The monthly total was comfortably higher than $2.4m in May last year and also up by some 31.6% from $3.8m in April this year.
Player spending was also up 50.5% year-on-year from $27.7m to $41.7m, though this was slightly down from $42.9m in April 2022.
DraftKings, which has a state-wide partnership with the Oregon Lottery, generated $5.0m in revenue from a $41.7m in player bets in April.
In contrast, the Oregon Lottery’s Scoreboard online sportsbook – which has been phased out to be replaced by DraftKings but still pays out on bets placed before this phaseout – took $33,440 in wagers and paid out $35,729.
Basketball remained the most popular sport among players, drawing $18.2m in wagers with DraftKings and a further$24,388 from Scoreboard, generating $2.6m in revenue in the process.
Baseball followed with $10.1m in wagers and $1.2m in revenue, all of which came through DraftKings, then soccer with $3.3m in bets in DraftKings and $6,813 from Scoreboard, with revenue at $326,778.
As to the type of bets players were placing in April, $30.8m of wagers placed with DraftKings were singles and teasers, while the remaining $10.9m being parlay bets.
This was similar on Scoreboard, with $31,363 worth of single and teaser bets placed during the month, and a further while just $2,077 in parlay bets.