| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 3.85 | 198908040_SDN_LAN |
| Houston Astros | HOU | 2.98 | 198908020_HOU_CIN |
| St. Louis Cardinals | SLN | 1.62 | 198908040_PHI_SLN |
| Oakland Athletics | OAK | 1.59 | 198908040_OAK_SEA |
| Philadelphia Phillies | PHI | 1.12 | 198908030_CHN_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -5.65 | 198908020_TEX_DET |
| Boston Red Sox | BOS | -3.25 | 198908030_CLE_BOS |
| Seattle Mariners | SEA | -3.08 | 198908030_ANA_SEA |
| Chicago White Sox | CHA | -2.71 | 198908020_CHA_OAK |
| Baltimore Orioles | BAL | -2.03 | 198908020_BAL_BOS |
Based on accumulated WAA for this season up to 1989-08-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +024+ | 4.01 | Bill Landrum | 54.3 | PIT |
| +025+ | 4 | Larry Andersen | 64.7 | HOU |
| +027+ | 3.98 | Jay Howell | 59 | LAN |
| +032+ | 3.65 | Jeff Montgomery | 68.7 | KCA |
| +038+ | 3.27 | Mike Morgan | 132 | LAN |
| +047+ | 2.95 | Mitch Williams | 60.3 | CHN |
| +050+ | 2.84 | Danny Darwin | 90.7 | HOU |
| +052+ | 2.78 | Craig Lefferts | 75.7 | SFN |
| +059+ | 2.64 | Randy Myers | 59.3 | NYN |
| +061+ | 2.63 | Roger McDowell | 61.3 | TOT |
| +066+ | 2.58 | Jeff Parrett | 70 | PHI |
| +067+ | 2.51 | Todd Burns | 72.3 | OAK |
| +069+ | 2.44 | Rob Murphy | 72 | BOS |
| +073+ | 2.38 | Les Lancaster | 27.3 | CHN |
| +079+ | 2.22 | Mike Schooler | 51.7 | SEA |
| +081+ | 2.21 | Donn Pall | 67.7 | CHA |
| +085+ | 2.11 | Mark Davis | 56 | SDN |
| +087+ | 2.09 | Jesse Orosco | 47.7 | CLE |
| +093+ | 2.01 | Dennis Eckersley | 30.3 | OAK |
| +095+ | 1.98 | Rob Dibble | 66.7 | CIN |
| +098+ | 1.98 | Jeff Russell | 46.3 | TEX |
| +099+ | 1.96 | Rick Honeycutt | 56.3 | OAK |
| +108+ | 1.84 | Mark Grant | 70 | SDN |
| +111+ | 1.77 | Rick Aguilera | 73.3 | TOT |
| +112+ | 1.76 | Eric Plunk | 55.7 | TOT |
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