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| 2023-08-23 00:00:00 | San Diego Sabercats | | Drop | Devan McLean | |
| 2023-08-23 00:00:00 | San Diego Sabercats | | Drop | Dustin Williams | |
| 2023-08-23 00:00:00 | Indianapolis Tornadoes | | Demoted | Juan Kirkland | Buenos Aires Eagles |
| 2023-08-23 00:00:00 | Indianapolis Tornadoes | | Demoted | Michael Walker | Buenos Aires Eagles |
| 2023-08-23 00:00:00 | Miami Macho Men | | Drop | Joseph Moreno | |
| 2023-08-23 00:00:00 | Caracas Crocodiles | | Promoted | Joseph McDermott | St. Louis 5th Alarm |
| 2023-08-23 00:00:00 | St. Louis 5th Alarm | | Demoted | Joshua Curtis | Caracas Crocodiles |
| 2023-08-23 00:00:00 | St. Louis 5th Alarm | | Demoted | Jason Riley | Caracas Crocodiles |
| 2023-08-23 00:00:00 | St. Louis 5th Alarm | | Demoted | Brandon Roselli | Caracas Crocodiles |
| 2023-08-23 00:00:00 | St. Louis 5th Alarm | | Demoted | Caden Henley | Caracas Crocodiles |
| 2023-08-22 17:23:39 | San Diego Sabercats | Ryan Budz | Acquired via trade | 2nd round pick in season 37 | St. Louis 5th Alarm |
| 2023-08-22 08:12:48 | Memphis Express | 2nd round pick in season 37 | Acquired via trade | 2nd round pick in season 37 | Minneapolis Bricklayers |
| 2023-08-22 00:00:00 | Charlotte Rangers | | Demoted | Mark Meeks | Rio de Janeiro Red Storm |
| 2023-08-22 00:00:00 | Knoxville Wampus Cats | | Promoted | Christian Lightfoot | Las Vegas Dark Knights |
| 2023-08-22 00:00:00 | Las Vegas Dark Knights | | Demoted | Kyle Fletcher | Knoxville Wampus Cats |
| 2023-08-22 00:00:00 | Rio de Janeiro Red Storm | | Promoted | Xavier Stewart | Charlotte Rangers |
| 2023-08-22 00:00:00 | Las Vegas Dark Knights | | Demoted | Noah Tyson | Knoxville Wampus Cats |
| 2023-08-22 00:00:00 | Rio de Janeiro Red Storm | | Promoted | Logan Davis | Charlotte Rangers |
| 2023-08-22 00:00:00 | Salt Lake City Night Hawks | | Demoted | Justin Kinsley | Toronto Huskies |
| 2023-08-22 00:00:00 | Salt Lake City Night Hawks | | Demoted | Cole Bell | Toronto Huskies |
| 2023-08-22 00:00:00 | Salt Lake City Night Hawks | | Demoted | Austin Wolfe | Toronto Huskies |
| 2023-08-22 00:00:00 | Atlanta Eels | | Demoted | Jason Baggett | Tampa Runner-ups |
| 2023-08-22 00:00:00 | Philadelphia Assassins | | Demoted | Dillan Raatz | South Dakota Blackhawks |
| 2023-08-22 00:00:00 | Philadelphia Assassins | | Demoted | Jonathon Martin | South Dakota Blackhawks |
| 2023-08-22 00:00:00 | Philadelphia Assassins | | Demoted | Joshua Buck | South Dakota Blackhawks |