| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 3.47 | 201809120_OAK_BAL |
| Houston Astros | HOU | 1.9 | 201809120_HOU_DET |
| Milwaukee Brewers | MIL | 1.7 | 201809120_MIL_CHN |
| Boston Red Sox | BOS | 0.84 | 201809130_TOR_BOS |
| Seattle Mariners | SEA | 0.68 | 201809130_SEA_ANA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Texas Rangers | TEX | -6.82 | 201809110_TEX_ANA |
| Kansas City Royals | KCA | -3.69 | 201809120_CHA_KCA |
| Baltimore Orioles | BAL | -2.88 | 201809120_OAK_BAL |
| Miami Marlins | MIA | -1.94 | 201809131_MIA_NYN |
| Minnesota Twins | MIN | -1.45 | 201809110_NYA_MIN |
Based on accumulated WAA for this season up to 2018-09-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +032+ | 4.36 | Jeremy Jeffress | 71.3 | MIL |
| +045+ | 3.87 | Jared Hughes | 72.3 | CIN |
| +046+ | 3.63 | Josh Hader | 74.7 | MIL |
| +052+ | 3.54 | Edwin Diaz | 69.3 | SEA |
| +057+ | 3.38 | Collin McHugh | 65.7 | HOU |
| +060+ | 3.31 | Adam Ottavino | 71 | COL |
| +063+ | 3.23 | Seth Lugo | 97 | NYN |
| +070+ | 3.15 | Lou Trivino | 70.3 | OAK |
| +075+ | 3.04 | Jose Leclerc | 52.7 | TEX |
| +084+ | 2.79 | Jesse Chavez | 87.3 | TOT |
| +083+ | 2.79 | Dylan Floro | 61.7 | TOT |
| +086+ | 2.77 | Jose Alvarado | 59 | TBA |
| +090+ | 2.75 | Kirby Yates | 56.7 | SDN |
| +092+ | 2.7 | Craig Stammen | 71.3 | SDN |
| +094+ | 2.66 | Yoshihisa Hirano | 62.7 | ARI |
| +099+ | 2.56 | Matt Strahm | 54.7 | SDN |
| +100+ | 2.54 | Pedro Strop | 59.7 | CHN |
| +101+ | 2.5 | Will Smith | 48 | SFN |
| +103+ | 2.5 | Hector Rondon | 54.3 | HOU |
| +104+ | 2.49 | Raisel Iglesias | 64.7 | CIN |
| +106+ | 2.49 | Chad Green | 67.3 | NYA |
| +107+ | 2.48 | Steve Cishek | 65.7 | CHN |
| +110+ | 2.42 | Craig Kimbrel | 58 | BOS |
| +111+ | 2.41 | David Hernandez | 57.3 | CIN |
| +124+ | 2.27 | Jose Alvarez | 60 | ANA |
_