Compare the best sportsbooks coming to the Show-Me state and get the latest Missouri sports betting developments with registrations open Missouri sports betting is days away from going live on December 1 when the Show Me State will join 38 others in hosting legalized sports wagering. Missourians voted to legalize sports betting in November 2024 and for bettors, the Gateway to the West is almost ready to open up to online sports gambling. Eight sportsbooks have been granted licenses to operate