The popular Superbook also launched in December 2021, with the site renowned for its competitive odds and broad sports coverage! This number includes BetMGM, which collaborated with Game Sense and the Arizona Cardinals to promote responsible in-stadium betting through 2023. This has enabled several market leading betting sites to launch in multiple states, but what are the best online sportsbooks nationwide? Let’s find out!Īrizona officially legalized sports betting on April 15 th, 2021, with the initial legislation permitting 20 sportsbooks to operate (17 have been licensed at the time of writing). During the subsequent five years, 26 US states have legalized online sports betting, while 34 jurisdictions at least allow punters to wager in-person at licensed casinos. It was May 2018 when the US Supreme Court decided to strike down the controversial PAPSA legislation, which had prohibited sports betting at a federal level since 1992. List of the Best Online Betting Sites for the United States Table of Contents Best Online Betting Sites