2. Floyd Mayweather
He is well-known but not for his prowess in casino games. Floyd Mayweather, however, won $101,250 back in 2018 from video poker, increasing people's conviction that you can win the jackpot. The win came after spending about $20,000 on bets which finally bore fruit. He also put up a video at the time holding up $70,000 worth of tickets for the world to see that he had gained more than the hundred thousand dollar cash price.