During the 12-month period, players in the state spent $4.78bn betting on sports over the internet, as well as $59.7m at retail sportsbook facilities across Colorado.
Basketball was the most popular sport among consumers by some margin, attracting a total of $1.20bn in wagers over the course of the year. Football bets amounted to $768.6m and baseball $506.2m, while $872.5m worth of parlay wagers were also placed.
In terms of revenue, total gross gaming revenue from sports betting was $282.6m for the financial year. The majority of this came from online, with this form of betting accounting for $279.6m, while retail revenue reached just $3.0m for the year.