| Date | Transaction |
| 02-28-1990 | Mack Calland has retired from football. |
| 08-22-1988 | The Washington Xenomorphs have waived Mack Calland. |
| 08-21-1988 | The Washington Xenomorphs have moved Kevin Annan, Joe Simon, Kevin Brown, Ron Barni, Billy Barber, Pete Kahler, Steve Forrest, Steve Mueller, Chase Jackson, Joe Sigurdson, Eugene Sloan, Alex Thomas, Malcolm Faulk, Steve Gurode, Drew Chamberlain, Gary Bethea, Mark Franklin, Devone Rivera, Harold Muhammad, and Jim Mitchell to the active roster. The Washington Xenomorphs have moved Bobby Odom, Billy Joe Joyce, Hal Putzier, Norman Rosenstiel, Chris Jolley, Ed Times, Mac Rembert, Jeff Seymour, Jim Cross, Eddie Garbarczyk, Ephraim Grant, Jimmy Saimes, Mack Calland, Bob Gradishar, Dan Stewart, Curt Nguyen, Bob Barnes, Charle Summerell, Fred Caleb, and Dee Caveness to the inactive roster. |
| 08-14-1988 | The Washington Xenomorphs have moved Honolulu Fanucci, Hal Putzier, Wilbur Cunningham, Daryl Jones, Curt Nguyen, John Watts, Jimmy Saimes, Bob Gradishar, Chris Jolley, Fred Caleb, Dee Caveness, Billy Joe Joyce, Eddie Garbarczyk, Mack Calland, Dan Stewart, Kerry Middleton, Duke Collins, Ed Times, Bobby Odom, Jeff Seymour, and Jim Cross to the active roster. The Washington Xenomorphs have moved Kevin Brown, Steve Mueller, Eugene Sloan, Kevin Annan, Joe Sigurdson, Pete Kahler, Alex Thomas, Mark Franklin, Alonzo Moss, Steve Forrest, Chase Jackson, Steve Gurode, Drew Chamberlain, Joe Simon, Malcolm Faulk, Harold Muhammad, Jim Mitchell, Billy Barber, Kyle Davis, Devone Rivera, and Ron Barni to the inactive roster. |
| 12-28-1987 | The Washington Xenomorphs have moved Jimmy Saimes, Jim Garden, Duke Collins, Jim Scott, and Jim Cross to the active roster. The Washington Xenomorphs have moved Eugene Sloan, Chase Jackson, Drew Chamberlain, Billy Barber, Mack Calland, and Norman Rosenstiel to the inactive roster. |
| 09-14-1987 | The Washington Xenomorphs have moved Mack Calland to the active roster. |
| 09-14-1987 | The Washington Xenomorphs have acquired Mack Calland from the waiver wire. |
| 09-06-1987 | The Tampa Bay PebbleBirds have moved Duane Pritchard, Brooks Knecht, and Bill Godfrey to the active roster. The Tampa Bay PebbleBirds have moved Al Cobbs, Gus Wyman, and Mike Barrow to the inactive roster. |
| 09-06-1987 | The Tampa Bay PebbleBirds have waived Mack Calland. |
| 08-05-1985 | The Tampa Bay PebbleBirds have moved Leomont Brewer, John Jordan, Sam Graves, Wally Duford, Casey McRoberts, and Al Cobbs to the active roster. The Tampa Bay PebbleBirds have moved Tyrone Clark, Frank Luke, Robert Noppenberg, Mack Calland, and Richard Lehrer to the inactive roster. |
| 12-30-1984 | Mack Calland of the Tampa Bay PebbleBirds is injured with an ankle ligament sprain and is expected to be out for approximately 26 days. |
| 11-21-1982 | The Boston Copperheads have placed Mack Calland on the trade block. |
| 10-07-1979 | Mack Calland of the Boston Copperheads is injured with an ankle ligament sprain and is expected to be out for approximately 17 days. |
| 08-09-1976 | The Boston Copperheads have moved Mack Calland, Frank Howard, and Steve Slackford to the active roster. |
Safety