| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 6.34 | 198908290_NYN_LAN |
| Montreal Expos | WAS | 3.37 | 198908290_WAS_SDN |
| Toronto Blue Jays | TOR | 1.48 | 198908310_CHA_TOR |
| St. Louis Cardinals | SLN | 1.29 | 198908300_CIN_SLN |
| Oakland Athletics | OAK | 1.28 | 198908300_OAK_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -3.06 | 198908290_CHA_TOR |
| Houston Astros | HOU | -2.31 | 198908290_HOU_CHN |
| Atlanta Braves | ATL | -1.75 | 198908290_ATL_PIT |
| San Francisco Giants | SFN | -1.31 | 198908300_PHI_SFN |
| Baltimore Orioles | BAL | -1.1 | 198908310_BAL_CLE |
Based on accumulated WAA for this season up to 1989-08-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +028+ | 4.28 | Jeff Montgomery | 81 | KCA |
| +030+ | 4.17 | Bill Landrum | 69.3 | PIT |
| +036+ | 3.8 | Jeff Parrett | 91.3 | PHI |
| +045+ | 3.5 | Danny Darwin | 106.3 | HOU |
| +046+ | 3.47 | Mike Morgan | 145.7 | LAN |
| +063+ | 3.06 | Randy Myers | 72 | NYN |
| +067+ | 2.95 | Rob Dibble | 83.3 | CIN |
| +068+ | 2.93 | Dennis Eckersley | 41 | OAK |
| +069+ | 2.92 | Roger McDowell | 74.7 | TOT |
| +071+ | 2.86 | Les Lancaster | 45.7 | CHN |
| +074+ | 2.73 | Todd Burns | 82.3 | OAK |
| +079+ | 2.67 | Mark Davis | 72.3 | SDN |
| +081+ | 2.63 | Jim Acker | 104 | TOT |
| +085+ | 2.57 | Gregg Olson | 70.7 | BAL |
| +087+ | 2.54 | Tom Henke | 70.7 | TOR |
| +098+ | 2.38 | Lee Guetterman | 87.3 | NYA |
| +099+ | 2.37 | Mitch Williams | 74.3 | CHN |
| +101+ | 2.35 | Mark Grant | 93 | SDN |
| +103+ | 2.32 | Craig Lefferts | 92.7 | SFN |
| +104+ | 2.31 | Rob Murphy | 85.3 | BOS |
| +105+ | 2.29 | Tim Burke | 76.7 | WAS |
| +106+ | 2.28 | Mike Schooler | 64.7 | SEA |
| +116+ | 2.17 | Jesse Orosco | 60.7 | CLE |
| +120+ | 2.06 | Jeff Russell | 59.3 | TEX |
| +123+ | 1.99 | Alejandro Pena | 63.3 | LAN |
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