| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 2.49 | 199809130_SLN_HOU |
| Colorado Rockies | COL | 1.68 | 199809150_COL_LAN |
| 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 |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | -5.83 | 199809140_OAK_KCA |
| Seattle Mariners | SEA | -4.73 | 199809140_SEA_MIN |
| Oakland Athletics | OAK | -3.01 | 199809150_OAK_KCA |
| Detroit Tigers | DET | -2.81 | 199809150_CHA_DET |
| Anaheim Angels | ANA | -2.8 | 199809130_ANA_BAL |
Based on accumulated WAA for this season up to 1998-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +032+ | 5.81 | Robb Nen | 83.7 | SFN |
| +050+ | 5.1 | Ugueth Urbina | 64.7 | WAS |
| +066+ | 4.56 | Trevor Hoffman | 68.7 | SDN |
| +070+ | 4.33 | Jeff Shaw | 80 | TOT |
| +074+ | 4.03 | Dennis Cook | 63.7 | NYN |
| +077+ | 3.93 | Mike Jackson | 61 | CLE |
| +084+ | 3.7 | Chuck McElroy | 67.3 | COL |
| +085+ | 3.69 | Ramiro Mendoza | 123.7 | NYA |
| +087+ | 3.66 | John Wetteland | 57 | TEX |
| +089+ | 3.62 | Mariano Rivera | 57.7 | NYA |
| +090+ | 3.51 | Albie Lopez | 72.3 | TBA |
| +094+ | 3.44 | Juan Acevedo | 91.3 | SLN |
| +097+ | 3.25 | Paul Quantrill | 76.7 | TOR |
| +098+ | 3.19 | Shigetoshi Hasegawa | 93.3 | ANA |
| +104+ | 2.92 | Donne Wall | 67 | SDN |
| +105+ | 2.92 | Jason Christiansen | 63 | PIT |
| +106+ | 2.9 | Tom Gordon | 72 | BOS |
| +108+ | 2.86 | Steve Kline | 71.3 | WAS |
| +111+ | 2.82 | Kerry Ligtenberg | 69.3 | ATL |
| +114+ | 2.76 | Scott Service | 79.3 | KCA |
| +113+ | 2.76 | Terry Mulholland | 88.7 | CHN |
| +125+ | 2.57 | Scott Radinsky | 61.3 | LAN |
| +127+ | 2.55 | Gregg Olson | 64.3 | ARI |
| +130+ | 2.52 | Jim Corsi | 60.3 | BOS |
| +131+ | 2.52 | Graeme Lloyd | 34.7 | NYA |
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