| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 2.06 | 199809200_HOU_PIT |
| San Francisco Giants | SFN | 2.03 | 199809210_PIT_SFN |
| New York Yankees | NYA | 1.85 | 199809221_CLE_NYA |
| Boston Red Sox | BOS | 1.6 | 199809220_TBA_BOS |
| Colorado Rockies | COL | 1.55 | 199809200_COL_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | -5.36 | 199809200_KCA_CLE |
| Anaheim Angels | ANA | -3.81 | 199809210_TEX_ANA |
| Detroit Tigers | DET | -2.95 | 199809220_DET_KCA |
| Oakland Athletics | OAK | -2.95 | 199809200_OAK_TEX |
| Chicago Cubs | CHN | -2.88 | 199809200_CIN_CHN |
Based on accumulated WAA for this season up to 1998-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +038+ | 5.77 | Robb Nen | 85.7 | SFN |
| +062+ | 4.95 | Ugueth Urbina | 67.3 | WAS |
| +072+ | 4.53 | Trevor Hoffman | 70.7 | SDN |
| +073+ | 4.51 | Jeff Shaw | 82 | TOT |
| +080+ | 4.03 | Mike Jackson | 62 | CLE |
| +082+ | 3.92 | Dennis Cook | 67 | NYN |
| +084+ | 3.82 | Juan Acevedo | 95.3 | SLN |
| +088+ | 3.61 | Mariano Rivera | 59.7 | NYA |
| +089+ | 3.58 | Albie Lopez | 77.3 | TBA |
| +090+ | 3.53 | John Wetteland | 60 | TEX |
| +093+ | 3.41 | Ramiro Mendoza | 129.3 | NYA |
| +101+ | 3.29 | Chuck McElroy | 67.7 | COL |
| +103+ | 3.13 | Donne Wall | 69.3 | SDN |
| +105+ | 3.09 | Tom Gordon | 76 | BOS |
| +106+ | 3.05 | Paul Quantrill | 79 | TOR |
| +107+ | 3.01 | Kerry Ligtenberg | 71.3 | ATL |
| +113+ | 2.88 | Steve Kline | 71.7 | WAS |
| +116+ | 2.82 | Jim Corsi | 63.3 | BOS |
| +119+ | 2.77 | Jason Christiansen | 63.7 | PIT |
| +121+ | 2.72 | Mike Timlin | 78.3 | SEA |
| +124+ | 2.7 | Sean Bergman | 171 | HOU |
| +125+ | 2.66 | Mike Williams | 50.3 | PIT |
| +130+ | 2.54 | Turk Wendell | 72 | NYN |
| +133+ | 2.51 | Dave Veres | 72.3 | COL |
| +135+ | 2.48 | Shigetoshi Hasegawa | 97 | ANA |
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