| Date | Transaction |
| 02-28-2068 | Big Bob Isbister has retired from football. |
| 09-11-2067 | The Calgary Stampeders have automatically waived Big Bob Isbister to comply with the 53-man roster limit. |
| 09-05-2067 | The Calgary Stampeders have moved Jim Otis, Bruce Jankowski, Cookie Gilchrist, Jeff Spek, Don Poppowell, Ron Lancaster, Randy Vataha, Margene Adkins, and John Hannah to the active roster. The Calgary Stampeders have moved Obie Erickson, John Huarte, Barney Hough, Jerry Sutro, Randal Campanella, Jim Strozier, Homer Jackson, Elbie Brinkley, Drake Papit, Larry Ferry, and Big Bob Isbister to the inactive roster. |
| 09-06-2065 | The Calgary Stampeders have moved George Hasenorhl, Roger Nelson, and Big Bob Isbister to the active roster. The Calgary Stampeders have moved Shirley Fields, Ron Estay, and Bill Clarke to the inactive roster. |
| 08-24-2065 | The Calgary Stampeders have moved Pete Cusick, Shirley Fields, and Ron Estay to the active roster. The Calgary Stampeders have moved Big Bob Isbister, George Hasenorhl, and Roger Nelson to the inactive roster. |
| 09-01-2064 | The Calgary Stampeders have moved Ed George, Bruce Ruhl, Greg Battle, Ron Lancaster, Margene Adkins, Sylvester Quilty, Jeff Spek, Lucious Selmon, Randy Vataha, Big Bob Isbister, Don Poppowell, George Hasenorhl, Royce Ford, Randy Gradishar, Roger Nelson, John Hannah, Tom Gatewood, and Rick Seifert to the active roster. The Calgary Stampeders have moved Ernie Davis, Dickie Harris, Ben Zambiasi, Roland Taylor, Gary Thomas, Jeff Croel, Bruno Rocco, Jim Henderson, Pete Cusick, Andy Katzenmoyer, Shirley Fields, Gerry DiNardo, Ray Andrus, Curtis Simonson, Ron Estay, Gloster Richardson, Sam Bowers, and Jake Dean to the inactive roster. |
| 08-04-2064 | The Calgary Stampeders have moved John Rose, Luther Bradley, Jim Henderson, Andy Davis, Roland Taylor, Andy Katzenmoyer, Shirley Fields, Bob Garrett, Andre Stokes, Jeff Croel, Alex Hutton, Pete Cusick, Gloster Richardson, Ray Andrus, Curtis Simonson, and Jake Dean to the active roster. The Calgary Stampeders have moved Jeff Spek, Lucious Selmon, George Hasenorhl, Randy Vataha, Roger Nelson, Don Poppowell, Randy Gradishar, Big Bob Isbister, Bruce Ruhl, John Hannah, Leo Hayden, Margene Adkins, Ed George, Greg Battle, Tom Gatewood, and Royce Ford to the inactive roster. |
| 09-04-2062 | The Los Angeles Hollywood Stars have changed Carl Bennett's name to Big Bob Isbister. |
| 12-12-2060 | Carl Bennett of the Los Angeles Hollywood Stars is injured with a partial PCL tear and is expected to be out for approximately 36 days. |
| 12-10-2056 | Carl Bennett of the Los Angeles Hollywood Stars is injured with a knee contusion and is expected to be out for approximately 4 days. |
| 08-13-2056 | The Los Angeles Hollywood Stars have automatically moved Carl Bennett to the active roster. |
Defensive End