The identity of the bettor, who placed the wager on October 29, is not known. But wagering on the election in the United Kingdom’s legal betting market is soaring, setting up the US vote to be the most-bet-upon event in history. US gamblers are not allowed to place legal wagers on the election, even as legal sports wagering spreads across much of the country thanks to a 2018 Supreme Court ruling. Someone has placed a £1 million, or $1.29 million, bet on Biden to be the next president on the Betfair Exchange, the world’s largest online betting exchange, where gamblers find other gamblers who match their wagers.
Joe Biden’s biggest fan could be a bettor in the United Kingdom.