| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 3.98 | 198906290_HOU_WAS |
| New York Mets | NYN | 2.25 | 198906300_NYN_CIN |
| Los Angeles Dodgers | LAN | 1.35 | 198906290_SDN_LAN |
| St. Louis Cardinals | SLN | 1.34 | 198906300_SDN_SLN |
| New York Yankees | NYA | 1.27 | 198906300_MIL_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -7.44 | 198906300_KCA_CHA |
| Boston Red Sox | BOS | -3.45 | 198906300_BOS_TOR |
| Minnesota Twins | MIN | -2.03 | 198906300_ANA_MIN |
| Pittsburgh Pirates | PIT | -1.03 | 198906280_PIT_CHN |
| Seattle Mariners | SEA | -0.68 | 198906290_SEA_TEX |
Based on accumulated WAA for this season up to 1989-06-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +016+ | 3.36 | Larry Andersen | 45.7 | HOU |
| +026+ | 2.98 | Jay Howell | 46 | LAN |
| +033+ | 2.86 | Bill Landrum | 36.3 | PIT |
| +038+ | 2.69 | Rick Aguilera | 48.7 | NYN |
| +040+ | 2.56 | Todd Burns | 56 | OAK |
| +048+ | 2.45 | Randy Myers | 48.3 | NYN |
| +051+ | 2.35 | Jeff Montgomery | 47 | KCA |
| +059+ | 2.09 | Lee Guetterman | 49.3 | NYA |
| +063+ | 2.01 | Mike Schooler | 39.7 | SEA |
| +064+ | 2 | Rob Dibble | 54.7 | CIN |
| +068+ | 1.97 | John Franco | 37.3 | CIN |
| +071+ | 1.88 | Gregg Olson | 43.7 | BAL |
| +078+ | 1.75 | Craig Lefferts | 54.7 | SFN |
| +080+ | 1.73 | Danny Darwin | 64 | HOU |
| +081+ | 1.72 | Dan Schatzeder | 36 | HOU |
| +085+ | 1.68 | Greg Harris | 44.3 | SDN |
| +086+ | 1.68 | Rick Honeycutt | 41 | OAK |
| +089+ | 1.62 | Frank Williams | 55.7 | DET |
| +097+ | 1.53 | Eric Plunk | 34.3 | TOT |
| +102+ | 1.46 | Doug Jones | 33.3 | CLE |
| +104+ | 1.42 | Bob Kipper | 54 | PIT |
| +111+ | 1.34 | Mitch Williams | 42.3 | CHN |
| +114+ | 1.33 | Todd Worrell | 28 | SLN |
| +115+ | 1.33 | Dan Quisenberry | 40.3 | SLN |
| +116+ | 1.29 | Dave Righetti | 38 | NYA |
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