| Date | Transaction |
| 02-28-1990 | Lee Blackman has retired from football. |
| 12-05-1988 | The Toronto Wolves have waived Lee Blackman. |
| 12-05-1988 | The Toronto Wolves have moved Orland Ribble to the active roster. The Toronto Wolves have moved Lee Blackman to the inactive roster. |
| 11-21-1988 | The Toronto Wolves have moved Lee Blackman to the active roster. The Toronto Wolves have moved Orland Ribble to the inactive roster. |
| 11-21-1988 | The Toronto Wolves have acquired Lee Blackman from the waiver wire. |
| 09-19-1988 | The Boston Bronze Age have waived Lee Blackman. |
| 12-21-1987 | The Boston Bronze Age have moved Lee Blackman to the active roster. The Boston Bronze Age have moved Web Assign to the inactive roster. |
| 12-21-1987 | The Boston Bronze Age have acquired Lee Blackman from the waiver wire. |
| 11-30-1987 | The Boston Bronze Age have moved Mike Fry to the active roster. The Boston Bronze Age have moved Alton Rodgers to the inactive roster. |
| 11-30-1987 | The Boston Bronze Age have waived Lee Blackman. |
| 11-30-1987 | The Boston Bronze Age have moved Alex Hunt to the active roster. The Boston Bronze Age have moved Lee Blackman to the inactive roster. |
| 11-23-1987 | The Boston Bronze Age have moved Lee Blackman and Alton Rodgers to the active roster. The Boston Bronze Age have moved Alex Hunt to the inactive roster. |
| 11-23-1987 | The Boston Bronze Age have acquired Lee Blackman from the waiver wire. |
| 11-09-1987 | The Boston Bronze Age have waived Lee Blackman. |
| 11-09-1987 | The Boston Bronze Age have acquired Lee Blackman from the waiver wire. |
| 10-12-1987 | The Cleveland Ironmen have waived Lee Blackman. |
| 10-12-1987 | The Cleveland Ironmen have acquired Lee Blackman from the waiver wire. |
| 10-04-1987 | The Cleveland Ironmen have waived Lee Blackman. |
| 10-04-1987 | The Cleveland Ironmen have acquired Lee Blackman from the waiver wire. |
| 09-07-1987 | The Boston Bronze Age have waived Lee Blackman. |
| 12-23-1985 | The Boston Bronze Age have moved Lee Blackman to the active roster. The Boston Bronze Age have moved John Wheeler to the inactive roster. |
| 12-15-1985 | The Boston Bronze Age have moved John Wheeler to the active roster. The Boston Bronze Age have moved Lee Blackman to the inactive roster. |
| 12-15-1985 | Lee Blackman of the Boston Bronze Age is injured with a leg contusion and is expected to be out for approximately 8 days. |
| 08-12-1985 | Trade #73290 has been completed between the Boston Bronze Age and the Las Vegas White Elephants. The Las Vegas White Elephants receive Jack Babcock (RB), Fred Hamilton (CB), Ed Grigg (RB) from the Boston Bronze Age in exchange for Lee Blackman (CB). |
| 04-28-1985 | Trade #73276 has been completed between the Toronto Wolves and the Las Vegas White Elephants. The Las Vegas White Elephants receive Lee Blackman (CB), Draft Pick - 1986 Round 6 (TOR) from the Toronto Wolves in exchange for Joe Root (CB), Draft Pick - 1987 Round 4 (LV), Draft Pick - 1987 Round 5 (LV). |
| 11-27-1983 | The Boston Minutemen have placed Lee Blackman on the trade block. |
| 08-08-1983 | The Boston Minutemen have moved Lee Blackman to the active roster. The Boston Minutemen have moved Joe Bennett to the inactive roster. |
| 12-13-1982 | The Boston Minutemen have moved Melvin Little and Ken MacLeod to the active roster. The Boston Minutemen have moved Lee Blackman and Johnny Pauley to the inactive roster. |
| 09-27-1981 | Lee Blackman of the Boston Minutemen is injured with an ankle ligament sprain and is expected to be out for approximately 22 days. |
| 01-06-1980 | Lee Blackman of the Boston Minutemen is injured with an ACL sprain and is expected to be out for approximately 25 days. |
| 10-21-1979 | Lee Blackman of the Boston Minutemen is injured with a shoulder contusion and is expected to be out for approximately 8 days. |
| 09-30-1979 | Lee Blackman of the Boston Minutemen is injured with a hip contusion and is expected to be out for approximately 3 days. |
| 08-06-1979 | The Boston Minutemen have moved Bashir Strutt, Jay Becker, Lee Blackman, Breck Fada, and John McAddley to the active roster. The Boston Minutemen have moved Gene Geyer, Antwuan Nemecek, Saxon Sanders, Mule Blackburn, and Clarence By'not'e to the inactive roster. |
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