| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 3.3 | 201809040_NYA_OAK |
| Houston Astros | HOU | 2.53 | 201809050_MIN_HOU |
| Chicago Cubs | CHN | 2 | 201809030_CHN_MIL |
| Arizona Diamondbacks | ARI | 1.63 | 201809030_SDN_ARI |
| Milwaukee Brewers | MIL | 1.55 | 201809030_CHN_MIL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Texas Rangers | TEX | -6.43 | 201809050_ANA_TEX |
| Minnesota Twins | MIN | -3.96 | 201809040_MIN_HOU |
| Kansas City Royals | KCA | -3.96 | 201809040_KCA_CLE |
| Baltimore Orioles | BAL | -2.91 | 201809030_BAL_SEA |
| Toronto Blue Jays | TOR | -1.58 | 201809030_TBA_TOR |
Based on accumulated WAA for this season up to 2018-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +021+ | 5.15 | Blake Treinen | 69.3 | OAK |
| +037+ | 3.94 | Jeremy Jeffress | 67 | MIL |
| +045+ | 3.56 | Edwin Diaz | 67.3 | SEA |
| +047+ | 3.54 | Adam Ottavino | 69 | COL |
| +052+ | 3.47 | Jared Hughes | 68.3 | CIN |
| +054+ | 3.43 | Collin McHugh | 64 | HOU |
| +055+ | 3.42 | T.J. McFarland | 70.7 | ARI |
| +060+ | 3.15 | Josh Hader | 69.7 | MIL |
| +062+ | 3.13 | Lou Trivino | 68 | OAK |
| +068+ | 3.06 | Seth Lugo | 93 | NYN |
| +075+ | 2.93 | Jose Leclerc | 51.7 | TEX |
| +078+ | 2.86 | Steve Cishek | 63 | CHN |
| +085+ | 2.72 | Yoshihisa Hirano | 59 | ARI |
| +087+ | 2.65 | Jose Alvarado | 57.7 | TBA |
| +094+ | 2.56 | Kirby Yates | 52.7 | SDN |
| +095+ | 2.56 | Dylan Floro | 59.3 | TOT |
| +100+ | 2.49 | Edgar Santana | 62.3 | PIT |
| +103+ | 2.45 | Hector Rondon | 51.7 | HOU |
| +107+ | 2.4 | Matt Strahm | 51 | SDN |
| +105+ | 2.4 | Raisel Iglesias | 61.7 | CIN |
| +113+ | 2.36 | Craig Stammen | 68 | SDN |
| +117+ | 2.29 | Chad Green | 65.3 | NYA |
| +116+ | 2.29 | Jesse Chavez | 82.3 | TOT |
| +120+ | 2.26 | Jesse Biddle | 56.3 | ATL |
| +122+ | 2.25 | Carlos Martinez | 108.7 | SLN |
_