Le Zeus

How to play Le Zeus

A hearing before the Supreme Court would be the culmination of what has been the biggest sports betting-related development since PASPA. Perhaps no other issue has united gaming stakeholders from various companies, tribes, states and regulators.

Beginning with the US presidential elections in November 2024, when prediction markets catapulted into mainstream culture, their rise has been undeniable. Kalshi and Polymarket have seen their valuations balloon to $40 billion and $21 billion, respectively, and the majority of the top US bookmakers have scrambled to expand into the prediction space in various forms, either by building their own exchanges, acquiring existing ones or engaging in market-making.

Commercial sports betting generated just under $17 billion in nationwide revenue in 2025, which is why Davenport asserts that the “stakes of this case are exceptionally high”. Kalshi and Polymarket alone posted more than $45 billion in trading volume, which is similar but not identical to betting revenue, in August. That was a 15% decline from July, although that drop is attributed to the conclusion of the Fifa World Cup tournament that month per Yahoo! Finance.

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“Japan is acting cautiously, after observing missteps from other jurisdictions. They are proceeding in the way that best suits them,” she adds.

The factor that led some operators to drop out of the licensing race could be the “uncertainty” created by regulations that “didn’t seem set in stone”, says Leckert.

“Some of them [investors] that were looking at Japan were looking at a big IR licence or nothing. With Tokyo and Yokohama being out of the mix, maybe some weren’t as interested anymore and decided to sit back, and wait and see how regulation and licensing shake out.”

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During the livestream, the president stated that he had spoken with a woman who said her 26-year-old son had taken his own life because of online betting. He also mentioned hearing from a bettor who had racked up BRL2 million ($388,410) in debt in just three months of wagering.

Lula said he intends to discuss the matter with his team and analyse potential measures to consider the social impact of online betting.

What the president does not acknowledge is that the government relies on revenue from the sector. In just the first seven months of 2026, BRL8.747 billion generated by sports betting has already flowed into public coffers. The Federal Revenue Service estimates the total could reach BRL16 billion by the end of the year. In 2025, nearly BRL9 billion was collected from sportsbooks.