| Date | Transaction |
| 02-28-1988 | Ray Calvin has retired from the Buffalo Bisons. |
| 10-12-1987 | The Buffalo Bisons have moved Trenton Cabrelli to the active roster. The Buffalo Bisons have moved Ray Calvin to the inactive roster. |
| 10-04-1987 | The Buffalo Bisons have moved Ray Calvin to the active roster. The Buffalo Bisons have moved Trenton Cabrelli to the inactive roster. |
| 09-06-1987 | The Buffalo Bisons have moved Pug Brown to the active roster. The Buffalo Bisons have moved Ray Calvin to the inactive roster. |
| 08-30-1982 | The Buffalo Bisons have moved Ray Calvin to the active roster. |
| 05-02-1982 | The Buffalo Bisons have acquired Ray Calvin from the waiver wire. |
| 09-06-1981 | The Washington Xenomorphs have waived Ray Calvin. |
| 09-06-1981 | The Washington Xenomorphs have moved Kurt Saunooke, A.B. Blackwell, Joe Grant, Joe Sigurdson, Steve Forrest, Chad McKalip, Chase Jackson, Joe Stewart, Ken Williams, Bob Beverly, Shawn Sanders, Terry Mitchell, John Briggs, Hessley Brigance, Dave Richardson, Al Bailey, Tyrus Lee, Bill Nichols, Halvor Elway, and Anthony Traynowicz to the active roster. The Washington Xenomorphs have moved Steve Noga, Bob Duckett, Lee Rule, Carl Beach, Al McMillan, Dan Breitenstein, John McPhee, Ken Reader, Pete Phifer, Wuert Johnson, Raymond Rose, Norman Rosenstiel, Byron Diggs, Tom Tobin, Ray Calvin, Al King, Jarvis Mark, Dee Johnson, Louis Nwokorie, and Bill Curry to the inactive roster. |
| 08-30-1981 | The Washington Xenomorphs have moved Herman Olenchalk, Carl Beach, Ken Reader, Buchanan Barnes, Jarvis Mark, Tom Tobin, Dee Johnson, Ray Calvin, Gene Atkins, John McPhee, Louis Nwokorie, Pete Phifer, Lee Rule, Al King, Dan Breitenstein, Wuert Johnson, Lakei Woodbury, Byron Diggs, and Bill Curry to the active roster. The Washington Xenomorphs have moved Dave Richardson, Bill Nichols, Joe Sigurdson, John Briggs, Steve Forrest, Chase Jackson, Al Bailey, Tyrus Lee, Halvor Elway, Ken Williams, Joe Grant, Kurt Saunooke, Bob Beverly, Terry Mitchell, Hessley Brigance, A.B. Blackwell, Anthony Traynowicz, Chad McKalip, and Shawn Sanders to the inactive roster. |
| 08-23-1981 | The Washington Xenomorphs have moved Kurt Saunooke, Norman Rosenstiel, A.B. Blackwell, Joe Grant, Hessley Brigance, Chad McKalip, Anthony Traynowicz, Steve Forrest, Ken Williams, Chase Jackson, Dave Richardson, Joe Sigurdson, Terry Mitchell, George Barnes, Al Bailey, Tyrus Lee, Halvor Elway, Shawn Sanders, John Briggs, and Dale Harvin to the active roster. The Washington Xenomorphs have moved Byron Diggs, Lee Rule, Louis Nwokorie, Dee Johnson, Bill Curry, Carl Beach, Keith McGriff, Dan Breitenstein, Willard Kaufman, John McPhee, Herman Olenchalk, Ken Reader, Ray Calvin, Buchanan Barnes, Cory Parsons, Jarvis Mark, Stan Tuiasosopo, Al King, Tom Tobin, and Pete Phifer to the inactive roster. |
| 08-17-1981 | The Washington Xenomorphs have moved Steve Noga, Lee Rule, Carl Beach, Dan Breitenstein, Buchanan Barnes, John McPhee, Ken Reader, Pete Phifer, Hugh Darnall, Cory Parsons, Herman Olenchalk, Byron Diggs, Tom Tobin, Ray Calvin, Willard Kaufman, Al King, Jarvis Mark, Dee Johnson, Bill Curry, and Lakei Woodbury to the active roster. The Washington Xenomorphs have moved Kurt Saunooke, A.B. Blackwell, Joe Grant, Joe Sigurdson, Steve Forrest, Chad McKalip, Chase Jackson, Joe Stewart, Ken Williams, Al Cowne, Shawn Sanders, Wuert Johnson, Terry Mitchell, Hessley Brigance, Dale Harvin, George Barnes, Dave Richardson, Tyrus Lee, and Halvor Elway to the inactive roster. |
| 08-10-1981 | The Washington Xenomorphs have acquired Ray Calvin from the waiver wire. |
| 09-07-1980 | The Boston Copperheads have automatically waived Ray Calvin to comply with the 53-man roster limit. |
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