| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | 2.27 | 202109040_LAN_SFN |
| Oakland Athletics | OAK | 2.17 | 202109030_OAK_TOR |
| Milwaukee Brewers | MIL | 2.07 | 202109020_MIL_SFN |
| Tampa Bay Rays | TBA | 1.83 | 202109040_MIN_TBA |
| San Diego Padres | SDN | 1.71 | 202109030_HOU_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Colorado Rockies | COL | -4.91 | 202109040_ATL_COL |
| Baltimore Orioles | BAL | -3.26 | 202109030_BAL_NYA |
| Chicago Cubs | CHN | -2.18 | 202109040_PIT_CHN |
| Arizona Diamondbacks | ARI | -1.68 | 202109030_SEA_ARI |
| Texas Rangers | TEX | -1.1 | 202109040_TEX_ANA |
Based on accumulated WAA for this season up to 2021-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +039+ | 4.16 | Andrew Kittredge | 63 | TBA |
| +044+ | 4.05 | Garrett Whitlock | 66.3 | BOS |
| +053+ | 3.66 | Emmanuel Clase | 58.3 | CLE |
| +054+ | 3.65 | Tyler Rogers | 66 | SFN |
| +059+ | 3.46 | Aaron Loup | 46.7 | NYN |
| +062+ | 3.34 | Andrew Chafin | 57.3 | TOT |
| +067+ | 3.24 | Blake Treinen | 62 | LAN |
| +068+ | 3.23 | Collin McHugh | 53.3 | TBA |
| +076+ | 3.08 | Drew Steckenrider | 55.3 | SEA |
| +079+ | 3.06 | Josh Hader | 48.7 | MIL |
| +080+ | 3.04 | Ryan Pressly | 55 | HOU |
| +087+ | 2.85 | Jonathan Loaisiga | 68 | NYA |
| +092+ | 2.66 | David Bednar | 55.7 | PIT |
| +097+ | 2.65 | Craig Kimbrel | 50 | TOT |
| +101+ | 2.61 | Brad Boxberger | 57 | MIL |
| +103+ | 2.59 | Kendall Graveman | 46 | TOT |
| +105+ | 2.57 | Scott Barlow | 64.3 | KCA |
| +107+ | 2.55 | Luke Jackson | 51.3 | ATL |
| +112+ | 2.47 | Adam Cimber | 58.7 | TOT |
| +113+ | 2.47 | Richard Rodriguez | 54 | TOT |
| +116+ | 2.45 | Jarlin Garcia | 58 | SFN |
| +124+ | 2.3 | Jose Cisnero | 59.3 | DET |
| +125+ | 2.28 | Jose Alvarez | 54 | SFN |
| +127+ | 2.26 | Dominic Leone | 38.7 | SFN |
| +129+ | 2.26 | Tyler Matzek | 52.7 | ATL |
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