| Date | Transaction |
| 02-28-2005 | Leonard Kellogg has retired from football. |
| 01-30-2005 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 01-30-2005 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 08-15-2004 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 80-man roster limit. |
| 08-09-2004 | The Cleveland Ironmen have moved Wentford Lambeau, Harry Brown, Al Komlo, Jack Riley, Fred Klapstein, Ron Egan, Claude Maas, and Shelton Tuaolo to the active roster. The Cleveland Ironmen have moved Bryan Graham, Jim Haddix, George Andrie, Leonard Kellogg, Wilbur Colter, Bob James, Ron Bentz, and Pat Darrow to the inactive roster. |
| 05-02-2004 | The Cleveland Ironmen have moved Eddie Gillette, Leonard Kellogg, Tony Campion, Jim Haddix, Burt Hart, and Darian Jackson to the active roster. The Cleveland Ironmen have moved Archie Griffin, Chuck Guy, Ki-Jana Bentley, Don Lamka, Cordell Jells, and Mike Pinkett to the inactive roster. |
| 05-02-2004 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 05-02-2004 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 01-11-2004 | The Cleveland Ironmen have acquired Leonard Kellogg 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. |
| 01-11-2004 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 01-11-2004 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 08-24-2003 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 65-man roster limit. |
| 08-18-2003 | The Cleveland Ironmen have moved Kenyon Slaughter, Rankin Hunley, Duane Smith, Rockne Freitas, Rupe Andrew, Ralph Taylor, Ziggy Czarobski, Izzy Lang, Tom Noble, Chuck Guy, Tim Dobrus, Dat Claphan, and Art Clark to the active roster. The Cleveland Ironmen have moved Greg Mayer, Reggie Grimes, Henry Tanner, Steve Stydahar, Leonard Kellogg, Donnie Pearson, Rod Gunner, Jim Cronkhite, Wally Chambers, Carlos Johnson, Ken Ecklund, Ron Songin, Dan Moore, Bill Lueck, and Steve Thomas to the inactive roster. |
| 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. |
| 01-26-2003 | The Cleveland Ironmen have acquired Leonard Kellogg 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. |
| 01-26-2003 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 12-30-2002 | The Cleveland Ironmen have acquired Leonard Kellogg 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. |
| 12-30-2002 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 12-30-2002 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 08-25-2002 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 65-man roster limit. |
| 08-19-2002 | The Cleveland Ironmen have moved Ralph Taylor, Greg Mayer, Dat Claphan, Ray Mix, Keith Smith, Richard Wilner, Chris Romeo, Ziggy Czarobski, Kenyon Slaughter, Don Lamka, and Big Daddy Lipscomb to the active roster. The Cleveland Ironmen have moved Clarence Crutcher, Sylvester Wilcox, Leonard Kellogg, Rod Gunner, Donnie Pearson, Wilbur Colter, Clyde Holloway, Jim Cronkhite, Joe Record, John Lott, Al Sanchez, John Joe, Richard Langhorne, Rod Majors, and Rich Shepherd to the inactive roster. |
| 04-28-2002 | The Cleveland Ironmen have moved Henry Tanner, Whitney Allen, Clarence Crutcher, Jim Haddix, Burt Hart, Terrelle Henry, Leonard Kellogg, Joe Record, Ross Bjork, Wilbur Colter, Perry Patten, David Houston, Jim Cronkhite, Lee Falls, Artie Mitchell, Larry Crawford, and Mike Gibson to the active roster. The Cleveland Ironmen have moved Cordell Jells, Rupe Andrew, Bobby Isbell, Keith Smith, Ray Mix, Tim Dobrus, Morris Titanic, Archie Griffin, Richard Wilner, Dat Claphan, Gary Wray, Max Finn, Mike Pinkett, Butch Fowler, Don Lamka, Golden Richards, and Albert Signaigo to the inactive roster. |
| 04-28-2002 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 09-03-2001 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 09-03-2001 | The Cleveland Ironmen have moved Rockne Freitas, Cordell Jells, Doug Van Horn, Morris Titanic, Archie Griffin, Gary Wray, Don Lamka, and Golden Richards to the active roster. The Cleveland Ironmen have moved David Reagan, Jim Haddix, Leonard Kellogg, Tony Campion, Joe Record, Perry Patten, Fred James, and Art Clark to the inactive roster. |
| 08-20-2001 | The Cleveland Ironmen have moved Jim Dalton and Leonard Kellogg to the active roster. |
| 08-20-2001 | The Cleveland Ironmen have moved Kenyon Slaughter, Fred Godfrey, Terrelle Henry, and Sylvester Wilcox to the active roster. The Cleveland Ironmen have moved Bob Barber, Leonard Kellogg, Leon Crow, Clyde Holloway, Larry Friday, Clendon St.Louis, Mick Hooks, and Mark Moore to the inactive roster. |
| 04-29-2001 | The Cleveland Ironmen have moved Bo Badger, Lavon Rush, Leonard Kellogg, and Russ Quaccia to the active roster. The Cleveland Ironmen have moved Larry Ford, Ralph Taylor, Hull Whelan, and Moses Branch to the inactive roster. |
| 04-29-2001 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 04-29-2001 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 04-29-2001 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 04-29-2001 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 04-29-2001 | The Cleveland Ironmen have moved Chukky Shipp, Bo Badger, Leonard Kellogg, Tony Campion, and Jim Paul to the active roster. The Cleveland Ironmen have moved Cordell Jells, Archie Griffin, Mike Pinkett, Don Lamka, and Albert Signaigo to the inactive roster. |
| 04-29-2001 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 12-17-2000 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 53-man roster limit. |
| 12-11-2000 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 12-10-2000 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 53-man roster limit. |
| 12-04-2000 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 10-29-2000 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 53-man roster limit. |
| 10-23-2000 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 10-23-2000 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 10-23-2000 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 10-15-2000 | The Cleveland Ironmen have automatically waived Leonard Kellogg to comply with the 53-man roster limit. |
| 10-02-2000 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 10-02-2000 | The Cleveland Ironmen have waived Leonard Kellogg. |
| 10-02-2000 | The Cleveland Ironmen have acquired Leonard Kellogg from the waiver wire. |
| 08-27-2000 | The New England Red Soxx have waived Leonard Kellogg. |
| 08-22-1999 | The New England Red Soxx have acquired Leonard Kellogg from the waiver wire. |
Running Back