Conor McGregor

Similar to Mayweather, McGregor has gone back and forth from active fighting and retirement. He recently came back in early 2021 only to get beaten badly in a rematch with Dustin Poirier. While McGregor specializes in MMA fighting, he and Mayweather even boxed once, which earned them both millions of dollars.

McGregor has his own plane, too. He posts pictures of himself flying in his private jet on social media and isn’t afraid to flaunt his wealth. A watch with more than 500 diamonds worth $1 million was recently seen on his wrist. His private plane has cream-colored leather seats and a large dining table for his family to enjoy while they travel.