| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Yankees | NYA | 3.61 | 199805130_TEX_NYA |
| San Francisco Giants | SFN | 3.06 | 199805150_NYN_SFN |
| New York Mets | NYN | 2.21 | 199805150_NYN_SFN |
| Los Angeles Dodgers | LAN | 1.94 | 199805130_PHI_LAN |
| Cleveland Indians | CLE | 1.35 | 199805130_CLE_BAL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | -4.5 | 199805140_KCA_TBA |
| Chicago White Sox | CHA | -4.23 | 199805140_SEA_CHA |
| Tampa Bay Devil Rays | TBA | -2.82 | 199805150_TBA_BAL |
| Arizona Diamondbacks | ARI | -2.41 | 199805140_MIL_ARI |
| Seattle Mariners | SEA | -1.87 | 199805130_SEA_DET |
Based on accumulated WAA for this season up to 1998-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +035+ | 1.98 | Robb Nen | 25.7 | SFN |
| +045+ | 1.84 | Eric Gunderson | 20 | TEX |
| +054+ | 1.75 | Steve Reed | 23.3 | SFN |
| +056+ | 1.72 | Ugueth Urbina | 20.7 | WAS |
| +058+ | 1.68 | Jeff Shaw | 24.3 | CIN |
| +060+ | 1.65 | Mark Leiter | 26 | PHI |
| +061+ | 1.64 | John Johnstone | 22.3 | SFN |
| +067+ | 1.58 | Derek Lowe | 33.7 | BOS |
| +065+ | 1.58 | Julian Tavarez | 30 | SFN |
| +068+ | 1.57 | Jason Christiansen | 17.7 | PIT |
| +069+ | 1.57 | Mike Trombley | 28 | MIN |
| +071+ | 1.53 | Tom Gordon | 23 | BOS |
| +078+ | 1.45 | Chris Peters | 22.7 | PIT |
| +081+ | 1.42 | Bob Wickman | 26.7 | MIL |
| +082+ | 1.4 | Ricardo Rincon | 16 | PIT |
| +091+ | 1.29 | John Wetteland | 16.7 | TEX |
| XXXXX | 1.24 | Trevor Hoffman | 20.7 | SDN |
| XXXXX | 1.23 | Paul Quantrill | 24.3 | TOR |
| XXXXX | 1.21 | Mel Rojas | 16 | NYN |
| XXXXX | 1.19 | Mike Myers | 14 | MIL |
| XXXXX | 1.15 | Chuck McElroy | 21 | COL |
| XXXXX | 1.14 | Esteban Yan | 21.3 | TBA |
| XXXXX | 1.12 | Terry Adams | 25.7 | CHN |
| XXXXX | 1.11 | Mariano Rivera | 13 | NYA |
| XXXXX | 1.09 | Bryce Florie | 27.7 | DET |
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