| Date | Transaction |
| 02-28-2029 | Clyde MacPhatter has retired from football. |
| 09-14-2025 | The Montreal Mastodon have automatically waived Clyde MacPhatter to comply with the 53-man roster limit. |
| 08-04-2025 | The Montreal Mastodon have moved Walter Morse to the active roster. The Montreal Mastodon have moved Clyde MacPhatter to the inactive roster. |
| 04-28-2024 | The Montreal Mastodon have moved Carl Miller and Clyde MacPhatter to the active roster. The Montreal Mastodon have moved John Greene and Mike Hicks to the inactive roster. |
| 04-28-2024 | The Montreal Mastodon have acquired Clyde MacPhatter from the waiver wire. |
| 08-21-2022 | The Cleveland Ironmen have automatically waived Clyde MacPhatter to comply with the 80-man roster limit. |
| 08-15-2022 | The Cleveland Ironmen have moved Jackie Belue, Frankie Kilmer, and Roy Lee Hill to the active roster. The Cleveland Ironmen have moved Clyde MacPhatter, Bake Turner, and Josh Ashton to the inactive roster. |
| 08-15-2022 | The Cleveland Ironmen have moved Clyde MacPhatter, Bake Turner, and Hank Libby to the active roster. |
| 08-15-2022 | The Cleveland Ironmen have acquired Clyde MacPhatter from the waiver wire. |
| 08-15-2022 | The Cleveland Ironmen have waived Clyde MacPhatter. |
| 08-15-2022 | The Cleveland Ironmen have acquired Clyde MacPhatter from the waiver wire. |
| 08-14-2022 | The Cleveland Ironmen have automatically waived Clyde MacPhatter to comply with the 80-man roster limit. |
| 08-08-2022 | The Cleveland Ironmen have moved Reggie Kubin, Joe Wheatley, Kelvin Hickey, Dick Peacock, Dennis Scarbath, Bob Brown, Horse Suminski, and Hub Shelburne to the active roster. The Cleveland Ironmen have moved Dave Costa, Al Tolar, Jack Cloud, Frank Zappa, Clyde MacPhatter, Darris McCord, Hubert Bobo, and Boo Bowie to the inactive roster. |
| 05-01-2022 | The Cleveland Ironmen have moved Roy Lee Hill, Dickie Post, Al Tolar, Mickey Slaughter, "Special Delivery" Jones, Al Griffen, Hugh Beaumont, Andy Devine, Forrest Tucker, Clyde MacPhatter, Mackey Sasser, Boo Bowie, and Gump Worsley to the active roster. The Cleveland Ironmen have moved Woody Peoples, Bake Turner, John Mackey, Tony Nancy, Essex Johnson, Jake Olsavsky, George Westinghouse, Bart Starr, Blaine Nye, Bruce Tarbox, Bobby Victor, Buzz Nutter, and Hank Libby to the inactive roster. |
| 05-01-2022 | The Cleveland Ironmen have changed Howard Eikenberg's name to Clyde MacPhatter. |
| 05-01-2022 | The Cleveland Ironmen have acquired Howard Eikenberg from the waiver wire. |
| 09-06-2021 | The Pittsburgh Piranhas have waived Howard Eikenberg. |
| 10-05-2020 | The Pittsburgh Piranhas have moved Ernie Grogan to the active roster. The Pittsburgh Piranhas have moved Howard Eikenberg to the inactive roster. |
| 09-07-2020 | The Pittsburgh Piranhas have moved Mackey Sasser, Dosey Moten, and Howard Eikenberg to the active roster. The Pittsburgh Piranhas have moved Ernie Grogan, Dan Jacoby, and Frank Gray to the inactive roster. |
| 08-10-2020 | The Pittsburgh Piranhas have moved Dan Jacoby, Matt Hopkins, Steve Widby, and Frank Gray to the active roster. The Pittsburgh Piranhas have moved Jack Williams, Dosey Moten, Howard Eikenberg, and Mackey Sasser to the inactive roster. |
| 08-06-2018 | The Las Vegas Silverados have moved Howard Eikenberg and Harry Osborn to the active roster. The Las Vegas Silverados have moved Cory Wade and Lincoln Kennedy to the inactive roster. |
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