Updated August 21, 2020
| AL East | Closer | Job Security | Tier | Next up | Wild card |
| Baltimore Orioles | Cole Sulser | + | 4 | Miguel Castro | Mychal Givens |
| Boston Red Sox | Brandon Workman | ++ | 3 | Matt Barnes | Marcus Walden |
| New York Yankees | Aroldis Chapman | +++ | 2 | Adam Ottavino | Zack Britton (inj) |
| Tampa Bay Rays | Nick Anderson (committee) | + | 3 | Jose Castillo | Oliver Drake (inj) |
| Toronto Blue Jays | Anthony Bass | + | 3 | Jordan Romano | Ken Giles (inj) |
| AL Central | |||||
| Chicago White Sox | Alex Colome | ++ | 3 | Evan Marshall | Aaron Bummer (inj) |
| Cleveland Indians | Brad Hand | ++ | 2 | James Karinchak | Nick Wittgren |
| Detroit Tigers | Joe Jimenez | ++ | 3 | Gregory Soto | Matt Foster |
| Kansas City Royals | Trevor Rosenthal | ++ | 4 | Greg Holland | Scott Barlow |
| Minnesota Twins | Taylor Rogers (committee) | ++ | 2 | Sergio Romo | Trevor May |
| AL West | |||||
| Houston Astros | Ryan Pressly | ++ | 3 | Blake Taylor | Chris Devenski (inj) |
| Los Angeles Angels | Ty Buttrey | ++ | 3 | Felix Pena | Hansel Robles |
| Oakland Athletics | Liam Hendriks | +++ | 1 | Joakim Soria | Jake Diekman |
| Seattle Mariners | Taylor Williams (committee) | + | 5 | Dan Altavilla | Matt Magill |
| Texas Rangers | Rafael Montero | ++ | 4 | Jonathan Hernandez | Nick Goody (inj) |
| NL East | |||||
| Atlanta Braves | Mark Melancon | ++ | 3 | Will Smith | Shane Greene |
| Miami Marlins | Brandon Kintzler | + | 4 | Nick Vincent | Brad Boxberger |
| New York Mets | Edwin Diaz | + | 4 | Jeurys Familia | Seth Lugo |
| Philadelphia Phillies | Hector Neris | + | 3 | Adam Morgan | Jose Alvarez (inj) |
| Washington Nationals | Daniel Hudson | ++ | 3 | Tanner Rainey | Will Harris |
| NL Central | |||||
| Chicago Cubs | Craig Kimbrel (committee) | + | 4 | Jeremy Jeffress | Rowan Wick |
| Cincinnati Reds | Raisel Iglesias | + | 4 | Michael Lorenzen | Amir Garrett |
| Milwaukee Brewers | Josh Hader | +++ | 1 | David Phelphs | Corey Knebel (inj) |
| Pittsburgh Pirates | Keone Kela | + | 4 | Richard Rodriguez | Dovydas Neverauskas |
| St. Louis Cardinals | Giovanny Gallegos (committee) | + | 4 | Andrew Miller | Ryan Helsley (inj) |
| NL West | |||||
| Arizona Diamondbacks | Archie Bradley | +++ | 2 | Hector Rondon | Kevin Ginkel |
| Colorado Rockies | Daniel Bard (committee) | + | 5 | Jairo Diaz | Wade Davis (inj) |
| Los Angeles Dodgers | Kenley Jansen | +++ | 2 | Blake Treinen | Pedro Baez (inj) |
| San Diego Padres | Drew Pomeranz (DTD) | ++ | 2 | Emilio Pagan | Cal Quantrill |
| San Francisco Giants | Trevor Gott (committee) | + | 5 | Tyler Rogers | Tony Watson |