| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | 3.21 | 199805170_NYN_SFN |
| New York Yankees | NYA | 2.41 | 199805150_MIN_NYA |
| New York Mets | NYN | 2.21 | 199805150_NYN_SFN |
| Los Angeles Dodgers | LAN | 1.66 | 199805150_WAS_LAN |
| Cleveland Indians | CLE | 1.43 | 199805160_TEX_CLE |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Tampa Bay Devil Rays | TBA | -5.43 | 199805160_TBA_BAL |
| Chicago White Sox | CHA | -4.28 | 199805170_OAK_CHA |
| Kansas City Royals | KCA | -3.33 | 199805150_KCA_BOS |
| Arizona Diamondbacks | ARI | -2.01 | 199805170_PIT_ARI |
| Seattle Mariners | SEA | -1.69 | 199805150_SEA_CHA |
Based on accumulated WAA for this season up to 1998-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +032+ | 2.14 | Robb Nen | 27.3 | SFN |
| +044+ | 1.94 | John Johnstone | 25.3 | SFN |
| +043+ | 1.94 | Steve Reed | 25.3 | SFN |
| +050+ | 1.86 | Derek Lowe | 38.7 | BOS |
| +053+ | 1.84 | Eric Gunderson | 20 | TEX |
| +058+ | 1.77 | Jeff Shaw | 25.3 | CIN |
| +059+ | 1.76 | Tom Gordon | 25.3 | BOS |
| +062+ | 1.72 | Ugueth Urbina | 20.7 | WAS |
| +069+ | 1.57 | Mike Trombley | 28 | MIN |
| +073+ | 1.51 | Chris Peters | 23.3 | PIT |
| +072+ | 1.51 | Bob Wickman | 27.7 | MIL |
| +074+ | 1.5 | Ricardo Rincon | 17 | PIT |
| +077+ | 1.46 | Jason Christiansen | 18.7 | PIT |
| +083+ | 1.43 | Julian Tavarez | 30.7 | SFN |
| +087+ | 1.39 | John Wetteland | 17.7 | TEX |
| +090+ | 1.35 | Paul Quantrill | 25.7 | TOR |
| +094+ | 1.33 | Trevor Hoffman | 21.7 | SDN |
| XXXXX | 1.23 | Mark Leiter | 26 | PHI |
| XXXXX | 1.23 | Mike Myers | 14.3 | MIL |
| XXXXX | 1.21 | Carlos Reyes | 18.3 | SDN |
| XXXXX | 1.21 | Mariano Rivera | 14 | NYA |
| XXXXX | 1.18 | Terry Adams | 26.3 | CHN |
| XXXXX | 1.17 | Chuck McElroy | 21.3 | COL |
| XXXXX | 1.16 | Mel Rojas | 17.7 | NYN |
| XXXXX | 1.13 | Jim Poole | 15.3 | SFN |
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