| Date | Transaction |
| 02-28-2007 | Billy Brown has retired from football. |
| 12-19-2005 | The San Diego Pirates have waived Billy Brown. |
| 05-01-2005 | The San Diego Pirates have acquired Billy Brown from the waiver wire. |
| 09-29-2002 | The Miami Mistborn have waived Billy Brown. |
| 09-23-2002 | The Miami Mistborn have moved Billy Brown to the inactive roster. |
| 08-12-2002 | The Miami Mistborn have moved Billy Brown and Pat Greene to the active roster. |
| 08-12-2002 | The Miami Mistborn have moved Chad Gilliam, Rod Woolsey, Merwin Etelman, Nick Banks, Keith Turner, and Paul Landry to the active roster. The Miami Mistborn have moved Cy Jackson, Charles Sawyer, Red Clancy, Ken Turner, Billy Brown, Daryl Cox, Tim Bedore, Blaine Boyarsky, and Mark Moore to the inactive roster. |
| 11-26-2000 | The Miami Mistborn have moved Bob Klein and Billy Brown to the active roster. The Miami Mistborn have moved Mike Harris and William Hall to the inactive roster. |
| 11-12-2000 | The Miami Mistborn have moved Tommy Lafleur, Patrick Guy, and Sam Heenan to the active roster. The Miami Mistborn have moved Jim Parks, Chris Gibbs, and Billy Brown to the inactive roster. |
| 09-10-2000 | The Miami Mistborn have moved John McManus, Cy Jackson, Jim Parks, and Billy Brown to the active roster. The Miami Mistborn have moved Tommy Lafleur and Sam Heenan to the inactive roster. |
| 09-19-1999 | The Miami Mistborn have moved Tommy Lafleur, Chris Gibbs, Clyde Posey, William Hall, Bake Gray, John Gilmore, Mike Harris, and Blaine Boyarsky to the active roster. The Miami Mistborn have moved Fred Lusk, Bob Klein, Mike Dunn, Reggie Elmendorf, Billy Brown, Chet Lumpkin, Emery Wolfley, Lou Prchlik, Terry Bauer, Derrick Alliston, and Karl Wolford to the inactive roster. |
| 12-06-1998 | The Miami Mistborn have moved Fred Lusk and Billy Brown to the active roster. The Miami Mistborn have moved Bruce Murray and Mark McClain to the inactive roster. |
| 09-13-1998 | The Miami Mistborn have moved Damion Dorsch, Jim Mertes, and Mark McClain to the active roster. The Miami Mistborn have moved Turk Gamble, Fred Lusk, and Billy Brown to the inactive roster. |
| 11-17-1997 | The Miami Mistborn have moved Fred Lusk and Billy Brown to the active roster. The Miami Mistborn have moved Bob Murphy and Tony Morgan to the inactive roster. |
| 11-17-1997 | The Miami Mistborn have acquired Billy Brown from the waiver wire. |
| 09-01-1997 | The Memphis Vanguard have moved Sonny Covington to the active roster. The Memphis Vanguard have moved Clem Casares to the inactive roster. |
| 09-01-1997 | The Memphis Vanguard have waived Billy Brown. |
| 09-01-1997 | The Memphis Vanguard have moved Joe Mumphord to the active roster. The Memphis Vanguard have moved Billy Brown to the inactive roster. |
| 08-05-1996 | The Memphis Knights have moved Marcus Rowell, Ossie Williams, Sonny Covington, Jack Adams, Billy Brown, Bob James, A.A. Wilson, Tom Taylor, Daryl Cox, Bill Frisch, and Troy Beasley to the active roster. The Memphis Knights have moved John Pidgeon, Drew Dyal, Clarence Crutcher, Bronzell Schmedding, Ricky Mello, Tomur Burnham, Jim Sander, Bill Whelan, and Sylvester Wilcox to the inactive roster. |
Wide Receiver