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| 2021-02-17 13:45:26 | San Francisco Golden Gators | | Demoted | Douglas Elder | Little Rock Fighting Farmers |
| 2021-02-17 07:16:48 | Sacramento Rainbow Trout | | Drop | Nathella Brash | |
| 2021-02-15 19:13:00 | Portland Hipsters | Dale Fisher | Add/Drop | Franklin Grammer | |
| 2021-02-15 06:23:32 | San Diego Sabercats | | Drop | Kenneth Curry | |
| 2021-02-15 05:26:06 | Santiago Sharks | | Promoted | Julio Tung | San Diego Sabercats |
| 2021-02-14 12:15:14 | New York Warriors | | Demoted | Arthur Washer | Hartford Hebrew Hammers |
| 2021-02-14 12:14:48 | Hartford Hebrew Hammers | | Promoted | Frederick Sciortino | New York Warriors |
| 2021-02-14 11:54:00 | San Francisco Golden Gators | Duane Dunn | Acquired via waivers | | Waiver |
| 2021-02-14 11:54:00 | New York Warriors | Arthur Washer | Acquired via waivers | Gerald Campbell | Waiver |
| 2021-02-14 05:33:28 | South Dakota Blackhawks | | Promoted | Tyreek McGee | Philadelphia Assassins |
| 2021-02-14 05:32:16 | Philadelphia Assassins | | Drop | Charles Tyrrell | |
| 2021-02-13 20:48:34 | Baltimore Miners | | Drop | Justinas Staligis | |
| 2021-02-13 20:36:00 | Baltimore Miners | | Demoted | Reggie Wagner | Green Bay Miners |
| 2021-02-13 17:10:06 | New Orleans Hurricanes | | Demoted | Maury Matthews | Detroit Gear Daddies |
| 2021-02-13 16:53:34 | Detroit Gear Daddies | | Promoted | Cyril Mccusker | New Orleans Hurricanes |
| 2021-02-13 14:58:56 | Louisville Colonels | | Drop | Paris Wheat | |
| 2021-02-12 18:18:54 | San Antonio Brothas | | Drop | George Neil | |
| 2021-02-12 16:04:00 | Salt Lake City Night Hawks | Joseph Sandoval | Acquired via trade | Wayne Cleland | Minneapolis Bricklayers |
| 2021-02-12 15:00:50 | Toronto Huskies | | Promoted | Joseph Sandoval | Salt Lake City Night Hawks |
| 2021-02-12 15:00:22 | Salt Lake City Night Hawks | | Demoted | Damon Donovan | Toronto Huskies |
| 2021-02-12 14:38:50 | San Francisco Golden Gators | | Drop | Chad Sanchez | |
| 2021-02-12 14:38:40 | Minneapolis Bricklayers | | Demoted | Wayne Cleland | Santo Domingo Lazy Dogs |
| 2021-02-12 14:35:40 | Santo Domingo Lazy Dogs | | Promoted | Roland Leonard | Minneapolis Bricklayers |
| 2021-02-11 13:04:26 | Nashville Night Owls | | Promoted | Gani Lawal | Miami Macho Men |
| 2021-02-11 12:51:02 | Miami Macho Men | | Demoted | Patrick Overton | Nashville Night Owls |