About this app
What is Fruit Duel?
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.
About Fruit Duel
“Our work is not driven by opposition to the gambling industry or to legal, licensed operators. Quite the contrary.”
The focus is on identifying illegal and unregulated gambling sites, operators that offer gambling services without the necessary licence, as well as sites that misuse, copy, or falsely refer to other operators’ licences.
“You can try to stop gambling, but then you go onto foreign gambling sites and crypto casinos and they keep appearing,” Madsen says.
About Fruit Duel
“There are about 70,000 ads every single month for illegal operators or offerings – and there’s only two or three thousand from the legal market. It’s really unbalanced and they should regulate more.
“As a trade organisation we are trying to work together with our regulator because we feel that we have a shared interest of getting a good legal market. And of course we’re talking to politicians to do something about putting illegal operators on notice. I think it is really positive at the moment in the Netherlands that the operators have really teamed up,” Petra continues.
Notably, she says competing with each other is not important at the moment, as working to fight the black market serves a bigger purpose.