| Date | Transaction |
| 02-28-1979 | Joe Riordan has retired from football. |
| 09-01-1974 | The Nashville Sharks have moved Terry Waller and Blake Jones to the active roster. |
| 09-01-1974 | The Nashville Sharks have waived Joe Riordan. |
| 09-01-1974 | The Nashville Sharks have moved Mark Green and Al Costa to the active roster. The Nashville Sharks have moved Joe Riordan, Mitch Sunde, and Mike Tinglehoff to the inactive roster. |
| 10-28-1973 | Joe Riordan of the Nashville Sharks is injured with a knee derangement and is expected to be out for approximately 28 days. |
| 12-17-1972 | Joe Riordan of the Nashville Sharks is injured with a finger fracture and is expected to be out for approximately 18 days. |
| 08-10-1969 | The Nashville Sharks have moved Joe Riordan to the active roster. The Nashville Sharks have moved Jim James to the inactive roster. |
| 08-10-1969 | The Nashville Sharks have acquired Joe Riordan from the waiver wire. |
| 08-26-1968 | The Cleveland Ironmen have waived Joe Riordan. |
| 08-26-1968 | The Cleveland Ironmen have moved Night Train Tatum, Chuck Rhino, Frank Borden, Joe Stillwagon, Carleton Rule, Winston Gillette, Lionel Van Dyke, Jack Kramer, Deacon Robinson, Royce Bentley, Bob Adderley, Zeke Jeter, Robert Ford, Dale Casper, Rod Mercer, Kent Exline, Rocky Butkus, Clark Kellogg, and Duke Colavito to the active roster. The Cleveland Ironmen have moved Kevin Mayo, Joe Riordan, Ben Rowe, Rayfield Walker, Charlie Sledge, Bob Ruud, Xavier Clark, Roscoe Boone, Bruce Breeden, Bob Kowalkowski, Babe Rubino, Wally Arbuckle, Cedrick Bacon, Booker Alexrod, Duke Thomas, Max Ditka, Travis Hampton, Zack Sherriff, and Hap Davis to the inactive roster. |
| 08-12-1968 | The Cleveland Ironmen have moved Kevin Mayo, Joe Riordan, Ben Rowe, George Dorning, Charlie Sledge, Roscoe Boone, Elgin Tunnell, Babe Rubino, Essex Taylor, Bob Cooper, Lovett Meinert, Booker Alexrod, Bob Johnson, Max Ditka, Tommy Souders, and Tim Patton to the active roster. The Cleveland Ironmen have moved Night Train Tatum, Chuck Rhino, Joe Stillwagon, Carleton Rule, Lionel Van Dyke, Jack Kramer, Deacon Robinson, Royce Bentley, Goldie Teague, Bob Adderley, Zeke Jeter, Robert Ford, Joe Kramer, Kent Exline, Rocky Butkus, and Duke Colavito to the inactive roster. |
| 01-29-1968 | The Cleveland Ironmen have acquired Joe Riordan from the waiver wire. |
| 01-21-1968 | The Dallas Blah have waived Joe Riordan. |
| 01-14-1968 | The Dallas Blah have acquired Joe Riordan from the waiver wire. |
| 08-13-1967 | The Dallas Blah have waived Joe Riordan. |
| 01-30-1967 | The Dallas Blah have acquired Joe Riordan from the waiver wire. |
| 10-16-1966 | The Winnipeg Walrus have waived Joe Riordan. |
| 09-26-1966 | The Winnipeg Walrus have moved Gordon Rosato to the active roster. The Winnipeg Walrus have moved Joe Riordan to the inactive roster. |
| 09-18-1966 | The Winnipeg Walrus have moved Joe Riordan to the active roster. |
| 09-18-1966 | The Winnipeg Walrus have acquired Joe Riordan from the waiver wire. |
| 09-05-1966 | The Brooklyn Jesters have waived Joe Riordan. |
Safety