Consumers in Colorado wagered $526.6m in sports during October, a 7.1% increase on the same month last year.
Of this total, $521.8m was bet online, while just $4.8m was wagered at retail sportsbooks in the state.
In terms of gross gaming revenue, operators generated $36.5m, which was 27.6% higher than $28.6m in October 2021, but 28.8% behind the $51.3m reported in September this year.
Online betting revenue amounted to $36.2m, with retail wagering revenue reaching just $267,128.
Betting revenue by sport
Football remained the most popular sport to wager on in September, drawing $171.6m in total bets across online and retail.
Basketball ranked second with $85.7m in wagers, then college football on $50.4m, while parlay betting spend stood at $92.0m.
Players won $490.1m from sports wagering during the month, while Colorado collected $2.3m in sports betting taxes.