| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 11.22 | 198907090_LAN_CHN |
| Houston Astros | HOU | 3.93 | 198907070_WAS_HOU |
| St. Louis Cardinals | SLN | 3.46 | 198907080_SFN_SLN |
| New York Mets | NYN | 2.38 | 198907070_CIN_NYN |
| New York Yankees | NYA | 1.73 | 198907090_NYA_BOS |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Boston Red Sox | BOS | -6.62 | 198907090_NYA_BOS |
| Chicago White Sox | CHA | -4.92 | 198907090_CHA_KCA |
| Detroit Tigers | DET | -1.77 | 198907090_TOR_DET |
| Seattle Mariners | SEA | -1.24 | 198907080_CLE_SEA |
| Minnesota Twins | MIN | -1.13 | 198907070_MIN_ANA |
Based on accumulated WAA for this season up to 1989-07-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +017+ | 3.66 | Larry Andersen | 54.3 | HOU |
| +018+ | 3.53 | Orel Hershiser | 135 | LAN |
| +026+ | 3.11 | Bill Landrum | 39.3 | PIT |
| +027+ | 3.09 | Jay Howell | 47 | LAN |
| +035+ | 2.88 | Rick Aguilera | 55.7 | NYN |
| +044+ | 2.61 | Jeff Montgomery | 55 | KCA |
| +046+ | 2.6 | Randy Myers | 50 | NYN |
| +054+ | 2.36 | Danny Darwin | 71.7 | HOU |
| +059+ | 2.33 | Lee Guetterman | 57 | NYA |
| +064+ | 2.23 | John Franco | 40.3 | CIN |
| +067+ | 2.12 | Mike Schooler | 43.7 | SEA |
| +070+ | 2.09 | Todd Burns | 60.7 | OAK |
| +071+ | 2.07 | Doug Jones | 40.7 | CLE |
| +072+ | 2.05 | Greg Minton | 45.7 | ANA |
| +074+ | 2.03 | Gregg Olson | 47.7 | BAL |
| +076+ | 2 | Craig Lefferts | 60 | SFN |
| +082+ | 1.96 | Greg Harris | 47.3 | SDN |
| +085+ | 1.86 | Eric Plunk | 40.7 | TOT |
| +091+ | 1.76 | Mitch Williams | 47.3 | CHN |
| +092+ | 1.75 | Rob Murphy | 55 | BOS |
| +099+ | 1.68 | Mark Grant | 56.3 | SDN |
| +098+ | 1.68 | Rob Dibble | 60.7 | CIN |
| +100+ | 1.66 | Jim Acker | 66 | ATL |
| +105+ | 1.57 | Frank DiPino | 50.7 | SLN |
| +107+ | 1.53 | Clay Parker | 48 | NYA |
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