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| 2021-12-19 02:03:46 | San Antonio Brothas | | Demoted | Jonas Cager | Calgary Cougars |
| 2021-12-19 02:03:40 | San Antonio Brothas | | Demoted | Kyle Anderson | Calgary Cougars |
| 2021-12-19 01:57:44 | New York Warriors | | Demoted | Arthur Washer | Hartford Hebrew Hammers |
| 2021-12-19 01:55:14 | Syracuse River Rats | | Promoted | Fredy Beecham | Houston Octopods |
| 2021-12-19 01:49:12 | Houston Octopods | | Demoted | Fredy Beecham | Syracuse River Rats |
| 2021-12-19 01:49:06 | Houston Octopods | | Demoted | Benjamin Ramirez | Syracuse River Rats |
| 2021-12-19 01:49:00 | Houston Octopods | | Demoted | Jonathan Lewis | Syracuse River Rats |
| 2021-12-19 01:44:34 | St. Louis 5th Alarm | | Demoted | Wyatt Holloway | Caracas Crocodiles |
| 2021-12-19 01:44:28 | St. Louis 5th Alarm | | Demoted | Cameron Williams | Caracas Crocodiles |
| 2021-12-19 01:43:52 | Caracas Crocodiles | | Promoted | Dylan McGhee | St. Louis 5th Alarm |
| 2021-12-19 01:43:16 | St. Louis 5th Alarm | | Demoted | Jacob Delgreco | Caracas Crocodiles |
| 2021-12-19 01:43:10 | St. Louis 5th Alarm | | Demoted | Jose Woods | Caracas Crocodiles |
| 2021-12-19 01:43:02 | St. Louis 5th Alarm | | Demoted | Dylan McGhee | Caracas Crocodiles |
| 2021-12-19 01:42:58 | St. Louis 5th Alarm | | Demoted | Javier Scott | Caracas Crocodiles |
| 2021-12-19 01:42:32 | Caracas Crocodiles | | Promoted | Nathan Stpierre | St. Louis 5th Alarm |
| 2021-12-18 23:31:24 | Buenos Aires Eagles | | Promoted | Sean Lutz | Indianapolis Tornadoes |
| 2021-12-18 23:13:56 | Indianapolis Tornadoes | | Demoted | Dane Vaden | Buenos Aires Eagles |
| 2021-12-18 22:59:10 | Birmingham Venom | | Promoted | Enoch Madsen | Boston Bannerman |
| 2021-12-18 20:10:00 | San Francisco Golden Gators | 2nd round pick in season 33 | Acquired via trade | K.C. Ludwig | Dallas Hounds |
| 2021-12-18 20:10:00 | San Francisco Golden Gators | Dale Charity | Acquired via trade | Madden Arellano | Dallas Hounds |
| 2021-12-18 20:10:00 | San Francisco Golden Gators | German Thompson | Acquired via trade | | Dallas Hounds |
| 2021-12-18 20:10:00 | San Francisco Golden Gators | Marlon Riley | Acquired via trade | | Dallas Hounds |
| 2021-12-18 20:10:00 | San Francisco Golden Gators | Jack Charlton | Acquired via trade | | Dallas Hounds |
| 2021-12-18 20:08:00 | Salt Lake City Night Hawks | 3rd round pick in season 33 | Acquired via trade | Jay Ward | San Diego Sabercats |
| 2021-12-18 20:06:00 | San Francisco Golden Gators | Juanjose Williams | Acquired via trade | 3rd round pick in season 33 | Dallas Hounds |