A Powerball lottery ticket is shown in this illustration photograph in Encinitas, California January 8, 2016.

CHICAGO — With Powerball’s jackpot now at $1.3 billion and likely to surge higher by Wednesday’s drawing, the U.S. multi-state lottery is offering the world’s richest grand prize that could go to a single ticket holder, officials said on Sunday.

The pot pushed higher when no ticket holder had the winning combination of six numbers selected during Saturday’s drawing, when the grand prize reached nearly $950 million.

“It’s crazy how big this jackpot is,” said Alex Traverso, a spokesman for the California Lottery, confirming that the current Powerball prize was record setting. “Buckle up: It’s going to be a crazy ride between now and Wednesday night.”

California is one of 44 states, plus Washington D.C. and two U.S. territories, that participate in Powerball.

There is an asterisk next to the “world’s largest” status of Wednesday’s jackpot, however.

While the $1.3 billion is by far the largest ever up for grabs in North America, Spain’s latest elGordo lottery, or “The Fat One,” had a prize pool of $2.4 billion prize. But it was awarded to thousands of ticketholders, elGordo’s website said.

Powerball’s riches could go to a single ticketholder.