| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.22 | 201809010_SEA_OAK |
| Houston Astros | HOU | 2.44 | 201808310_ANA_HOU |
| Chicago Cubs | CHN | 2.15 | 201808310_CHN_PHI |
| Milwaukee Brewers | MIL | 2.12 | 201809010_MIL_WAS |
| Arizona Diamondbacks | ARI | 1.77 | 201809020_ARI_LAN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | -4.81 | 201808310_BAL_KCA |
| Texas Rangers | TEX | -3.92 | 201809020_MIN_TEX |
| Baltimore Orioles | BAL | -2.43 | 201809010_BAL_KCA |
| Chicago White Sox | CHA | -2.11 | 201809020_BOS_CHA |
| Minnesota Twins | MIN | -2.09 | 201809020_MIN_TEX |
Based on accumulated WAA for this season up to 2018-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +020+ | 5.06 | Blake Treinen | 68.3 | OAK |
| +034+ | 3.85 | Jeremy Jeffress | 66 | MIL |
| +037+ | 3.82 | T.J. McFarland | 70.3 | ARI |
| +047+ | 3.46 | Jared Hughes | 68.3 | CIN |
| +050+ | 3.38 | Edwin Diaz | 65.3 | SEA |
| +051+ | 3.35 | Adam Ottavino | 67 | COL |
| +055+ | 3.32 | Josh Hader | 67 | MIL |
| +058+ | 3.24 | Collin McHugh | 62 | HOU |
| +071+ | 2.95 | Lou Trivino | 66 | OAK |
| +072+ | 2.94 | Steve Cishek | 61.7 | CHN |
| +075+ | 2.86 | Reyes Moronta | 60.7 | SFN |
| +077+ | 2.84 | Jose Leclerc | 50.7 | TEX |
| +082+ | 2.77 | Seth Lugo | 90 | NYN |
| +086+ | 2.66 | Jesse Chavez | 81.7 | TOT |
| +087+ | 2.63 | Yoshihisa Hirano | 58 | ARI |
| +090+ | 2.62 | Jose Alvarado | 57.3 | TBA |
| +092+ | 2.55 | Seung Hwan Oh | 62.7 | TOT |
| +094+ | 2.52 | Dylan Floro | 59 | TOT |
| +096+ | 2.51 | Will Smith | 46 | SFN |
| +100+ | 2.47 | Kirby Yates | 51.7 | SDN |
| +098+ | 2.47 | Craig Stammen | 67 | SDN |
| +101+ | 2.46 | Hector Rondon | 51.7 | HOU |
| +104+ | 2.4 | Edgar Santana | 61.3 | PIT |
| +105+ | 2.4 | Raisel Iglesias | 61.7 | CIN |
| +110+ | 2.37 | Matt Strahm | 50.7 | SDN |
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