| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 2.49 | 199809130_SLN_HOU |
| Montreal Expos | WAS | 1.54 | 199809130_NYN_WAS |
| Los Angeles Dodgers | LAN | 1.48 | 199809140_COL_LAN |
| New York Yankees | NYA | 1.42 | 199809140_BOS_NYA |
| Colorado Rockies | COL | 1.35 | 199809130_COL_SFN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | -6.33 | 199809120_SEA_KCA |
| Seattle Mariners | SEA | -5.08 | 199809120_SEA_KCA |
| Anaheim Angels | ANA | -2.8 | 199809130_ANA_BAL |
| Oakland Athletics | OAK | -2.42 | 199809140_OAK_KCA |
| Detroit Tigers | DET | -2.16 | 199809140_CHA_DET |
Based on accumulated WAA for this season up to 1998-09-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +036+ | 5.61 | Robb Nen | 81.7 | SFN |
| +050+ | 5.1 | Ugueth Urbina | 64.7 | WAS |
| +066+ | 4.56 | Trevor Hoffman | 68.7 | SDN |
| +072+ | 4.33 | Jeff Shaw | 80 | TOT |
| +073+ | 4.03 | Dennis Cook | 63.7 | NYN |
| +076+ | 3.93 | Mike Jackson | 61 | CLE |
| +082+ | 3.7 | Chuck McElroy | 67.3 | COL |
| +083+ | 3.68 | Ramiro Mendoza | 123.7 | NYA |
| +086+ | 3.56 | John Wetteland | 56 | TEX |
| +087+ | 3.52 | Mariano Rivera | 56.7 | NYA |
| +088+ | 3.51 | Albie Lopez | 72.3 | TBA |
| +093+ | 3.35 | Paul Quantrill | 75.7 | TOR |
| +094+ | 3.3 | Juan Acevedo | 90 | SLN |
| +100+ | 3.18 | Shigetoshi Hasegawa | 93.3 | ANA |
| +101+ | 3.09 | Jason Christiansen | 62.7 | PIT |
| +105+ | 2.92 | Donne Wall | 67 | SDN |
| +106+ | 2.86 | Steve Kline | 71.3 | WAS |
| +109+ | 2.82 | Kerry Ligtenberg | 69.3 | ATL |
| +110+ | 2.79 | Tom Gordon | 71 | BOS |
| +112+ | 2.76 | Scott Service | 79.3 | KCA |
| +111+ | 2.76 | Terry Mulholland | 88.7 | CHN |
| +118+ | 2.7 | Ricardo Rincon | 61 | PIT |
| +126+ | 2.57 | Scott Radinsky | 61.3 | LAN |
| +128+ | 2.56 | Jim Corsi | 58.7 | BOS |
| +132+ | 2.51 | Graeme Lloyd | 34.7 | NYA |
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