| Date | Transaction |
| 09-01-2110 | The Pittsburgh River Raiders have moved Lem Munney, James Hanson, Ron Arnett, Jim Miller, Allen Agnew, Jay Linhart, and Milford Times to the active roster. The Pittsburgh River Raiders have moved Kendrell Schroy, Mel Turner, Branson "Buster" Rauch, Kelvin Bryant, Gerald Heeter, and Angelo Bryan to the inactive roster. |
| 09-01-2110 | The Pittsburgh River Raiders have waived Karl Williams. |
| 10-14-2109 | The Pittsburgh River Raiders have acquired Karl Williams from the waiver wire. |
| 10-14-2109 | The Pittsburgh River Raiders have waived Karl Williams. |
| 10-14-2109 | The Pittsburgh River Raiders have moved Willie Gannon to the active roster. The Pittsburgh River Raiders have moved Karl Williams to the inactive roster. |
| 09-29-2109 | The Pittsburgh River Raiders have acquired Karl Williams from the waiver wire. |
| 09-12-2107 | The Winnipeg Jets have moved Steve Colella to the active roster. The Winnipeg Jets have moved Mark Kish to the inactive roster. |
| 09-12-2107 | The Winnipeg Jets have waived Karl Williams. |
| 09-05-2107 | The Winnipeg Jets have moved Cannonball Gildon, Michael Pittman, Ivory Taliaferro, Damian Turley, Steve Noble, Jay Novotny, Ernie Wire, John Latzke, Kendyl Swain, Rocky Gibson, and Dick Moses to the active roster. The Winnipeg Jets have moved Terry Nichols, Pat Jacoby, Karl Williams, Ray Seiler, Dick Brown, George Smith, Jesse Shepherd, Gus Bailey, Lance Saldi, and Scott Franklin to the inactive roster. |
| 08-22-2107 | The Winnipeg Jets have moved Sean Crawford and Karl Williams to the active roster. |
| 08-21-2107 | The Winnipeg Jets have placed Karl Williams on the trade block. |
| 08-15-2107 | The Winnipeg Jets have moved George Smith to the active roster. The Winnipeg Jets have moved Karl Williams to the inactive roster. |
| 01-23-2107 | The Winnipeg Jets have acquired Karl Williams from the waiver wire. |
| 10-25-2106 | The Montreal Oilers have waived Karl Williams. |
| 09-27-2106 | The Montreal Oilers have moved Karl Williams and Scott Sternaman to the active roster. The Montreal Oilers have moved Dave Bertagnolli and Don Hultman to the inactive roster. |
| 09-26-2106 | The Montreal Oilers have acquired Karl Williams from the waiver wire. |
| 08-24-2104 | The Philadelphia Federalists have moved Carl Humble to the active roster. |
| 08-24-2104 | The Philadelphia Federalists have waived Karl Williams. |
| 08-24-2104 | The Philadelphia Federalists have moved Larry Edwards, Freeman Stewart, Keenan Andrews, Alvin Johnson, Carl Norbeck, Andre Morrison, Lester McCabe, Eddie Hoskins, and Warren Baxter to the active roster. The Philadelphia Federalists have moved Elmer Sowell, Ken Sally, Ralph Willhite, Dunc Harris, Charles Williams, Mel Zaunbrechner, Cleo Washington, Ebert Kozlowsky, and Karl Williams to the inactive roster. |
| 12-09-2103 | The Philadelphia Federalists have moved Karl Williams, Jim Scott, Tony Jackson, Junior Whisenhunt, Gerald Sims, Cleo Washington, and Clarence McCullough to the active roster. The Philadelphia Federalists have moved Freeman Stewart, Carl Humble, Alvin Johnson, Len Klewicki, Earl Driver, Andre Morrison, and Cedric Wilson to the inactive roster. |
| 12-03-2103 | The Philadelphia Federalists have moved Theron Burrell to the active roster. The Philadelphia Federalists have moved Karl Williams to the inactive roster. |
| 11-05-2103 | The Philadelphia Federalists have moved Karl Williams to the active roster. The Philadelphia Federalists have moved Theron Burrell to the inactive roster. |
| 09-02-2103 | The Philadelphia Federalists have moved Freeman Stewart, Andre Morrison, Harold Jackson, Warren Baxter, and Cedric Wilson to the active roster. The Philadelphia Federalists have moved Gerald Sims, Tipp Zellars, Junior Whisenhunt, Karl Williams, and Charles Williams to the inactive roster. |
| 09-25-2102 | The Philadelphia Federalists have moved Karl Williams, Carl Norbeck, and Rod Howard to the active roster. The Philadelphia Federalists have moved Freeman Stewart, Harold Jackson, and Cedric Wilson to the inactive roster. |
| 09-03-2102 | The Philadelphia Federalists have moved Jim Jeffers, Antonio Ball, Tony Jackson, Johnny Lassiter, Marcus Bass, Dewey Haverdick, Freeman Stewart, Harry Graham, and Cedric Wilson to the active roster. The Philadelphia Federalists have moved Sam Cobb, Anthony Dunlap, Karl Williams, Walter Brunson, Marsh Jaffurs, Rick Wilcox, Carl Norbeck, and Charles Williams to the inactive roster. |
| 08-07-2102 | The Philadelphia Federalists have moved Fred Crockett, Anthony Dunlap, Karl Williams, and Charles Williams to the active roster. The Philadelphia Federalists have moved Charles Winfield, Freeman Stewart, Harry Graham, and Ray Moss to the inactive roster. |
| 04-30-2102 | The Philadelphia Federalists have acquired Karl Williams from the waiver wire. |
| 09-11-2101 | The Winnipeg Jets have automatically waived Karl Williams to comply with the 53-man roster limit. |
| 09-04-2101 | The Winnipeg Jets have moved Ivory Taliaferro, Gus Raymer, Dick Mays, Sean Crawford, and John Latzke to the active roster. The Winnipeg Jets have moved Merrill Stephens, Vito Munson, Dutch Ruddy, Jonathan Shonk, and Karl Williams to the inactive roster. |
| 01-17-2101 | The Winnipeg Jets have moved Terry Edmunds, Karl Williams, Merrill Stephens, Michael Norman, Jonathan Shonk, Dwayne Betts, Frank Lane, Vito Munson, and Kevin Truax to the active roster. The Winnipeg Jets have moved Dick Mays, Marco Lingmerth, Tom Solt, Ronnie Palatella, Greg Witteck, Ricky Kelly, Gus Raymer, Hoby Bailey, Mark DeLong, Delvin Armstrong, Jay Novotny, and Mark Lemek to the inactive roster. |
| 01-17-2101 | The Winnipeg Jets have acquired Karl Williams from the waiver wire. |
| 08-15-2100 | The Philadelphia Federalists have moved Freeman Stewart to the active roster. The Philadelphia Federalists have moved Rudy Wallace and Dkari Thomas to the inactive roster. |
| 08-15-2100 | The Philadelphia Federalists have waived Karl Williams. |
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