom Henke | 67.7 | TOR |
| +106+ | 2.16 | Jesse Orosco | 60.7 | CLE |
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