This could, in theory, make DraftKings one of the first retail sportsbooks to launch within the state. Legal sports betting in Arizona has finally been legalized in 2021. There will be up to 20 sportsbooks in the state when the form of gambling launches. In April 2021, the Arizona Senate approved HB2772, legalizing in-person and mobile sports betting in the state. The bill was signed into legislation by Gov.