| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 3.99 | 198906160_HOU_SDN |
| New York Mets | NYN | 2.49 | 198906160_NYN_PHI |
| Cincinnati Reds | CIN | 2.06 | 198906170_CIN_SFN |
| St. Louis Cardinals | SLN | 1.91 | 198906180_PIT_SLN |
| Oakland Athletics | OAK | 1.32 | 198906161_OAK_BAL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -3.89 | 198906160_BOS_CHA |
| Pittsburgh Pirates | PIT | -2.88 | 198906170_PIT_SLN |
| Boston Red Sox | BOS | -2.18 | 198906160_BOS_CHA |
| Minnesota Twins | MIN | -2.1 | 198906160_MIL_MIN |
| Philadelphia Phillies | PHI | -1.7 | 198906160_NYN_PHI |
Based on accumulated WAA for this season up to 1989-06-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +018+ | 2.92 | Larry Andersen | 41.3 | HOU |
| +031+ | 2.63 | Rick Aguilera | 41 | NYN |
| +033+ | 2.59 | Lee Guetterman | 46 | NYA |
| +034+ | 2.53 | Jay Howell | 41 | LAN |
| +045+ | 2.24 | Randy Myers | 41.3 | NYN |
| +049+ | 2.2 | Todd Burns | 49.7 | OAK |
| +051+ | 2.16 | Greg Minton | 39.7 | ANA |
| +053+ | 2.14 | John Franco | 35 | CIN |
| +055+ | 2.11 | Bill Landrum | 27.7 | PIT |
| +060+ | 2 | Craig Lefferts | 48.7 | SFN |
| +059+ | 2 | Greg Harris | 38.3 | SDN |
| +067+ | 1.85 | Rob Dibble | 46.3 | CIN |
| +074+ | 1.66 | Mike LaCoss | 44.7 | SFN |
| +078+ | 1.6 | Jeff Russell | 30.7 | TEX |
| +077+ | 1.6 | Frank DiPino | 34.3 | SLN |
| +079+ | 1.58 | Pat Perry | 35.7 | CHN |
| +083+ | 1.52 | Jeff Montgomery | 37.7 | KCA |
| +088+ | 1.44 | Jose Alvarez | 46.7 | ATL |
| +091+ | 1.42 | Gregg Olson | 39 | BAL |
| +095+ | 1.37 | Mike Schooler | 32.7 | SEA |
| +099+ | 1.31 | Rich Gossage | 23 | SFN |
| +101+ | 1.29 | Rob Murphy | 40.3 | BOS |
| +102+ | 1.28 | Bob McClure | 17.3 | ANA |
| +104+ | 1.26 | Rick Honeycutt | 34 | OAK |
| XXXXX | 1.2 | Jesse Orosco | 21 | CLE |
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