— The bettor has won his bet on the Kentucky Derby and won his $300k prize.
Kentucky Derby officials say a customer placed a bet of $100 on the race and $100 bet on him, when he bet $200.
The customer lost $200,000 and received a refund.
The Kentucky Derby is one of the most expensive sports in the country, with more than $7 billion in winnings for the sport last year.
More than 6 million people attend races in the U.S., and about 2.5 million bet on horse races, according to the Kentucky Sportsmen’s Alliance.
An estimated $2.2 billion was spent on bets on the Derby in 2014, according a report from the Kentucky Lottery.