Key Points
• A Michigan judge has temporarily barred Kalshi from allowing residents to trade sports event contracts for 14 days.
• The court ruled that Kalshi’s offerings may constitute illegal sports betting under Michigan law.
• Kalshi faces fines of $120,000 per day if it fails to comply with the court’s geolocation restrictions.
• The ruling adds to a growing legal battle between state regulators and federally regulated prediction markets.
Michigan Court Orders Temporary Halt to Sports Prediction Contracts
A Michigan court has temporarily blocked prediction market platform Kalshi from offering sports event contracts to residents, intensifying the ongoing legal conflict between state gambling regulators and federally regulated prediction markets.
In a ruling issued by Ingham County Circuit Court Judge Rosemarie Aquilina, Kalshi was ordered to immediately prevent Michigan residents from accessing its sports-related event contracts. The temporary restraining order remains in effect for 14 days and is scheduled to expire on July 13 unless extended by the court.
The order also imposes financial penalties of $120,000 per day should Kalshi fail to implement the required geolocation restrictions.
Court Says Sports Contracts Resemble Gambling
Judge Aquilina concluded that Michigan residents could suffer irreparable harm if the platform continued operating while the legal dispute proceeds.
In the ruling, the court stated that residents risk being “exploited by Kalshi’s sports betting operation masquerading as an investment opportunity,” echoing concerns raised by Michigan Attorney General Dana Nessel, who argues that the platform is offering unlicensed sports wagering rather than legitimate financial products.
Kalshi maintains that its contracts are federally regulated event futures governed by the Commodity Futures Trading Commission (CFTC), not gambling products regulated by individual states.
Legal Battle Expands Across the United States
Michigan becomes the second state to secure a court-ordered restriction against Kalshi’s sports prediction markets after Nevada previously obtained a temporary injunction earlier this year.
The broader regulatory dispute continues to expand nationwide. Kentucky recently filed lawsuits against Kalshi, Polymarket and several affiliated companies, alleging they operate illegal sportsbooks without state licenses. More than a dozen states have now taken legal or regulatory action against prediction market operators.
Meanwhile, the CFTC has challenged several state enforcement efforts, arguing that federally regulated event contracts fall exclusively under federal commodities law rather than state gambling statutes.
The outcome of these legal disputes could significantly shape the future regulatory landscape for prediction markets in the United States.
Sports Prediction Markets Continue Rapid Growth
Despite increasing legal scrutiny, prediction markets tied to sporting events continue experiencing rapid growth.
Trading activity accelerated following the start of the 2026 FIFA World Cup, with daily taker volume reaching a record $713 million on June 20, according to Dune Analytics.
Monthly trading data also reflects the sector’s expansion. Sports-related contracts generated approximately $9.5 billion in trading volume on Kalshi, representing a 40% monthly increase, while Polymarket recorded roughly $5.3 billion in sports-related volume, a 175% increase over the previous month.
Analysts at Bernstein estimate the 2026 FIFA World Cup could generate more than $3 billion in additional sports betting activity while contributing between $5 billion and $10 billion in new prediction market volume.
One of the largest individual contracts, predicting the eventual World Cup champion, has already surpassed $3.5 billion in trading volume on Polymarket alone.
Prediction Markets Attract New Crypto Users
The surge in sports prediction markets is also driving broader cryptocurrency adoption.
According to a Bitget Wallet study involving approximately 857,000 users, roughly 60% of individuals participating in World Cup prediction markets interacted with blockchain technology for the first time through these platforms.
This trend suggests prediction markets are increasingly serving as an entry point into decentralized finance and digital assets, introducing new users to blockchain-based financial applications through familiar sporting events.
Outlook
The Michigan ruling represents another important chapter in the growing legal battle over prediction markets in the United States. As states seek to classify sports event contracts as gambling while federal regulators argue they are legitimate financial derivatives, future court decisions are likely to play a defining role in determining how prediction markets operate nationwide.
With trading volumes continuing to rise and institutional interest growing, the regulatory outcome could have lasting implications for both the prediction market industry and the broader digital asset ecosystem.
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