ATLANTIC CITY, N.J. (AP) — A royal flush led to a king-sized payout for a New Jersey man playing cards online in the state’s largest-ever Internet gambling jackpot.

The Union County man, who refused to make his name public, was playing the card game Let It Ride on the BetfairCasino.com site on Feb. 14 and won $1.52 million.

It was the largest Internet gambling payout in the short history of online betting in New Jersey, surpassing the $1.3 million prize won by a Morris County woman in November.

Let It Ride is a variant of traditional poker, paying 1,000-to-1 for a royal flush. It also features an extra side bet called 3-Card Bonus.

Betfair said the man wagered $500 on each of his three initial bets, as well as the 3 Card-Bonus, and was dealt a royal flush in diamonds. He won 1,000-to-1 payouts on each of his three $500 initial bets, and an additional 40-to-1 on his $500 3-Card Bonus bet for a straight flush, yielding a total payout of $1,522,000.

“It’s always exciting when a player hits a big win,” said Don Ryan, general manager of BetfairCasino.com.

London-based Betfair began operating in New Jersey partnered with the now-closed Trump Plaza. It’s now aligned with the Golden Nugget.

Internet gambling began in November 2013 in New Jersey, and it took in $122 million in 2014, its first full year of operation.

New Jersey regulators are expected to clear another casino site — www.ResortsCasino.com — for full operation Wednesday, making it the sixth Atlantic City casino to offer Internet gambling.