| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.22 | 201809010_SEA_OAK |
| Houston Astros | HOU | 2.35 | 201809030_MIN_HOU |
| Milwaukee Brewers | MIL | 2.12 | 201809010_MIL_WAS |
| Chicago Cubs | CHN | 2.05 | 201809020_CHN_PHI |
| Arizona Diamondbacks | ARI | 1.77 | 201809020_ARI_LAN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Texas Rangers | TEX | -5.19 | 201809030_ANA_TEX |
| Kansas City Royals | KCA | -4.05 | 201809010_BAL_KCA |
| Minnesota Twins | MIN | -3.1 | 201809030_MIN_HOU |
| Baltimore Orioles | BAL | -2.91 | 201809030_BAL_SEA |
| Chicago White Sox | CHA | -2.11 | 201809020_BOS_CHA |
Based on accumulated WAA for this season up to 2018-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +020+ | 5.14 | Blake Treinen | 69.3 | OAK |
| +034+ | 3.94 | Jeremy Jeffress | 67 | MIL |
| +049+ | 3.46 | Jared Hughes | 68.3 | CIN |
| +048+ | 3.46 | Edwin Diaz | 66.3 | SEA |
| +052+ | 3.42 | T.J. McFarland | 70.7 | ARI |
| +051+ | 3.42 | Collin McHugh | 64 | HOU |
| +057+ | 3.34 | Adam Ottavino | 67 | COL |
| +064+ | 3.15 | Josh Hader | 69.7 | MIL |
| +067+ | 3.03 | Lou Trivino | 67 | OAK |
| +074+ | 2.85 | Reyes Moronta | 60.7 | SFN |
| +075+ | 2.85 | Seth Lugo | 91 | NYN |
| +076+ | 2.83 | Jose Leclerc | 50.7 | TEX |
| +079+ | 2.79 | Steve Cishek | 62.3 | CHN |
| +083+ | 2.68 | Jesse Chavez | 82 | TOT |
| +086+ | 2.63 | Yoshihisa Hirano | 58 | ARI |
| +089+ | 2.61 | Jose Alvarado | 57.3 | TBA |
| +092+ | 2.55 | Dylan Floro | 59.3 | TOT |
| +091+ | 2.55 | Kirby Yates | 52.7 | SDN |
| +097+ | 2.5 | Will Smith | 46 | SFN |
| +100+ | 2.45 | Hector Rondon | 51.7 | HOU |
| +104+ | 2.39 | Raisel Iglesias | 61.7 | CIN |
| +105+ | 2.39 | Edgar Santana | 61.3 | PIT |
| +111+ | 2.36 | Matt Strahm | 50.7 | SDN |
| +112+ | 2.35 | Craig Stammen | 68 | SDN |
| +117+ | 2.28 | Chad Green | 65.3 | NYA |
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