| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 4.28 | 198905260_NYN_LAN |
| Cincinnati Reds | CIN | 2.46 | 198905270_CIN_CHN |
| Oakland Athletics | OAK | 1.79 | 198905270_OAK_NYA |
| Montreal Expos | WAS | 1.51 | 198905280_WAS_SDN |
| Houston Astros | HOU | 1.14 | 198905280_HOU_PIT |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -9.86 | 198905260_CHA_TOR |
| Pittsburgh Pirates | PIT | -1.31 | 198905260_HOU_PIT |
| Cleveland Indians | CLE | -1.26 | 198905280_BAL_CLE |
| Minnesota Twins | MIN | -1.11 | 198905260_TEX_MIN |
| Boston Red Sox | BOS | -1.01 | 198905260_ANA_BOS |
Based on accumulated WAA for this season up to 1989-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +026+ | 2.03 | Larry Andersen | 27.3 | HOU |
| +030+ | 1.95 | Lee Guetterman | 34.3 | NYA |
| +034+ | 1.91 | Jay Howell | 28 | LAN |
| +033+ | 1.91 | Rick Aguilera | 30.3 | NYN |
| +037+ | 1.87 | Randy Myers | 27.3 | NYN |
| +049+ | 1.67 | Greg Minton | 29.7 | ANA |
| +050+ | 1.66 | Craig Lefferts | 35 | SFN |
| +059+ | 1.52 | Danny Darwin | 41.7 | HOU |
| +065+ | 1.4 | Norm Charlton | 21.7 | CIN |
| +069+ | 1.36 | Pat Perry | 23.3 | CHN |
| +075+ | 1.29 | Greg Harris | 22.7 | SDN |
| +076+ | 1.28 | John Franco | 25.3 | CIN |
| XXXXX | 1.2 | Jose Alvarez | 32 | ATL |
| XXXXX | 1.15 | Randy Kramer | 26.3 | PIT |
| XXXXX | 1.11 | Cecilio Guante | 28 | TEX |
| XXXXX | 1.03 | Eric Plunk | 19.3 | OAK |
| XXXXX | 1.02 | Mark Davis | 29.3 | SDN |
| XXXXX | 1.01 | Frank DiPino | 27.7 | SLN |
| XXXXX | 1.01 | Rich Gossage | 14.7 | SFN |
| XXXXX | 1.01 | Jeff Russell | 24.3 | TEX |
| XXXXX | 0.99 | Tom Gordon | 39.3 | KCA |
| XXXXX | 0.98 | Dennis Eckersley | 18.7 | OAK |
| XXXXX | 0.96 | Kenny Rogers | 23.7 | TEX |
| XXXXX | 0.95 | Terry Leach | 16.3 | NYN |
| XXXXX | 0.94 | Paul Assenmacher | 21.3 | ATL |
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