Stipe Miocic (born August 19, 1982) is an American professional mixed martial artist.
He is the fourth UFC fighter to hold titles in two different weight classes simultaneously, and the second to defend titles in two different weight divisions.
Alexander Volkanovski (born 29 September 1988) is an Australian professional mixed martial artist.
Amanda Nunes (born May 30, 1988) is a Brazilian retired professional mixed martial artist.
Second fighter in UFC history to hold titles in two weight classes simultaneously and is the first fighter to have title defenses in two divisions.
Demetrious Johnson (born August 13, 1986) is an American mixed martial artist. He currently competes in ONE Championship, where he is the current ONE Flyweight Champion (135 lb).
He is a former UFC Middleweight Champion and holds the record for the longest title reign in UFC history at 2,457 days.
He was the longest-reigning UFC Lightweight Champion ever, having held the title from April 2018 to March 2021.
Jonathan Dwight Jones (born July 19, 1987) is an American professional mixed martial artist currently signed to the Ultimate Fighting Championship (UFC)
St-Pierre is a three-time former UFC Welterweight Champion, having won the title twice and the interim title once between November 2006 and April 2008.