What do these fights have in common?

[IamInuit]

Mike Weaver stops Frank Tate in the15th
Alexis Arguello defeats Jim Watt over 15
Roberto Duran defeats Ray Leonard over 15
Bazooka Limon stops Idelfonso Bethelmy in the 15th.
Alexis Arguello stops Ray Mancini in 14
Wilfred Benitez defeats Roberto Duran, 15 rounds
Salvador Sanchez stops the then undefeated Wilfredo Gomez in 8
Michael Spinks defeats Eddie Mustafa Muhammad, over 15
Thomas Hearns defeats Wilfred Benitez in 15
Dwight Braxton stops Matthew Saad Muhammad in 10
Salvador Sanchez stop Azumah Nelson in 15
Matthew Saad Muhammad stops .Yaqui Lopez in14
Salvador Sanchez stops Danny Lopez in 13
Ray Leonard stops Tommy Hearns in the 14th
Aaron Pryor stops Alexis Arguellos in the 14th.
Bobby Chacon defeats Bazooka Limon over 15
Michael Spinks defeats Dwight Qawi, in 15
Wilfredo Gomez defeats Juan LaPorte in 12
Marvin Hagler defeats Roberto Duran in 15
Thomas Hearns stops Roberto Duran in 2
Wilfredo Gomez defeats Juan LaPorte over 12
Livingstone Bramble stops Ray Mancini in 14
Marvin Hagler stops Tommy Hearns in the 3rd
Azumah Nelson stops Wilfredo Gomez in 11
Jeff Fenech stops Satoshi Shingaki in 9
Hector Camacho defeats Jose Luis Ramirez over 12
Michael Spinks defeats Larry Holmes over 15
Donald Curry stops Milton McCrory in 2
Marvin Hagler stops John Mugabi in 11
Dwight Qawi stops Leon Spinks in 6
Evander Holyfield defeats Dwight Qawi, over 15
Mike McCallum stops Julian Jackson in 2
Lloyd Honeygram stops Donald Curry in 6
Thomas Hearns stops Dennis Andries in 10
Ray Leonard defeats Marvin Hagler over 12
Mike McCallum stops Donald Curry in 6
Prince Charles Williams stops Bobby Czyz in 9
Julio Cesar Chavez stops Edwin Rosario in 11
Jeff Fenech stops Victor Callejas in 10
Simon Brown stops Tyrone Trice in 14
Iran Barkley stops Thomas Hearns in 3
Roberto Duran defeats Iran Barkley over 12
Julian Jackson stops Terry Norris in 2

[p4pking]

Where they all upsets on paper? Hard to believe a few of them would've been, but I can't think of any other possible tie.

[IamInuit]

Where they all upsets on paper? Hard to believe a few of them would've been, but I can't think of any other possible tie.

Some were I suppose but not the answer.

[p4pking]

Hmmm.... My first guess was going to be all for lineal titles, that isn't it either though I imagine?

[IamInuit]

Hmmm.... My first guess was going to be all for lineal titles, that isn't it either though I imagine?

No but thats another cool answer

[Primo Carnera]

Were they all unification fights?

[IamInuit]

Were they all unification fights?

Nope but another good answer.

[Sleepwalker]

They were all aired on closed-circuit tv