| Date | Transaction |
| 02-28-2050 | Johnny Matheson has retired from football. |
| 01-10-2050 | The St. Louis Cardinals have waived Johnny Matheson. |
| 09-06-2049 | The St. Louis Cardinals have moved Johnny Matheson to the active roster. The St. Louis Cardinals have moved Ted Davis to the inactive roster. |
| 09-06-2049 | The St. Louis Cardinals have acquired Johnny Matheson from the waiver wire. |
| 08-29-2049 | The Memphis Mephitic Miasma have waived Johnny Matheson. |
| 08-23-2048 | The Memphis Mephitic Miasma have moved Var Mint, Tom Rairden, Paul Brown, and Headley LaMar to the active roster. The Memphis Mephitic Miasma have moved Johnny Matheson and Forest Aginnis to the inactive roster. |
| 01-05-2048 | The Memphis Mephitic Miasma have moved Drawers Adroup, King Faraday, Johnny Matheson, Kris P. Kritter, and Major Response to the active roster. The Memphis Mephitic Miasma have moved Vickey Harvin, Ted Gildea, Ronnie Bouchard, Paul Brown, and Thomas Thomas to the inactive roster. |
| 11-03-2047 | The Memphis Mephitic Miasma have moved Joe Mamba, Whizzer Downdere, Tickler Tuggnutt, and Harrummphf to the active roster. The Memphis Mephitic Miasma have moved Kris P. Kritter, Johnny Matheson, Jack Smit, and I. Schitchunott to the inactive roster. |
| 09-16-2046 | The Memphis Mephitic Miasma have moved Johnny Matheson to the active roster. The Memphis Mephitic Miasma have moved Ethan Brown to the inactive roster. |
| 09-10-2046 | The Memphis Mephitic Miasma have acquired Johnny Matheson from the waiver wire. |
| 09-03-2046 | The Miami Megalodons have waived Johnny Matheson. |
| 08-13-2045 | The Miami Megalodons have moved Larry Roberts, Charles Daddio, Lavie Ameche, and Brian McCullough to the active roster. The Miami Megalodons have moved Bo Harvey, Stanley Megna, Rob Holzer, Johnny Matheson, Boris Barrett, and Paul Burch to the inactive roster. |
| 12-05-2044 | The Providence Punch-Drunk have reverted Jo Joe's name to Johnny Matheson. |
| 10-05-2043 | The Providence Punch-Drunk have moved Jo Joe to the active roster. The Providence Punch-Drunk have moved Red Hemo to the inactive roster. |
| 08-30-2043 | The Providence Punch-Drunk have changed Johnny Matheson's name to Jo Joe. |
| 08-30-2043 | The Providence Punch-Drunk have reverted Johnny Matheson's name to Johnny Matheson. |
| 12-22-2042 | The Providence Punch-Drunk have acquired Johnny Matheson from the waiver wire. |
| 12-21-2042 | The Providence Punch-Drunk have automatically waived Johnny Matheson to comply with the 53-man roster limit. |
| 12-08-2042 | The Providence Punch-Drunk have acquired Johnny Matheson from the waiver wire. |
| 12-07-2042 | The Providence Punch-Drunk have automatically waived Johnny Matheson to comply with the 53-man roster limit. |
| 10-27-2042 | The Providence Punch-Drunk have acquired Johnny Matheson from the waiver wire. |
| 10-26-2042 | The Montreal Mastodon have automatically waived Johnny Matheson to comply with the salary cap limit. |
| 08-31-2042 | The Montreal Mastodon have moved Don Haygood to the active roster. The Montreal Mastodon have moved Johnny Matheson to the inactive roster. |
| 12-11-2039 | Johnny Matheson of the Montreal Mastodon is injured with a knee derangement and is expected to be out for approximately 21 days. |
| 08-08-2039 | The Montreal Mastodon have moved Johnny Matheson to the active roster. The Montreal Mastodon have moved Vagas Howard to the inactive roster. |
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