| Team | Tm | Tier | Game |
|---|---|---|---|
| Tampa Bay Rays | TBA | 4.04 | 202109190_DET_TBA |
| Milwaukee Brewers | MIL | 3.52 | 202109200_SLN_MIL |
| San Francisco Giants | SFN | 3.18 | 202109210_SFN_SDN |
| Los Angeles Dodgers | LAN | 3.07 | 202109190_LAN_CIN |
| Chicago White Sox | CHA | 1.79 | 202109190_CHA_TEX |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -3.65 | 202109190_BAL_BOS |
| Chicago Cubs | CHN | -2.7 | 202109210_MIN_CHN |
| Pittsburgh Pirates | PIT | -2.67 | 202109190_PIT_MIA |
| Colorado Rockies | COL | -1.6 | 202109190_COL_WAS |
| Cleveland Guardians | CLE | -1.51 | 202109190_CLE_NYA |
Based on accumulated WAA for this season up to 2021-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +044+ | 4.44 | Emmanuel Clase | 65.7 | CLE |
| +050+ | 4.23 | Aaron Loup | 54 | NYN |
| +058+ | 3.96 | Collin McHugh | 60.7 | TBA |
| +061+ | 3.81 | Garrett Whitlock | 72.3 | BOS |
| +062+ | 3.8 | Tyler Rogers | 74 | SFN |
| +068+ | 3.59 | Andrew Chafin | 64 | TOT |
| +069+ | 3.56 | Josh Hader | 53.7 | MIL |
| +071+ | 3.47 | Blake Treinen | 68.3 | LAN |
| +089+ | 3.14 | Adam Cimber | 65.3 | TOT |
| +097+ | 2.99 | Luke Jackson | 58 | ATL |
| +094+ | 2.99 | Scott Barlow | 70.3 | KCA |
| +107+ | 2.84 | Drew Steckenrider | 61.3 | SEA |
| +112+ | 2.76 | Ryan Pressly | 60.7 | HOU |
| +111+ | 2.76 | Jordan Romano | 59 | TOR |
| +113+ | 2.75 | Dominic Leone | 48 | SFN |
| +118+ | 2.66 | Mark Melancon | 61.7 | SDN |
| +119+ | 2.63 | Casey Sadler | 33.3 | SEA |
| +121+ | 2.61 | Nabil Crismatt | 74 | SDN |
| +122+ | 2.6 | Craig Kimbrel | 55.7 | TOT |
| +123+ | 2.59 | Kenley Jansen | 63.7 | LAN |
| +124+ | 2.59 | Jarlin Garcia | 63.7 | SFN |
| +129+ | 2.5 | Craig Stammen | 83.7 | SDN |
| +132+ | 2.45 | Raisel Iglesias | 65 | ANA |
| +138+ | 2.34 | Lucas Luetge | 69 | NYA |
| +141+ | 2.3 | Liam Hendriks | 65 | CHA |
_