Consumers in Colorado wagered $12.10bn on sports during the first full three years of legal betting in the US state.
Colorado launched its regulated market in May 2020, with the total amount spent covering player bets through to the end of April this year.
Of this figure, $11.95bn was wagered online and $146.9m at retail sportsbooks.
Gross gaming revenue for the three-year period amounted to $817.0m. Some $808.9m of this came from online betting, while $8.1m was attributed to land-based wagering.