Kentucky has filed a lawsuit against Kalshi and Polymarket, accusing both companies of running illegal sports betting platforms. The state claims the platforms violate Kentucky's gambling laws, which prohibit unlicensed sports wagering outside the state's regulated horse racing and lottery systems.
The Allegations
The lawsuit, brought by the Kentucky attorney general's office, argues that Kalshi and Polymarket operate without the required licenses and approvals from state regulators. According to the complaint, the platforms allow users to place bets on the outcomes of sporting events, effectively acting as unlicensed sportsbooks. State law reserves such betting for authorized entities, mainly tied to horse racing and the Kentucky Lottery.
Kentucky's move is the latest in a broader crackdown on online gambling platforms that operate beyond state borders. The state has long maintained strict controls on gambling, and officials say these platforms skirt those rules. The suit seeks to block the companies from offering their services to Kentucky residents and demands restitution for any losses incurred by state citizens.
The Defendants
Kalshi and Polymarket are both platforms that facilitate event-based contracts — essentially wagers on whether specific events will happen. While they often describe themselves as prediction markets, Kentucky's lawsuit treats them as gambling operations. The state argues that betting on sports outcomes falls squarely under its definition of illegal gambling, regardless of how the platforms label their activities.
Neither company has publicly responded to the lawsuit as of this writing. The case adds to the legal challenges these platforms face in other jurisdictions, where regulators have also questioned whether their operations comply with local gambling laws.
What the State Seeks
Kentucky's legal action asks a court to permanently bar Kalshi and Polymarket from accepting bets from users located in the state. The suit also demands that the companies return any money collected from Kentucky residents, plus civil penalties for each violation of state gambling statutes. The exact number of alleged violations and the potential financial penalties are not specified in the initial filing, but such cases can result in substantial fines under state law.
The lawsuit is distinct from federal enforcement actions, as it stems entirely from state-level prohibitions. Kentucky has some of the most restrictive gambling laws in the country, with no commercial casinos or sportsbooks allowed outside the horse racing industry. This legal environment makes the state a particularly difficult market for unlicensed betting platforms.
The case is now pending in a Kentucky state court. No hearing dates have been set yet, but the state is pushing for a swift resolution to stop what it calls ongoing illegal activity.
