Ninth Circuit Rules on Tribal Sports Betting Claims
The court found California tribes may have authority over certain sports prediction contracts on tribal land.
Updated on Oct. 28, 2026 in Gambling

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On September 16, 2026, the Ninth Circuit Court of Appeals ruled that California tribes may possess legal authority over sports prediction contracts occurring on their land. The decision marks a significant development in the ongoing dispute over whether such contracts constitute gaming under federal law.
Why it matters
The ruling is critical because tribes argue that these prediction contracts qualify as gaming, which would require federal permission that is currently lacking. This determination challenges how derivatives exchanges and financial apps operate within the state's borders.
California voters previously rejected Proposition 26 and Proposition 27 in November 2022, maintaining the state's status as one where licensed sportsbooks remain unauthorized. The Ninth Circuit decision affirms that the location of transactions on tribal land holds legal precedence.
The players
Blue Lake Rancheria
This is a federally recognized tribe that initiated legal action to protect its sovereignty over gaming activities on its reservation.
Chicken Ranch Rancheria of Me-Wuk Indians
This tribe joined the legal dispute to argue that sports prediction platforms are conducting unauthorized gaming operations on tribal lands.
Kalshi
Kalshi is a federally regulated derivatives exchange that facilitates prediction markets on various real-world events.
Robinhood
This financial services company provides retail customers with access to a variety of investment vehicles, including sports prediction contracts.
The details
The court determined that federal commodities regulation does not prevent tribes from asserting claims under the Indian Gaming Regulatory Act. While the court favored the tribes on the issue of jurisdiction, it rejected their separate challenge regarding Kalshi's advertising claims about the legality of their contracts.
Timeline
November 2022: California voters rejected two separate sports betting initiatives.
September 16, 2026: The Ninth Circuit Court of Appeals issued its ruling regarding tribal authority.
Culture Shift
This decision reflects a broader societal tension between the rise of digital financial prediction platforms and the established regulatory framework of the Indian Gaming Regulatory Act. It underscores how traditional tribal gaming sovereignty is being tested against modern, app-based market models.
The ruling may lead to future changes in how residents access sports prediction apps, depending on the eventual outcome of the district court proceedings. While the state has not authorized traditional sportsbooks, these developments directly influence the availability and legality of prediction-based financial services.
The takeaway
This case highlights the ongoing legal complexities surrounding digital platforms that operate in grey areas of state and tribal gaming laws. Residents should stay informed as courts continue to determine how these financial contracts align with existing state regulatory standards.
Further reading
Learn more about the evolving legal landscape of Gambling activities in the region.
Source note: This article includes information reported by Hometown Station | KHTS FM 98.1 & AM 1220.
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