| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 5 | 201809210_MIN_OAK |
| Houston Astros | HOU | 2.58 | 201809190_SEA_HOU |
| Milwaukee Brewers | MIL | 2.56 | 201809210_MIL_PIT |
| San Diego Padres | SDN | 1.63 | 201809210_SDN_LAN |
| New York Yankees | NYA | 1.15 | 201809200_BOS_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Texas Rangers | TEX | -8.89 | 201809190_TBA_TEX |
| Kansas City Royals | KCA | -5.16 | 201809200_KCA_DET |
| Miami Marlins | MIA | -2.43 | 201809210_CIN_MIA |
| Minnesota Twins | MIN | -1.43 | 201809190_MIN_DET |
| Baltimore Orioles | BAL | -1.25 | 201809190_TOR_BAL |
Based on accumulated WAA for this season up to 2018-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +015+ | 5.83 | Blake Treinen | 76.3 | OAK |
| +033+ | 4.56 | Jeremy Jeffress | 73.3 | MIL |
| +046+ | 3.86 | Josh Hader | 77 | MIL |
| +053+ | 3.72 | Jared Hughes | 75 | CIN |
| +064+ | 3.35 | Seth Lugo | 100.3 | NYN |
| +071+ | 3.23 | Adam Ottavino | 74.3 | COL |
| +074+ | 3.18 | Collin McHugh | 68 | HOU |
| +082+ | 3.02 | Dylan Floro | 64 | TOT |
| +087+ | 2.91 | Matt Strahm | 58.3 | SDN |
| +088+ | 2.86 | Yoshihisa Hirano | 64.7 | ARI |
| +089+ | 2.83 | Raisel Iglesias | 68 | CIN |
| +091+ | 2.83 | Kirby Yates | 59.7 | SDN |
| +093+ | 2.8 | Will Smith | 51 | SFN |
| +095+ | 2.72 | Craig Kimbrel | 61 | BOS |
| +105+ | 2.6 | Richard Rodriguez | 65.7 | PIT |
| +115+ | 2.51 | Sean Doolittle | 43.3 | WAS |
| +118+ | 2.49 | Chad Green | 71.7 | NYA |
| +120+ | 2.42 | Kyle Crick | 57.3 | PIT |
| +122+ | 2.39 | Victor Arano | 57.3 | PHI |
| +126+ | 2.36 | Ryan Pressly | 67.7 | TOT |
| +128+ | 2.33 | Carlos Martinez | 113.7 | SLN |
| +131+ | 2.32 | Brad Hand | 69.7 | TOT |
| +134+ | 2.26 | Oliver Perez | 30 | CLE |
| +136+ | 2.24 | Reyes Moronta | 62.7 | SFN |
| +138+ | 2.21 | Craig Stammen | 75 | SDN |
_