| Date | Transaction |
| 02-28-2107 | Darrin Harris has retired from football. |
| 08-10-2105 | The Denver Broncos have waived Darrin Harris. |
| 08-10-2105 | The Denver Broncos have moved George Brewer, Frank Turley, Jerry Fichtel, Eddie Rukas, Lynn Boone, Randy Johnson, Harry Watts, Bob Eilers, Jim Woodbury, Tom Henley, Lionel McDonald, and Randy Eshmont to the active roster. The Denver Broncos have moved Gill Jonas, Ron Kassel, Dunc Harris, Hull Lusk, Lee Garrett, Herman Marker, Malcolm Heck, Darrin Harris, Leonard Hunter, George Wire, Joe McElroy, and Ron Andrie to the inactive roster. |
| 12-21-2099 | The Los Angeles Sirians have moved Thug O'Motive, Darrin Harris, and Carl Staggers to the active roster. The Los Angeles Sirians have moved Willie Tate, Charley Paulekas, and Arland Chukwuma to the inactive roster. |
| 12-14-2099 | The Los Angeles Sirians have moved Charley Paulekas, Hull Lusk, and Lee Garrett to the active roster. The Los Angeles Sirians have moved Darrin Harris, Dick Winslow, and Thug O'Motive to the inactive roster. |
| 12-13-2099 | Darrin Harris of the Los Angeles Sirians is injured with a quadricep contusion and is expected to be out for approximately 11 days. |
| 10-05-2099 | The Los Angeles Sirians have moved Darrin Harris to the active roster. |
| 09-07-2099 | The Los Angeles Sirians have moved Richard Logan, Frank Pickens, Dick Winslow, Tony McElroy, Johnny Austin, Andy Keen, Herman Marker, Norm Glenn, Walt Huff, Terry Mitchell, Trent Steinfort, Raymond Farina, Ramos James, Pat Tamburello, and Frank Zeller to the active roster. The Los Angeles Sirians have moved James Baty, Karl Oliver, Brock Zachary, Ken-Yon McGlasson, Hull Lusk, Darrin Harris, Tom Calhoun, John Schmidt, Jamal Folkins, Clarence Smith, and Bob Clow to the inactive roster. |
| 08-30-2099 | The Los Angeles Sirians have moved Ken-Yon McGlasson, Hull Lusk, Darrin Harris, and John Schmidt to the active roster. The Los Angeles Sirians have moved Richard Logan, Johnny Austin, Terry Mitchell, and Ramos James to the inactive roster. |
| 11-09-2098 | The Los Angeles Sirians have moved Dick Winslow to the active roster. The Los Angeles Sirians have moved Darrin Harris to the inactive roster. |
| 10-20-2098 | The Los Angeles Sirians have moved Darrin Harris to the active roster. The Los Angeles Sirians have moved Dick Winslow to the inactive roster. |
| 10-13-2098 | The Los Angeles Sirians have acquired Darrin Harris from the waiver wire. |
| 09-15-2098 | The Arizona Cylons have waived Darrin Harris. |
| 09-14-2098 | The Arizona Cylons have moved Lee Garrett to the active roster. The Arizona Cylons have moved Darrin Harris to the inactive roster. |
| 08-18-2098 | The Arizona Cylons have moved Darrin Harris to the active roster. |
| 08-18-2098 | The Arizona Cylons have acquired Darrin Harris from the waiver wire. |
| 08-10-2098 | The Cleveland Tigers have moved Tim Asher and Gary Johnson to the active roster. |
| 08-10-2098 | The Cleveland Tigers have waived Darrin Harris. |
Tight End