| 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 | 1.98 | 198908240_SLN_ATL |
| Oakland Athletics | OAK | 1.61 | 198908240_OAK_TEX |
| Toronto Blue Jays | TOR | 0.86 | 198908240_DET_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.91 | 198908250_SEA_MIN |
| Chicago White Sox | CHA | -3.11 | 198908250_CHA_CLE |
| Houston Astros | HOU | -2.96 | 198908260_SLN_HOU |
| Chicago Cubs | CHN | -1.21 | 198908250_ATL_CHN |
| Baltimore Orioles | BAL | -1.12 | 198908241_BAL_NYA |
Based on accumulated WAA for this season up to 1989-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 4.55 | Jay Howell | 69 | LAN |
| +027+ | 4.29 | Bryn Smith | 173 | WAS |
| +029+ | 4.09 | Jeff Montgomery | 79 | KCA |
| +033+ | 3.75 | Bill Landrum | 64.7 | PIT |
| +041+ | 3.5 | Jeff Parrett | 88.3 | PHI |
| +042+ | 3.47 | Danny Darwin | 106.3 | HOU |
| +050+ | 3.31 | Mike Morgan | 141.7 | LAN |
| +058+ | 3.11 | Rob Dibble | 80.3 | CIN |
| +064+ | 2.95 | Randy Myers | 71 | NYN |
| +071+ | 2.79 | Dennis Martinez | 192.7 | WAS |
| +072+ | 2.75 | Todd Burns | 80.3 | OAK |
| +074+ | 2.71 | Craig Lefferts | 90 | SFN |
| +078+ | 2.66 | Dennis Eckersley | 38 | OAK |
| +079+ | 2.63 | Les Lancaster | 43 | CHN |
| +082+ | 2.55 | Roger McDowell | 70.7 | TOT |
| +089+ | 2.45 | Mark Davis | 70 | SDN |
| +094+ | 2.38 | Gregg Olson | 68.7 | BAL |
| +092+ | 2.38 | Jeff Russell | 56 | TEX |
| +096+ | 2.32 | Mitch Williams | 71.3 | CHN |
| +098+ | 2.3 | Mike Schooler | 62.7 | SEA |
| +099+ | 2.26 | Tom Henke | 67.7 | TOR |
| +100+ | 2.21 | Rob Murphy | 82 | BOS |
| +103+ | 2.17 | Jim Acker | 99 | TOT |
| +105+ | 2.16 | Lee Guetterman | 85 | NYA |
| +106+ | 2.15 | Jesse Orosco | 60.7 | CLE |
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