| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | 2.24 | 199809140_NYN_HOU |
| Colorado Rockies | COL | 1.68 | 199809150_COL_LAN |
| Montreal Expos | WAS | 1.54 | 199809140_MIA_WAS |
| Los Angeles Dodgers | LAN | 1.48 | 199809140_COL_LAN |
| Tampa Bay Devil Rays | TBA | 1.42 | 199809160_NYA_TBA |
| 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 |
| Chicago Cubs | CHN | -1.7 | 199809140_CHN_SDN |
Based on accumulated WAA for this season up to 1998-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +035+ | 5.68 | Robb Nen | 84.7 | SFN |
| +052+ | 5.09 | Ugueth Urbina | 64.7 | WAS |
| +067+ | 4.55 | Trevor Hoffman | 68.7 | SDN |
| +070+ | 4.42 | Jeff Shaw | 81 | TOT |
| +078+ | 3.92 | Mike Jackson | 61 | CLE |
| +079+ | 3.9 | Dennis Cook | 64.7 | NYN |
| +085+ | 3.71 | Albie Lopez | 74.3 | TBA |
| +086+ | 3.69 | Chuck McElroy | 67.3 | COL |
| +087+ | 3.67 | Ramiro Mendoza | 123.7 | NYA |
| +089+ | 3.61 | Mariano Rivera | 57.7 | NYA |
| +092+ | 3.52 | Juan Acevedo | 92.3 | SLN |
| +096+ | 3.34 | John Wetteland | 58 | TEX |
| +098+ | 3.24 | Paul Quantrill | 76.7 | TOR |
| +099+ | 3.18 | Shigetoshi Hasegawa | 93.3 | ANA |
| +103+ | 3.04 | Terry Mulholland | 95.7 | CHN |
| +108+ | 2.91 | Donne Wall | 67 | SDN |
| +109+ | 2.88 | Steve Kline | 71.7 | WAS |
| +111+ | 2.82 | Tom Gordon | 73.3 | BOS |
| +113+ | 2.81 | Kerry Ligtenberg | 69.3 | ATL |
| +115+ | 2.77 | Jason Christiansen | 63.7 | PIT |
| +125+ | 2.56 | Scott Radinsky | 61.3 | LAN |
| +127+ | 2.53 | Mike Timlin | 74.3 | SEA |
| +130+ | 2.51 | Jim Corsi | 60.3 | BOS |
| +131+ | 2.49 | Sean Bergman | 169 | HOU |
| +135+ | 2.45 | Mike Williams | 48.3 | PIT |
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