| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | 3.89 | 199806280_TEX_SFN |
| Los Angeles Dodgers | LAN | 2.56 | 199806280_PIT_LAN |
| New York Mets | NYN | 1.77 | 199807010_NYN_TOR |
| Texas Rangers | TEX | 1.16 | 199807010_LAN_TEX |
| Cleveland Indians | CLE | 1 | 199806280_HOU_CLE |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Cardinals | SLN | -5.35 | 199807010_KCA_SLN |
| Chicago White Sox | CHA | -4.27 | 199807010_CHA_HOU |
| Kansas City Royals | KCA | -4.24 | 199806280_CHN_KCA |
| Arizona Diamondbacks | ARI | -3.03 | 199807010_ARI_CHN |
| Seattle Mariners | SEA | -2.93 | 199806300_COL_SEA |
Based on accumulated WAA for this season up to 1998-07-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +023+ | 4.09 | Robb Nen | 53.3 | SFN |
| +047+ | 3.11 | Bob Wickman | 49.3 | MIL |
| +057+ | 2.86 | Jeff Shaw | 47.7 | CIN |
| +066+ | 2.72 | Ugueth Urbina | 38.3 | WAS |
| +070+ | 2.57 | Steve Reed | 42.3 | SFN |
| +072+ | 2.55 | Mike Myers | 29.3 | MIL |
| +074+ | 2.53 | Chuck McElroy | 38.3 | COL |
| +075+ | 2.5 | Antonio Osuna | 38.7 | LAN |
| +076+ | 2.49 | Mike DeJean | 46 | COL |
| +078+ | 2.43 | Jason Christiansen | 36 | PIT |
| +084+ | 2.29 | Greg Swindell | 53 | MIN |
| +085+ | 2.26 | Albie Lopez | 50.3 | TBA |
| +089+ | 2.22 | Mariano Rivera | 29.7 | NYA |
| +088+ | 2.22 | Eric Gunderson | 35.7 | TEX |
| +093+ | 2.16 | John Wetteland | 31 | TEX |
| +094+ | 2.15 | Ricardo Rincon | 35.3 | PIT |
| +107+ | 1.94 | Dennis Cook | 31 | NYN |
| +112+ | 1.91 | Julian Tavarez | 56.7 | SFN |
| +113+ | 1.89 | Billy Wagner | 32.7 | HOU |
| +117+ | 1.88 | Trevor Hoffman | 36.7 | SDN |
| +118+ | 1.84 | Brian Bohanon | 50.3 | NYN |
| +119+ | 1.81 | Paul Quantrill | 44.7 | TOR |
| +121+ | 1.8 | Mike Jackson | 32 | CLE |
| +122+ | 1.79 | Jim Corsi | 41.7 | BOS |
| +123+ | 1.78 | Tom Gordon | 43.7 | BOS |
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