| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 2.39 | 199809100_MIL_HOU |
| New York Yankees | NYA | 1.71 | 199809100_TOR_NYA |
| Colorado Rockies | COL | 1.38 | 199809090_MIA_COL |
| Los Angeles Dodgers | LAN | 1.24 | 199809100_LAN_SDN |
| San Francisco Giants | SFN | 0.87 | 199809090_SFN_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | -8.84 | 199809090_BAL_OAK |
| Kansas City Royals | KCA | -6.97 | 199809090_KCA_TEX |
| Seattle Mariners | SEA | -3.27 | 199809090_TBA_SEA |
| Chicago White Sox | CHA | -1.59 | 199809080_DET_CHA |
| Florida Marlins | MIA | -0.58 | 199809100_MIA_COL |
Based on accumulated WAA for this season up to 1998-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +034+ | 5.61 | Robb Nen | 79.7 | SFN |
| +055+ | 4.76 | Ugueth Urbina | 61.3 | WAS |
| +068+ | 4.26 | Trevor Hoffman | 65.7 | SDN |
| +069+ | 4.23 | Jeff Shaw | 79 | TOT |
| +076+ | 3.87 | Albie Lopez | 71.7 | TBA |
| +077+ | 3.84 | Dennis Cook | 61.7 | NYN |
| +083+ | 3.73 | Mike Jackson | 59 | CLE |
| +082+ | 3.73 | Chuck McElroy | 65.7 | COL |
| +086+ | 3.52 | Mariano Rivera | 56.7 | NYA |
| +088+ | 3.48 | Ramiro Mendoza | 121.7 | NYA |
| +089+ | 3.45 | John Wetteland | 55 | TEX |
| +096+ | 3.18 | Juan Acevedo | 89 | SLN |
| +097+ | 3.16 | Terry Mulholland | 84.3 | CHN |
| +099+ | 3.11 | Paul Quantrill | 73.3 | TOR |
| +100+ | 3.08 | Tom Gordon | 69.7 | BOS |
| +101+ | 3.04 | Donne Wall | 66 | SDN |
| +102+ | 2.97 | Jason Christiansen | 61.7 | PIT |
| +103+ | 2.96 | Shigetoshi Hasegawa | 91.3 | ANA |
| +112+ | 2.69 | Ricardo Rincon | 61 | PIT |
| +116+ | 2.62 | Steve Kline | 69 | WAS |
| +120+ | 2.59 | John Hudek | 59.3 | TOT |
| +124+ | 2.57 | Billy Wagner | 51.7 | HOU |
| +126+ | 2.55 | Kerry Ligtenberg | 66.7 | ATL |
| +133+ | 2.49 | Scott Service | 76.7 | KCA |
| +135+ | 2.47 | Scott Radinsky | 60.3 | LAN |
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