Blin was born on the Baltic Sea island of Fehmarn on 24 April 1943 during World War II, and was a native of the North German city of Hamburg.

He was briefly Heavyweight Champion of (West) Germany after defeating Gerhard Zech for the title (he had two draws with him previously).

However, in October 1972, Blin once again faced Bugner who regained the title by knocking the German out in the eighth round.

[1] On 26 December 1971, he fought the American boxer Muhammad Ali at Hallenstadion Arena, in Zürich, Switzerland, Blin being knocked out 2 minutes and 12 seconds into the seventh round.

[1] Blin was co-author with Stephen Brunt of a chapter in a book titled Facing Ali (2002), about his 1971 contest with the United States champion boxer.