TL;DR
- A Michigan judge issued a 14-day restraining order blocking Kalshi from offering sports-related event contracts to residents until July 13.
- The order threatens $120,000 in daily fines if Kalshi fails to comply with geolocation requirements imposed by the court.
- The ruling deepens the federal-state fight over prediction markets as sports volumes surge, with Kalshi, Polymarket, the CFTC and state regulators disputing oversight during World Cup-driven trading growth across platforms nationwide.
Kalshi has been temporarily blocked from offering sports-related event contracts in Michigan, giving the prediction market industry another sharp test of where trading ends and gambling law begins. Ingham County Circuit Court Judge Rosemarie Aquilina issued a 14-day restraining order on Monday, barring the platform from serving Michigan residents with sports markets until July 13. The order also threatens $120,000 in daily fines if Kalshi fails to meet geolocation requirements. The striking point is that a state court has turned market access into an immediate compliance risk, not a distant regulatory argument.
Michigan Attorney General Dana Nessel framed the case as consumer protection, arguing that state gambling laws shield residents from unlicensed and predatory operators. The state sued Kalshi in March, alleging violations of Michigan’s Lawful Sports Betting Act through sports event contracts that regulators view as unlicensed betting. Kalshi had tried to move the case into federal court, but a federal judge remanded it back to state court before the restraining order followed. In practical terms, Michigan has forced the dispute back onto state gambling terrain, where prediction-market framing offers less automatic protection.
Federal Oversight Runs Into State Gambling Law
The ruling lands inside a wider jurisdictional fight involving Kalshi, Polymarket, the Commodity Futures Trading Commission and multiple state regulators. Prediction market platforms and the CFTC argue federally regulated event contracts should be available nationwide because federal oversight preempts state law. States counter that sports-linked contracts function like gambling products when offered to residents without local licenses. More than a dozen states have pursued operators, Kentucky sued five platforms on June 17, and Michigan is now the second state after Nevada to secure a court-ordered restriction. That makes sports markets the central legal flashpoint.
The timing is uncomfortable because sports volumes are surging. Daily prediction-market taker volume hit a record $713 million on June 20, shortly after the FIFA World Cup began on June 11. Sports became the leading category on the largest platforms, rising 40% to $9.5 billion on Kalshi and 175% to $5.3 billion on Polymarket. The World Cup winner contract alone has topped $3.5 billion on Polymarket. For now, Kalshi’s Michigan setback shows growth is outrunning legal settlement, leaving platforms to scale nationally while courts redraw access state by state in real time now online.
