| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | 3.28 | 199809260_NYN_ATL |
| Houston Astros | HOU | 2.84 | 199809260_CHN_HOU |
| Boston Red Sox | BOS | 2.08 | 199809250_BAL_BOS |
| New York Yankees | NYA | 1.78 | 199809260_TBA_NYA |
| New York Mets | NYN | 1.59 | 199809250_NYN_ATL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Anaheim Angels | ANA | -4.54 | 199809260_ANA_OAK |
| Kansas City Royals | KCA | -4.12 | 199809240_CHA_KCA |
| Chicago Cubs | CHN | -2.14 | 199809250_CHN_HOU |
| Seattle Mariners | SEA | -2.04 | 199809240_TEX_SEA |
| Detroit Tigers | DET | -2 | 199809250_DET_TOR |
Based on accumulated WAA for this season up to 1998-09-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +033+ | 6.07 | Robb Nen | 88.7 | SFN |
| +055+ | 5.16 | Ugueth Urbina | 69.3 | WAS |
| +069+ | 4.67 | Trevor Hoffman | 72 | SDN |
| +075+ | 4.49 | Jeff Shaw | 84 | TOT |
| +076+ | 4.42 | Denny Neagle | 210.3 | ATL |
| +078+ | 4.24 | Mike Jackson | 64 | CLE |
| +083+ | 4.02 | Juan Acevedo | 97.3 | SLN |
| +085+ | 3.78 | Dennis Cook | 67.7 | NYN |
| +088+ | 3.7 | Albie Lopez | 78.3 | TBA |
| +089+ | 3.64 | John Wetteland | 61 | TEX |
| +093+ | 3.56 | Mariano Rivera | 61.3 | NYA |
| +096+ | 3.5 | Ramiro Mendoza | 130.3 | NYA |
| +101+ | 3.32 | Tom Gordon | 78.3 | BOS |
| +103+ | 3.23 | Donne Wall | 70.3 | SDN |
| +106+ | 3.12 | Paul Quantrill | 80 | TOR |
| +110+ | 2.96 | Kerry Ligtenberg | 73 | ATL |
| +113+ | 2.88 | Jason Christiansen | 64.7 | PIT |
| +115+ | 2.88 | Jim Corsi | 66 | BOS |
| +116+ | 2.82 | Dave Veres | 75.3 | COL |
| +117+ | 2.81 | Mike Timlin | 79.3 | SEA |
| +120+ | 2.74 | Mike Williams | 51 | PIT |
| +121+ | 2.71 | Turk Wendell | 75.7 | NYN |
| +125+ | 2.69 | John Johnstone | 86.3 | SFN |
| +124+ | 2.69 | Sean Bergman | 171 | HOU |
| +134+ | 2.6 | Jim Mecir | 84 | TBA |
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