| Date | Transaction |
| 05-02-2010 | The Miami Cobras have waived Brian Denson. |
| 05-02-2010 | The Miami Cobras have moved Mike Polk and Tony Everett to the active roster. The Miami Cobras have moved Brian Denson and Sammy Lueck to the inactive roster. |
| 01-03-2010 | The Miami Cobras have acquired Brian Denson from the waiver wire. |
| 08-04-2008 | The Providence Radiologist have waived Brian Denson. |
| 04-27-2008 | The Providence Radiologist have acquired Brian Denson from the waiver wire. |
| 09-02-2007 | The Cleveland Ironmen have waived Brian Denson. |
| 09-02-2007 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 08-13-2007 | The Cleveland Ironmen have waived Brian Denson. |
| 08-13-2007 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 08-21-2006 | The Cleveland Ironmen have waived Brian Denson. |
| 08-21-2006 | The Cleveland Ironmen have moved Roland Miles, Jim Stegmaier, Chuck Guy, Roger Ford, Gary Champagne, Audrey Bruce, Chris Romeo, Bill Story, D'Artagnan Marquis, Vernon Vanoy, Leland Glass, and Bobby McCrory to the active roster. The Cleveland Ironmen have moved Ray Schmarr, Frank Buncom, Stan Larson, Richie Aurora, Carl White, Tommy Joe Coffey, Garry Carter, Duncan Dinkel, Darryl Anderson, Brian Denson, Eddie Gillette, Joe Fortunato, Patrick Guy, Errol Linden, Phil Hardy, and Cordell Jells to the inactive roster. |
| 08-07-2006 | The Cleveland Ironmen have moved Jerry Wise, Larry Kelly, Brian Denson, Richie Aurora, Burt Hart, Cordell Jells, Ray Schmarr, Jim "Nacho Daddies" Chevrolet, Frank Buncom, Tony Adams, Patrick Guy, Marmaduke Trent, Garry Carter, Joe Fortunato, George Gwinn, Roger Rogers, Tommy Joe Coffey, Darryl Jessup, Grant Lee, Stan Larson, Jack Mackalavage, Duncan Dinkel, Henry Curtis, and Eddie Gillette to the active roster. The Cleveland Ironmen have moved D'Artagnan Marquis, Moe Racine, Bill Story, John Van Boxmeer, Bruce Elia, Lionel Antoine, Don Poppowell, Sam Ball, Ken Kortas, Rickey Orange, Audrey Bruce, Chris Romeo, Joe Niagara, Augie Pabst, Roland Miles, Joe Lukens, Lionel Taylor, Roger Ford, Rod Huntley, Vernon Vanoy, Jim Stegmaier, Bobby McCrory, Leland Glass, Chuck Guy, and Fair Hooker to the inactive roster. |
| 04-30-2006 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 04-30-2006 | The Cleveland Ironmen have waived Brian Denson. |
| 04-30-2006 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 04-30-2006 | The Cleveland Ironmen have waived Brian Denson. |
| 01-15-2006 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire; however, as he was traded or waived after the deadline and has not spent a full week on the wire, he will not be eligible for the postseason. |
| 01-15-2006 | The Cleveland Ironmen have waived Brian Denson. |
| 01-15-2006 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 08-15-2005 | The Cleveland Ironmen have waived Brian Denson. |
| 08-15-2005 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 08-17-2003 | The Cleveland Ironmen have automatically waived Brian Denson to comply with the 80-man roster limit. |
| 08-11-2003 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 08-11-2003 | The Cleveland Ironmen have moved Keith Dwyer to the inactive roster. |
| 08-11-2003 | The Cleveland Ironmen have waived Brian Denson. |
| 08-10-2003 | The Cleveland Ironmen have moved Brian Denson to the inactive roster. |
| 08-10-2003 | Brian Denson of the Cleveland Ironmen is injured with an ankle ligament sprain and is expected to be out for approximately 25 days. |
| 04-27-2003 | The Cleveland Ironmen have moved Bill McElroy, Henry Tanner, Brian Denson, Fred Godfrey, Clarence Crutcher, Jim Haddix, George Hogue, Justin Wilcox, Steve Stydahar, Leonard Kellogg, Ross Bjork, Wilbur Colter, Jim Cronkhite, Doug Moran, Artie Mitchell, Bill Lueck, Steve Thomas, and Mike Gibson to the active roster. The Cleveland Ironmen have moved Rockne Freitas, Cordell Jells, Rupe Andrew, Ralph Taylor, Bobby Isbell, Carl Parros, Keith Smith, Ray Mix, Chuck Guy, Tim Dobrus, Morris Titanic, Archie Griffin, Dat Claphan, Gary Wray, Max Finn, Mike Pinkett, Butch Fowler, Don Lamka, Golden Richards, and Art Clark to the inactive roster. |
| 04-27-2003 | The Cleveland Ironmen have acquired Brian Denson from the waiver wire. |
| 11-11-2001 | The San Diego Pirates have automatically waived Brian Denson to comply with the 53-man roster limit. |
| 08-27-2001 | The San Diego Pirates have moved Clyde Moore, Joe Johnson, Bob James, Rich Harris, and Oran Martin to the active roster. The San Diego Pirates have moved Brian Denson and Henry Curtis to the inactive roster. |
| 04-29-2001 | The San Diego Pirates have moved Brian Denson to the active roster. The San Diego Pirates have moved Brad Dvorak and Oran Martin to the inactive roster. |
| 09-04-2000 | The San Diego Pirates have moved Clyde Moore, Rich Harris, Mark Bailey, and Oran Martin to the active roster. The San Diego Pirates have moved Brian Denson to the inactive roster. |
| 08-07-2000 | The San Diego Pirates have moved Brian Denson and Brad Dvorak to the active roster. |
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