A trio of appellate judges spent Friday’s hearing sounding distinctly unconvinced by one of the prediction market industry’s central legal arguments — that betting on a football game somehow stops being a bet once it’s wrapped in the language of financial derivatives. The showdown, playing out at the Ninth Circuit in San Francisco, pits three California tribes against Kalshi and its distribution partner Robinhood, and the outcome could ripple far beyond the reservations at the center of the fight.
Three Tribes, One Big Question
Blue Lake Rancheria, Chicken Ranch Rancheria of Me-Wuk Indians, and Picayune Rancheria of the Chukchansi Indians are trying to reverse a federal judge’s decision from last November that refused to block Kalshi‘s sports-based contracts from being offered on their lands. Their attorney told the panel that letting an outside company sidestep tribal gaming ordinances entirely — simply because that company never signed the underlying compact — would hollow out the protections tribes fought for under the Indian Gaming Regulatory Act. Kalshi’s side sees it differently, arguing the tribes’ own agreements govern only what the tribes themselves may offer, not what an independent, federally licensed exchange makes available to anyone with a smartphone.
Judges Sound Skeptical of Kalshi’s Framing
The bench didn’t hide its doubts. One judge remarked flatly that the contracts in question “sound like a bet.” Another floated that it wouldn’t be unreasonable to treat tribal land as outside the reach of the federal commodities framework Kalshi leans on for cover. Much of the argument turned on a simple hypothetical: someone standing on tribal soil, opening an app, and putting money on the outcome of a match — does the fact that the transaction is technically routed through a CFTC-registered exchange change what’s actually happening on the ground? The tribes’ lawyer argued it doesn’t, comparing the situation to an old Supreme Court liquor-sales case that found conduct legal elsewhere can still become unlawful the moment it crosses onto reservation land.
A Fight Bigger Than Three Reservations
This isn’t an isolated skirmish. The same legal question — whether a sports contract sold through a Wall Street-style exchange counts as gambling once it lands on tribal or state soil — is being fought simultaneously in Nevada, Wisconsin, Ohio, Tennessee, and elsewhere, with mixed results so far. A Ninth Circuit panel hearing Nevada’s separate case against Kalshi seemed similarly unconvinced by the company’s arguments earlier this year, while a Wisconsin judge sided with the Ho-Chunk Nation on the merits, even if he stopped short of ordering an injunction. Notably, more than two dozen states plus Washington, D.C. filed a brief backing the tribes, warning that a win for Kalshi would let any federally registered exchange route around tribal and state gaming law simply by dressing wagers up as financial contracts.
The Stakes for California’s Tribal Gaming Economy
The timing matters. California has never legalized standalone sports betting, and its tribes have spent years defending their exclusive right to offer gaming under state compacts — funding everything from healthcare to language preservation programs in the process. Tribal gaming leadership has described the rise of prediction markets as an existential threat to that model, with one industry association chairman citing early estimates that platforms like Kalshi have already chipped several percentage points off tribal gaming revenue nationally. That pressure is part of why California tribes recently reaffirmed plans for a 2028 ballot initiative aimed at giving them a lawful, tribally run path into online sports betting — a plan tribal leaders say prediction markets are actively undercutting before it can even reach voters.
What Comes Next
The panel gave no indication of when it will rule, and even a win for the tribes wouldn’t end the underlying lawsuit outright — it would send the injunction question back to the district court for another look. But given how pointed Friday’s questioning was, both sides now face real uncertainty heading into a decision that could help settle, or further complicate, one of the thorniest jurisdictional puzzles in American gambling law: who gets to decide what counts as a bet, and where.
