| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 5.4 | 198907290_SFN_HOU |
| Los Angeles Dodgers | LAN | 5.21 | 198907280_LAN_SDN |
| St. Louis Cardinals | SLN | 4.83 | 198907280_SLN_WAS |
| Oakland Athletics | OAK | 2.04 | 198907290_SEA_OAK |
| Philadelphia Phillies | PHI | 1.64 | 198907290_PIT_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -3.31 | 198907280_CHA_ANA |
| Detroit Tigers | DET | -2.74 | 198907290_MIN_DET |
| Boston Red Sox | BOS | -2.27 | 198907281_BOS_CLE |
| Seattle Mariners | SEA | -2.17 | 198907290_SEA_OAK |
| Atlanta Braves | ATL | -1.37 | 198907280_CIN_ATL |
Based on accumulated WAA for this season up to 1989-07-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +023+ | 3.73 | Larry Andersen | 61.7 | HOU |
| +024+ | 3.69 | Bill Landrum | 50.3 | PIT |
| +026+ | 3.61 | Jay Howell | 54.7 | LAN |
| +027+ | 3.55 | Jeff Montgomery | 67.7 | KCA |
| +036+ | 3.25 | Mike Morgan | 129.3 | LAN |
| +046+ | 2.98 | Danny Darwin | 87.7 | HOU |
| +052+ | 2.67 | Randy Myers | 57.3 | NYN |
| +055+ | 2.59 | Mitch Williams | 56.3 | CHN |
| +058+ | 2.51 | Craig Lefferts | 72.7 | SFN |
| +059+ | 2.49 | Todd Burns | 72 | OAK |
| +061+ | 2.45 | Rick Aguilera | 69.3 | NYN |
| +066+ | 2.39 | Roger McDowell | 58.7 | TOT |
| +070+ | 2.34 | Rob Murphy | 68.3 | BOS |
| +075+ | 2.23 | Jeff Parrett | 66 | PHI |
| +083+ | 2.13 | Mike Schooler | 50.7 | SEA |
| +085+ | 2.11 | Luis Aquino | 94.7 | KCA |
| +088+ | 2.06 | Les Lancaster | 23.7 | CHN |
| +090+ | 2.01 | Jim Acker | 79.7 | ATL |
| +092+ | 1.98 | Jeff Russell | 44 | TEX |
| +097+ | 1.94 | Greg Minton | 56.3 | ANA |
| +101+ | 1.91 | Rob Dibble | 63.3 | CIN |
| +106+ | 1.88 | Todd Worrell | 36.3 | SLN |
| +108+ | 1.87 | Donn Pall | 64 | CHA |
| +110+ | 1.85 | Mark Davis | 53 | SDN |
| +113+ | 1.78 | Dennis Eckersley | 27.7 | OAK |
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