| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Cardinals | SLN | 3.19 | 198905160_SLN_HOU |
| Oakland Athletics | OAK | 2.85 | 198905150_MIL_OAK |
| Cincinnati Reds | CIN | 2.35 | 198905170_PIT_CIN |
| New York Mets | NYN | 1.57 | 198905150_LAN_NYN |
| San Francisco Giants | SFN | 1.49 | 198905150_SFN_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Toronto Blue Jays | TOR | -4.65 | 198905150_CLE_TOR |
| Boston Red Sox | BOS | -2.64 | 198905170_BOS_ANA |
| Cleveland Indians | CLE | -2.17 | 198905170_CLE_TOR |
| Minnesota Twins | MIN | -2.12 | 198905150_KCA_MIN |
| Baltimore Orioles | BAL | -1.93 | 198905170_BAL_TEX |
Based on accumulated WAA for this season up to 1989-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +009+ | 2.29 | Lee Guetterman | 26 | NYA |
| +035+ | 1.63 | Larry Andersen | 19.7 | HOU |
| +043+ | 1.53 | Jose Alvarez | 27 | ATL |
| +045+ | 1.5 | Craig Lefferts | 28 | SFN |
| +050+ | 1.42 | Jay Howell | 22 | LAN |
| +057+ | 1.32 | Randy Myers | 20.7 | NYN |
| +059+ | 1.31 | Greg Minton | 25.3 | ANA |
| XXXXX | 1.22 | Danny Darwin | 32.3 | HOU |
| XXXXX | 1.16 | Norm Charlton | 18.7 | CIN |
| XXXXX | 1.14 | Rick Aguilera | 21 | NYN |
| XXXXX | 1.13 | Jeff Pico | 25.3 | CHN |
| XXXXX | 1.12 | Dennis Powell | 20 | SEA |
| XXXXX | 1.1 | Gene Nelson | 12.7 | OAK |
| XXXXX | 1.07 | Jeff Russell | 17.3 | TEX |
| XXXXX | 1.03 | Pat Perry | 19.3 | CHN |
| XXXXX | 1 | Greg Harris | 16.7 | SDN |
| XXXXX | 0.97 | Dennis Eckersley | 16 | OAK |
| XXXXX | 0.94 | Todd Burns | 23 | OAK |
| XXXXX | 0.91 | Bobby Thigpen | 18 | CHA |
| XXXXX | 0.88 | John Franco | 20.3 | CIN |
| XXXXX | 0.88 | Mark Davis | 27.7 | SDN |
| XXXXX | 0.87 | Paul Assenmacher | 14.7 | ATL |
| XXXXX | 0.85 | Rick Honeycutt | 22 | OAK |
| XXXXX | 0.85 | Rich Gossage | 12.7 | SFN |
| XXXXX | 0.82 | Don Aase | 14.7 | NYN |
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