Who did Mike Tyson win his first heavyweight belt from?

Answer 1

Tyson was an Amateur Heavyweight for several years before having his 1st pro bout as a heavyweight against Hector Mercedes on March 6, 1985, with Tyson winning by a 1st round knockout. (1:50).

Answer 2

Tyson won the heavyweight championship on November 22, 1986 over Trevor Berbick and lost the title on February 11, 1990 to James 'Buster' Douglas.

Answer 3

He won his 1st Title on November 22, 1986 against Trevor Berbick.

http://www.boxrec.com/list_bouts.php?human_id=474&cat=boxer

Answer 4

he won the wbc title on 22nd November 1986, the wba title on 7th march 1987 and the ibf title to become undisputed world champion on 1st august 1987.

Answer 5

he beat trevor berbick in November 1986 to win the wbc title.

http://www.boxrec.com/list_bouts.php?human_id=474&cat=boxer

Answer 6

Mike Tyson first won the WBC Heavyweight World Championship on the 22nd November 1986, winning by second round knockout against Trevor Berbick.