UFC Fight Night 52: Hunt vs. Nelson was a mixed martial arts event held on September 20, 2014, at Saitama Super Arena in Saitama, Japan. The event was headlined by a heavyweight bout between Roy Nelson and Mark Hunt.

UFC Fight Night 85: Hunt vs. Mir was a mixed martial arts event held on March 20, 2016 at the Brisbane Entertainment Centre in Brisbane, Australia. It was headlined by a heavyweight bout between the 2001 K-1 World Grand Prix and former interim title contender Mark Hunt and former two-time UFC Heavyweight Champion Frank Mir.

Rizin World Grand-Prix 2016: 2nd Round was a mixed martial arts event held by the Rizin Fighting Federation on December 29, 2016 at the Saitama Super Arena in Saitama, Japan.