Heavyweight unification series

Heavyweight World Seriesseries of fightsThe HBO Heavyweight Boxing Series
The heavyweight unification series, also known as the Heavyweight World Series, was a sequence of professional boxing matches held in 1986 and 1987 to crown an undisputed champion of the heavyweight class.wikipedia
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Undisputed champion

undisputedunifiedunification
The heavyweight unification series, also known as the Heavyweight World Series, was a sequence of professional boxing matches held in 1986 and 1987 to crown an undisputed champion of the heavyweight class.
After some negotiations, the heavyweight title was unified in the heavyweight unification series, a series of coordinated bouts in 1986 and 1987, with Mike Tyson emerging as the first undisputed champion (WBC, WBA & IBF) since Leon Spinks in 1978.

Mike Tyson

Desiree WashingtonTysonMichael Tyson
It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council.
Expectations for Tyson were extremely high, and he was the favorite to win the heavyweight unification series, a tournament designed to establish an undisputed heavyweight champion.

Professional boxing

professional boxerprizefighterboxer
The heavyweight unification series, also known as the Heavyweight World Series, was a sequence of professional boxing matches held in 1986 and 1987 to crown an undisputed champion of the heavyweight class.
Nicknamed "Iron Mike", Tyson won the heavyweight unification series to become world heavyweight champion at the age of 20 and the first undisputed champion in a decade.

Tim Witherspoon

Terrible" Tim WitherspoonWitherspoon
King and HBO announced the series on January 17, 1986, during a press conference before a fight between Tim Witherspoon and Tony Tubbs.
In his first defense of his newly won championship, Witherspoon traveled to London and fought a young up-and-coming English heavyweight and future world champion Frank Bruno at Wembley Stadium, as part of the heavyweight unification series.

Michael Spinks

Spinks
The series would also include WBC champion Pinklon Thomas, IBF champion Michael Spinks, and top contenders from each of the three sanctioning bodies' rankings.
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.

Mike Tyson vs. James Smith

Mar 7, 1987James "Bonecrusher" SmithMike Tyson vs. James "Bonecrusher" Smith
Mike Tyson vs. James Smith, billed as "Super Fight", was a professional boxing match contested on March 7, 1987 for the WBA and WBC Heavyweight championships, as part of the heavyweight unification series.

Mike Tyson vs. Pinklon Thomas

May 30, 1987Hard Road to Glory
In 1986, the three major boxing organizations, the WBA, WBC and IBF, teamed with HBO to develop the heavyweight unification series, a tournament that would ultimately unify all three Heavyweight titles and determine the next Undisputed Champion.

Mike Tyson vs. Michael Spinks

Jun 27, 1988Tyson–Spinks fight91-second Knockout
In June 1988, the two champions faced off, and Tyson knocked out Spinks in 91 seconds.
The fight was a part of The HBO Heavyweight Boxing Series (otherwise known as the Unification Series,) in an effort to unify the titles in the heavyweight division and thus produce the undisputed champion.

Mike Tyson vs. Tony Tucker

Aug 1, 1987match against Tony TuckerMike Tyson's defeat of Tony Tucker
HBO had organized the heavyweight unification series, a tournament intended to find the next Undisputed Champion.

James Smith (boxer)

James SmithJames "Bonecrusher" SmithBonecrusher Smith
With his surprising victory over Witherspoon, Smith took his place in the heavyweight unification series, an ongoing competition being conducted by HBO and King to try to crown an undisputed world heavyweight champion for the first time since the retirement of Muhammad Ali.

Westgate Las Vegas

Las Vegas HiltonInternational HotelWestgate Las Vegas Resort & Casino
The hotel struck a deal to host several fights in the heavyweight unification series, a tournament to establish an undisputed heavyweight champion.

Tony Tucker

Home Box Office and Don King Productions orchestrated a heavyweight unification series for 1987, planning among its bouts a match between reigning IBF champion Michael Spinks and Tucker.

Heavyweight

heavyweight boxerheavyweight boxingheavyweight division
The heavyweight unification series, also known as the Heavyweight World Series, was a sequence of professional boxing matches held in 1986 and 1987 to crown an undisputed champion of the heavyweight class.

HBO

Home Box OfficeHBO.comHBO Family
The series was produced by HBO Sports and promoted by Don King.

Don King (boxing promoter)

Don KingDon King BoxingDon King Productions
The series was produced by HBO Sports and promoted by Don King.

Championship belt

title beltbeltBoxing belt
It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council.

International Boxing Federation

IBFUSBAUnited States Boxing Association
It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council.

World Boxing Association

WBAWBA (Super)National Boxing Association
It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council.

World Boxing Council

WBCWBC SilverWBC FECARBOX
It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council.

Leon Spinks

LeonSpinksNeon" Leon Spinks
Prior to the series, the last undisputed heavyweight champion had been Leon Spinks, who won the championship in his 1978 victory over Muhammad Ali.

Muhammad Ali vs. Leon Spinks

Feb 15, 19781978 victoryLeon Spinks's victory over Muhammad Ali
Prior to the series, the last undisputed heavyweight champion had been Leon Spinks, who won the championship in his 1978 victory over Muhammad Ali.

Muhammad Ali

Cassius ClayMuhammed AliAli
Prior to the series, the last undisputed heavyweight champion had been Leon Spinks, who won the championship in his 1978 victory over Muhammad Ali.

Pinklon Thomas

The idea of the series originated in October 1985, when Don King visited HBO Sports president Seth Abraham to propose a WBC title fight between Pinklon Thomas and Trevor Berbick.

Trevor Berbick

The idea of the series originated in October 1985, when Don King visited HBO Sports president Seth Abraham to propose a WBC title fight between Pinklon Thomas and Trevor Berbick.

World Series

championship seriesFall ClassicWorld Championship
Abraham had little interest in the fight, but, inspired by the World Series that was being televised at the time, he suggested making the fight the first in a series to unify the heavyweight titles.