The UFC announced on Thursday that, beginning with UFC 273 , the promotion will pay fighters competing on pay-per-view events $60,000 worth of bitcoin bonuses. The new Fan Bonus of the Night will be comprised of three individual $30,000, $20,000 and $10,000 bonuses to be determined by a fan vote and paid in bitcoin based on the exchange rate in U.S.
See more here:
UFC adds Fan Bonus of the Night for fighters to be paid in bitcoin – MMA Junkie