Mike Tyson vs. Michael Spinks into the International Boxing Hall of Fame and the World Boxing Hall of Fame. Mike Tyson vs. Michael Spinks Mike Tyson vs. Michael Spinks was a boxing match which took place on Monday June 27, 1988. Both men were undefeated and each had a claim to being the legitimate heavyweight champion. At the time, Tyson held the belts of all three of the major sanctioning organizations (World Boxing Council, World Boxing Association, and International Boxing Federation) while Spinks was the "Ring" champion and was considered the lineal champion. Held at the Atlantic City Convention Hall in Atlantic City, New Jersey
Michael Spinks and narrow fifteen-round unanimous decision and becoming the first ever world light-heavyweight champion to win the world heavyweight title. His controversial victory over Holmes was named "Ring Magazine" Upset of the Year. With this, Michael and Leon had also become the first pair of brothers ever to be world heavyweight champions, followed two decades later by Wladimir and Vitali Klitschko. In 1986, Spinks and Holmes fought a rematch as part of the heavyweight unification series, and had nearly the same result, this time Spinks winning by a 15-round split decision. After that, he retained the world heavyweight championship once again,