| Team | Tm | Tier | Game |
|---|---|---|---|
| Boston Red Sox | BOS | 2.08 | 199809250_BAL_BOS |
| Houston Astros | HOU | 2.05 | 199809250_CHN_HOU |
| New York Yankees | NYA | 1.63 | 199809230_CLE_NYA |
| New York Mets | NYN | 1.59 | 199809250_NYN_ATL |
| San Diego Padres | SDN | 1.22 | 199809250_SDN_ARI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | -4.66 | 199809230_DET_KCA |
| Anaheim Angels | ANA | -3.78 | 199809240_ANA_OAK |
| Oakland Athletics | OAK | -2.35 | 199809230_OAK_SEA |
| Detroit Tigers | DET | -2.35 | 199809230_DET_KCA |
| Chicago Cubs | CHN | -2.27 | 199809230_CHN_MIL |
Based on accumulated WAA for this season up to 1998-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +033+ | 6.08 | Robb Nen | 88.7 | SFN |
| +061+ | 5.06 | Ugueth Urbina | 68.3 | WAS |
| +068+ | 4.67 | Trevor Hoffman | 72 | SDN |
| +074+ | 4.5 | Jeff Shaw | 84 | TOT |
| +078+ | 4.14 | Mike Jackson | 63 | CLE |
| +083+ | 4.02 | Juan Acevedo | 97.3 | SLN |
| +085+ | 3.78 | Dennis Cook | 67.7 | NYN |
| +087+ | 3.71 | Mariano Rivera | 60.7 | NYA |
| +088+ | 3.7 | Albie Lopez | 78.3 | TBA |
| +089+ | 3.64 | John Wetteland | 61 | TEX |
| +099+ | 3.33 | Tom Gordon | 78.3 | BOS |
| +104+ | 3.24 | Donne Wall | 70.3 | SDN |
| +107+ | 3.05 | Paul Quantrill | 79 | TOR |
| +112+ | 2.89 | Jason Christiansen | 64.7 | PIT |
| +114+ | 2.87 | Kerry Ligtenberg | 72 | ATL |
| +116+ | 2.83 | Dave Veres | 75.3 | COL |
| +117+ | 2.78 | Jim Corsi | 65 | BOS |
| +120+ | 2.74 | Mike Williams | 51 | PIT |
| +121+ | 2.72 | Mike Timlin | 78.3 | SEA |
| +122+ | 2.71 | Sean Bergman | 171 | HOU |
| +123+ | 2.69 | John Johnstone | 86.3 | SFN |
| +132+ | 2.54 | Turk Wendell | 74 | NYN |
| +133+ | 2.54 | Doug Brocail | 61 | DET |
| +137+ | 2.5 | Rodney Beck | 76 | CHN |
| +138+ | 2.49 | Shigetoshi Hasegawa | 97 | ANA |
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