| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 4.89 | 198907300_SFN_HOU |
| Los Angeles Dodgers | LAN | 4.44 | 198907300_LAN_SDN |
| St. Louis Cardinals | SLN | 2.38 | 198907300_SLN_WAS |
| Philadelphia Phillies | PHI | 1.56 | 198907300_PIT_PHI |
| Oakland Athletics | OAK | 1.29 | 198907310_CHA_OAK |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -5.9 | 198908010_TEX_DET |
| Seattle Mariners | SEA | -4.17 | 198907310_ANA_SEA |
| Chicago White Sox | CHA | -3.27 | 198907300_CHA_ANA |
| Baltimore Orioles | BAL | -2.41 | 198907310_BAL_BOS |
| San Diego Padres | SDN | -0.75 | 198907300_LAN_SDN |
Based on accumulated WAA for this season up to 1989-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 3.98 | Larry Andersen | 64.7 | HOU |
| +025+ | 3.84 | Bill Landrum | 52.3 | PIT |
| +030+ | 3.61 | Jay Howell | 54.7 | LAN |
| +031+ | 3.54 | Jeff Montgomery | 67.7 | KCA |
| +037+ | 3.24 | Mike Morgan | 129.3 | LAN |
| +047+ | 2.98 | Danny Darwin | 87.7 | HOU |
| +051+ | 2.76 | Craig Lefferts | 75.7 | SFN |
| +052+ | 2.76 | Randy Myers | 58.3 | NYN |
| +053+ | 2.73 | Mitch Williams | 58 | CHN |
| +061+ | 2.51 | Todd Burns | 72.3 | OAK |
| +063+ | 2.48 | Rob Murphy | 70 | BOS |
| +064+ | 2.47 | Roger McDowell | 59.7 | TOT |
| +065+ | 2.45 | Rick Aguilera | 69.3 | NYN |
| +069+ | 2.4 | Jeff Parrett | 68 | PHI |
| +077+ | 2.26 | Les Lancaster | 26 | CHN |
| +081+ | 2.22 | Mike Schooler | 51.7 | SEA |
| +089+ | 2.06 | Jeff Russell | 45 | TEX |
| +092+ | 1.96 | Rob Dibble | 64 | CIN |
| +093+ | 1.96 | Todd Worrell | 37.3 | SLN |
| +097+ | 1.92 | Mark Davis | 54 | SDN |
| +098+ | 1.92 | Dennis Eckersley | 29.3 | OAK |
| +104+ | 1.88 | Donn Pall | 64 | CHA |
| +109+ | 1.85 | Jesse Orosco | 45 | CLE |
| +111+ | 1.84 | Rick Honeycutt | 55 | OAK |
| +112+ | 1.8 | Eric Plunk | 53.7 | TOT |
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