Players wagered $36.2m on online sports betting in Oregon in March, while gross gaming revenue (GGR) hit $3.6m.
Wagering fell 7.5% month-on-month, while GGR declined by 8.5%.
DraftKings, which has a state-wide partnership with the Oregon Lottery, saw the most amount wagered during the month, at $36.1m. This was a fall of 7.6% from February.