Consumers in Arizona wagered a record $691.0m (£552.2m/€647.1m) on sports in March, while gross revenue climbed 52.5% month-on-month.
The state’s monthly handle surpassed the previous record of $563.7m set in January of this year, while the March total was also 41.5% more than $488.3m in February.
Some $687.7m was bet online, while the remaining $3.3m was bet at retail sportsbooks.
Players won $652.1m from sports betting, leaving $37.2m in gross revenue before free bets, up from $24.4m in January. Of this total, $37.1m was attributed to online and $129,463 retail.
After accounting for $18.6m worth of free bets and promotional credits, taxable revenue was $18.7m, an increase of 171.0% from $6.9m in February.
The state was also able to collect $1.9m in tax from sports betting during the month.
DraftKings processed the most wagers during March, with players spending $230.2m online, while FanDuel ranked second with a handle of 187.4m, split $184.6m online and $2.9m at retail sportsbo..