| Date | Transaction |
| 02-28-1993 | Bob Williams has retired from the Las Vegas COIN. |
| 09-07-1992 | The Las Vegas COIN have moved Tom Heath to the active roster. The Las Vegas COIN have moved Bob Williams to the inactive roster. |
| 11-19-1989 | Bob Williams of the Las Vegas COIN is injured with a mild concussion and is expected to be out for approximately 6 days. |
| 09-21-1987 | The Las Vegas COIN have placed Bob Williams on the trade block. |
| 12-14-1986 | The Las Vegas COIN have acquired Bob Williams from the waiver wire. |
| 09-08-1986 | The Washington Xenomorphs have waived Bob Williams. |
| 09-01-1986 | The Washington Xenomorphs have moved Kurt Saunooke, Norman Rosenstiel, Joe Simon, Kevin Brown, Devon Parker, Ron Barni, Billy Barber, Steve Forrest, Chase Jackson, Dave Richardson, Eugene Sloan, Alex Thomas, Milan Hubka, Malcolm Faulk, Brian Speck, Devone Rivera, Al Bailey, Gene Atkins, Jim Mitchell, and Halvor Elway to the active roster. The Washington Xenomorphs have moved Jim Scott, Hank Young, Joe Grant, Wilbur Cunningham, Chad McKalip, Jed Atkeson, Bob Williams, Donnie Lafleur, Eugene Perini, Phil Majors, Pete Kahler, Ryan Johns, Jimmy Saimes, Hal Renfro, Charle Summerell, Jim Garden, Duke Collins, and Bill Drost to the inactive roster. |
| 08-24-1986 | The Washington Xenomorphs have moved Eugene Perini, Charle Summerell, Joe Grant, Hal Renfro, Charles Wynne, Phil Majors, Joe Maddock, Ryan Johns, Mac Rembert, Chad McKalip, Bill Drost, Jimmy Saimes, Donnie Lafleur, Jed Atkeson, Bob Williams, Pete Kahler, and Wilbur Cunningham to the active roster. The Washington Xenomorphs have moved Alex Thomas, Devone Rivera, Joe Simon, Kurt Saunooke, Billy Barber, Gene Atkins, Malcolm Faulk, Steve Forrest, Kevin Brown, Devon Parker, Jim Mitchell, Milan Hubka, Norman Rosenstiel, Al Bailey, Eugene Sloan, Brian Speck, and Halvor Elway to the inactive roster. |
| 08-18-1986 | The Washington Xenomorphs have moved Norman Rosenstiel, Jim Mitchell, Joe Simon, Al Bailey, Ron Barni, Halvor Elway, Kurt Saunooke, Alex Thomas, Steve Gurode, Brian Speck, Devone Rivera, Bob Barnes, Ken Williams, Gene Atkins, Duke Collins, John Young, Kevin Brown, Devon Parker, Steve Forrest, Billy Barber, Kyle Davis, Milan Hubka, Eugene Sloan, and Malcolm Faulk to the active roster. The Washington Xenomorphs have moved Aveion Dieter, John Jackson, Mac Rembert, Phil Majors, Eugene Perini, Chad McKalip, Pete Kahler, Dennis Horton, Bob Williams, Sully Stoops, Charle Summerell, Hal Renfro, Bill Drost, Lloyd Pelluer, Ryan Johns, Donnie Lafleur, Jeff Franklin, Wilbur Cunningham, Jimmy Saimes, Joe Grant, Jed Atkeson, Mike Morgan, Paul Bostic, and Joe Maddock to the inactive roster. |
| 08-10-1986 | The Washington Xenomorphs have moved Hank Young, Aveion Dieter, Mac Rembert, Chad McKalip, Dennis Horton, Mike Morgan, Bob Williams, Donnie Lafleur, Phil Majors, Pete Kahler, John Jackson, Hal Renfro, and Bill Drost to the active roster. The Washington Xenomorphs have moved Kurt Saunooke, Joe Simon, John Young, Steve Forrest, Chase Jackson, Dave Richardson, Alex Thomas, Malcolm Faulk, Brian Speck, Bob Barnes, Gene Atkins, Jim Mitchell, and Halvor Elway to the inactive roster. |
| 12-30-1985 | The Washington Xenomorphs have moved Steve Forrest and Halvor Elway to the active roster. The Washington Xenomorphs have moved Hal Renfro and Bob Williams to the inactive roster. |
| 12-23-1985 | The Washington Xenomorphs have moved Hank Young, Pete Kahler, Bob Williams, Hal Renfro, Gene Olympus, John Young, Billy Barber, and Fred Garlich to the active roster. The Washington Xenomorphs have moved Jim Mitchell, Joe Simon, Terry Mitchell, Halvor Elway, Kurt Saunooke, Brian Speck, Kevin Brown, Dave Richardson, and Steve Forrest to the inactive roster. |
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