| Date | Transaction |
| 02-28-2005 | Mike Olsen has retired from football. |
| 01-30-2005 | The Cleveland Ironmen have waived Mike Olsen. |
| 01-30-2005 | The Cleveland Ironmen have acquired Mike Olsen from the waiver wire. |
| 09-06-2004 | The Tulsa Osage have waived Mike Olsen. |
| 08-31-2003 | The Tulsa Osage have moved Kevin Majors, Brad Flaherty, Mike Olsen, Jim Corey, and Ben Hennings to the active roster. The Tulsa Osage have moved Wayne Tuckett, Frank McCullough, Larron Klimek, and Roger Cross to the inactive roster. |
| 08-04-2003 | The Tulsa Osage have moved Dana Carroll, Larron Klimek, Trevor Drake, Leonard Hand, Dana Morris, Monk Johnson, Roger Cross, Frank McCullough, and John Blackman to the active roster. The Tulsa Osage have moved Kareem Schneider, Kevin Majors, Mike Olsen, George Panciera, Brad Flaherty, Ben Hennings, Mickey Johnson, David Adams, and Jim Corey to the inactive roster. |
| 09-02-2002 | The Tulsa Osage have moved Moses Winfrey, Mike Olsen, George Panciera, Steve Baumgartner, Ben Hennings, and Bob Johnson to the active roster. The Tulsa Osage have moved Dana Carroll, Monk Johnson, and David Adams to the inactive roster. |
| 08-05-2002 | The Tulsa Osage have moved John Sabados, James Magerkurth, Monk Johnson, Gary Carroll, David Holmes, Dana Carroll, and Steve Atcheson to the active roster. The Tulsa Osage have moved Mike Olsen, George Panciera, Bob Johnson, Raymond Simington, Moses Winfrey, Steve Baumgartner, Ben Hennings, Tony Linden, and Tony Burns to the inactive roster. |
| 10-28-2001 | Mike Olsen of the Tulsa Osage is injured with a leg contusion and is expected to be out for approximately 2 days. |
| 09-04-2000 | The Tulsa Osage have moved Raymond Simington, Mike Olsen, Dave Suggs, and Larry Wolfley to the active roster. The Tulsa Osage have moved Dennis Kelly, Jack Seborg, Monk Johnson, and Bob Davis to the inactive roster. |
| 08-07-2000 | The Tulsa Osage have moved Jack Seborg, Mario Miller, Mark Stribling, and Bob Davis to the active roster. The Tulsa Osage have moved Raymond Simington, Mike Olsen, Bill Lynch, and Larry Wolfley to the inactive roster. |
| 09-12-1999 | The Tulsa Osage have moved Henry Tanner, Mike Olsen, Larry Wolfley, Mickey Johnson, Tony Linden, and Tra'Davious Young to the active roster. The Tulsa Osage have moved Joe Holland, Mario Miller, and Billy Henry to the inactive roster. |
| 08-09-1999 | The Tulsa Osage have moved Brett Del Bello, George Davis, Charlie Hickey, Clyde Holloway, Roy Zaeske, Les Stringer, and Mario Miller to the active roster. The Tulsa Osage have moved Henry Tanner, Mike Taylor, Mike Olsen, Tra'Davious Young, Hines Murphy, Larry Wolfley, Steve Thomas, and Tony Linden to the inactive roster. |
| 09-06-1998 | The Tulsa Osage have moved Raymond Simington, Henry Tanner, Mike Olsen, Roger Riggins, and Tra'Davious Young to the active roster. The Tulsa Osage have moved Benny Rizzo, Jack Seborg, Keith Carter, Mario Miller, and Babe Duncan to the inactive roster. |
| 08-10-1998 | The Tulsa Osage have moved Albert Mathews, Roger Olive, Mario Miller, Rick Bond, and Bob Davis to the active roster. The Tulsa Osage have moved Mike Olsen, Roger Riggins, Firpo Whitten, Larry Wolfley, and Robert Bryant to the inactive roster. |
| 01-11-1998 | The Tulsa Osage have placed Mike Olsen on the Injured Reserve list for the remainder of the season. |
| 01-11-1998 | The Tulsa Osage have moved Dennis Kelly to the active roster. The Tulsa Osage have moved Mike Olsen to the inactive roster. |
| 01-11-1998 | Mike Olsen of the Tulsa Osage is injured with an ankle ligament sprain and is expected to be out for approximately 17 days. |
| 08-25-1997 | The Tulsa Osage have moved Mike Olsen to the active roster. |
| 08-04-1997 | The Tulsa Osage have moved Jack Seborg, Keith Carter, Floyd Ledyard, Vic Walczak, Horace Nemecek, Albert Mathews, Bob Terry, Billy Henry, Mickey Johnson, and Lemuel Paternoster to the active roster. The Tulsa Osage have moved Henry Tanner, Mike Taylor, Mike Olsen, Steve Thomas, Firpo Whitten, Fred Fugler, Tony Morgan, Mark Calloway, Rod Parks, and Leon Hester to the inactive roster. |
| 09-02-1996 | The Tulsa Osage have moved Mike Olsen and Leon Hester to the active roster. The Tulsa Osage have moved Dave Suggs and Bob Davis to the inactive roster. |
| 08-05-1996 | The Tulsa Osage have moved Brad Flaherty, Bob Davis, Billy Henry, and Jimmy Jackson to the active roster. The Tulsa Osage have moved Mike Olsen, Dave Suggs, Glen DeLuca, and Leon Hester to the inactive roster. |
| 10-23-1995 | The Tulsa Osage have moved Mike Olsen and Roger Rogers to the active roster. The Tulsa Osage have moved Kris Hoaglin and Jim Corey to the inactive roster. |
| 10-09-1995 | The Tulsa Osage have moved Bill Lynch to the active roster. The Tulsa Osage have moved Mike Olsen to the inactive roster. |
| 10-08-1995 | Mike Olsen of the Tulsa Osage is injured with an ACL sprain and is expected to be out for approximately 19 days. |
| 09-13-1993 | The Tulsa Osage have moved Mike Olsen to the active roster. The Tulsa Osage have moved Bill Dieter to the inactive roster. |
| 09-12-1993 | Trade #77305 has been completed between the Tulsa Osage and the Montreal Mastodon. The Montreal Mastodon receive Reggie Boden (G), Draft Pick - 1995 Round 3 (TOR) from the Tulsa Osage in exchange for Mike Olsen (RB). |
| 08-29-1993 | The Montreal Mastodon have moved Sam Etcheverry, Joe Strong, and Johnny Morris to the active roster. The Montreal Mastodon have moved Mike Olsen to the inactive roster. |
| 08-09-1993 | The Montreal Mastodon have moved Mike Olsen to the active roster. |
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