| Date | Transaction |
| 02-28-2012 | Mike Engebretsen has retired from football. |
| 09-05-2011 | The San Diego Sun Devils have waived Mike Engebretsen. |
| 09-03-2007 | The San Diego Sun Devils have moved Mike Engebretsen to the active roster. |
| 09-03-2007 | The San Diego Sun Devils have acquired Mike Engebretsen from the waiver wire. |
| 08-26-2007 | The Los Angeles Marauders have waived Mike Engebretsen. |
| 04-29-2007 | The Los Angeles Marauders have moved Mike Engebretsen, George Myer, and Kendrell Bowles to the active roster. The Los Angeles Marauders have moved John Shonk, Hamilton Sander, and Willie Wonka to the inactive roster. |
| 09-04-2006 | The Los Angeles Marauders have placed Mike Engebretsen on the trade block. |
| 09-04-2006 | The Los Angeles Marauders have moved Don Mack to the active roster. The Los Angeles Marauders have moved Mike Engebretsen to the inactive roster. |
| 11-14-2005 | The Seattle Marauders have moved Mike Engebretsen to the active roster. The Seattle Marauders have moved Ralph Sanderson to the inactive roster. |
| 10-24-2005 | The Seattle Marauders have moved David Trahan to the active roster. The Seattle Marauders have moved Mike Engebretsen to the inactive roster. |
| 10-23-2005 | Mike Engebretsen of the Seattle Marauders is injured with an ankle ligament sprain and is expected to be out for approximately 20 days. |
| 08-29-2005 | The Seattle Marauders have moved Mike Engebretsen to the active roster. |
| 08-08-2005 | The Seattle Marauders have moved Alshermond Benjamin and Jackie Singleton to the active roster. The Seattle Marauders have moved Guy Green and Mike Engebretsen to the inactive roster. |
| 11-22-2004 | The Boston Patriots have moved Mike Engebretsen and Herm Harvey to the active roster. |
| 11-08-2004 | The Boston Patriots have moved Jack Byrd, David Trahan, Ken Stallworth, and Lou Stracka to the active roster. The Boston Patriots have moved Van Malone, Mike Engebretsen, Jim Hopkins, and Herm Harvey to the inactive roster. |
| 09-13-2004 | The Boston Patriots have moved David Trahan, Herm Harvey, Mike Engebretsen, and Jerramy Kerner to the active roster. |
| 09-13-2004 | The Boston Patriots have moved Jack Byrd, Jerramy Kerner, Mike Engebretsen, and David Trahan to the inactive roster. |
| 09-05-2004 | The Boston Patriots have moved Jerramy Kerner, Mike Engebretsen, and David Trahan to the active roster. |
| 09-05-2004 | The Boston Patriots have moved Jack Byrd, Jerramy Kerner, and Mike Engebretsen to the inactive roster. |
| 12-14-2003 | The Baltimore Riots have moved Jerramy Kerner, Willie Morrison, Mike Engebretsen, and Tim Jones to the active roster. |
| 12-14-2003 | The Baltimore Riots have moved Pete Wendlick, Tim Jones, Mike Engebretsen, and Jerramy Kerner to the inactive roster. |
| 11-23-2003 | Mike Engebretsen of the Baltimore Riots is injured with a wrist inflammation and is expected to be out for approximately 9 days. |
| 08-04-2003 | The Kansas City Kayfabe have moved Pete Wendlick, Jerramy Kerner, Mike Engebretsen, and Jack Byrd to the active roster. |
| 08-04-2003 | The Kansas City Kayfabe have moved Lee Benfatti, Dick Bassett, Loyd Burns, and O.J. Brannon to the active roster. The Kansas City Kayfabe have moved Pete Wendlick, Mike Engebretsen, Bob Kindricks, and Jack Byrd to the inactive roster. |
| 09-09-2002 | The Kansas City Kayfabe have moved Mike Engebretsen, Bob Kindricks, Jack Byrd, and Pete Wendlick to the active roster. |
| 09-09-2002 | The Kansas City Kayfabe have acquired Mike Engebretsen from the waiver wire. |
| 09-02-2002 | The Miami Cobras have moved Alonzo Robertson to the active roster. The Miami Cobras have moved Santo Bucher to the inactive roster. |
| 09-02-2002 | The Miami Cobras have waived Mike Engebretsen. |
Defensive Tackle