Consumers in Arizona spent $572.5m betting on sports in December of 2022, a year-on-year increase of 14.7%.
The monthly figure was comfortably higher than the $499.2m bet during the same month in 2021, but 7.2% behind the $616.9m wagered in November 2022.
Mobile betting accounted for $566.5m of all bets placed in December, while a further $5.0m was spent at retail sportsbooks in the state.
Players won a total of $516.9m, leaving $54.4m in adjusted gross revenue prior to free bets deduction, up 40.9% from $38.6m in the same month in 2021.
After taking away $17.1m worth of free bets and promotional credits revenue, almost all of which were used for online sports betting, this left $37.5m in adjusted gross revenue, up 856.4% on the previous year when $38.8m of revenue was attributed to free bets.
Of the total revenue generated in December 2022, $37.0m came from online wagering and just $207,663 from retail wagering at land-based facilities across Arizona.
Tax collected from sports betting during the month amounted to $3.7m.