| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 4.57 | 198908070_ATL_LAN |
| Oakland Athletics | OAK | 1.84 | 198908070_OAK_SEA |
| St. Louis Cardinals | SLN | 1.75 | 198908050_PHI_SLN |
| Pittsburgh Pirates | PIT | 1.51 | 198908070_SLN_PIT |
| Philadelphia Phillies | PHI | 1.03 | 198908060_PHI_SLN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -5.6 | 198908050_DET_CHA |
| Chicago White Sox | CHA | -2.75 | 198908060_DET_CHA |
| Minnesota Twins | MIN | -1.92 | 198908070_MIN_BAL |
| Boston Red Sox | BOS | -1.68 | 198908050_CLE_BOS |
| Seattle Mariners | SEA | -1.64 | 198908050_OAK_SEA |
Based on accumulated WAA for this season up to 1989-08-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +021+ | 4.14 | Jay Howell | 61 | LAN |
| +026+ | 3.89 | Larry Andersen | 68.3 | HOU |
| +031+ | 3.54 | Jeff Montgomery | 70 | KCA |
| +033+ | 3.49 | Bill Landrum | 56.3 | PIT |
| +043+ | 3.33 | Mike Morgan | 133 | LAN |
| +049+ | 2.97 | Mitch Williams | 61.3 | CHN |
| +052+ | 2.92 | Danny Darwin | 91.7 | HOU |
| +055+ | 2.75 | Craig Lefferts | 78 | SFN |
| +056+ | 2.72 | Randy Myers | 60.7 | NYN |
| +060+ | 2.68 | Doug Drabek | 163.7 | PIT |
| +065+ | 2.58 | Rob Murphy | 73.7 | BOS |
| +064+ | 2.58 | Les Lancaster | 30 | CHN |
| +068+ | 2.51 | Todd Burns | 72.3 | OAK |
| +073+ | 2.43 | Jeff Parrett | 73.3 | PHI |
| +074+ | 2.38 | Mike Schooler | 53.7 | SEA |
| +082+ | 2.19 | Donn Pall | 67.7 | CHA |
| +086+ | 2.09 | Dennis Eckersley | 31.3 | OAK |
| +087+ | 2.08 | Rob Dibble | 68 | CIN |
| +094+ | 2 | Mark Grant | 72 | SDN |
| +104+ | 1.9 | Roger McDowell | 63 | TOT |
| +105+ | 1.89 | Jim Acker | 86 | ATL |
| +107+ | 1.85 | Jeff Russell | 47.3 | TEX |
| +109+ | 1.83 | Rick Honeycutt | 57.3 | OAK |
| +110+ | 1.82 | Mark Davis | 57.7 | SDN |
| +112+ | 1.77 | Eric Plunk | 55.7 | TOT |
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