Baltimore Sues Kalshi and Polymarket Over Illegal Sports Betting Allegations
AI-GENERATEDThe City of Baltimore has filed lawsuits against prediction market operators, accusing them of running unlicensed sportsbooks disguised as financial platforms.
The legal landscape for prediction markets and social casinos is facing a major challenge in Baltimore. City officials have initiated lawsuits against major operators Kalshi and Polymarket, alleging that these platforms are essentially functioning as illegal sportsbooks. The legal actions, filed by Mayor Brandon Scott and the Baltimore City Council in the Circuit Court for Baltimore City, accuse the companies of violating the city's Consumer Protection Ordinance by misleading residents about the legality and regulatory status of their services.
The complaints argue that despite using terms like event contracts or prediction-market trades, the services provided are indistinguishable from traditional sports betting. Users are reportedly allowed to wager on game winners, point spreads, total scores, and individual player statistics. By avoiding the sportsbook label, these companies are accused of circumventing essential oversight, taxation, and responsible gambling requirements that licensed operators in Maryland must adhere to.
Numbers and facts
The litigation extends beyond prediction markets. On March 4, Baltimore also sued six major sweepstakes casino operators, including VGW Holdings (Chumba Casino), B2Services (McLuck), and High 5 Games. The city contends that the dual-currency model used by these platforms—where users buy virtual gold coins to receive bonus sweeps coins redeemable for cash—constitutes illegal gambling under state law. The city is seeking civil penalties, restitution for consumers, and an injunction to stop these platforms from operating within its jurisdiction.
"These companies are running sportsbooks without licenses and betting that a new label will put them above the law. It won't. Baltimore will not let multibillion-dollar companies put profits over people and harm our communities through illegal gambling." - Brandon Scott, Mayor of Baltimore
Background
City Solicitor Ebony M. Thompson stated that the city would not allow companies to bypass consumer protections by simply repackaging gambling as something else. The lawsuit highlights that the platforms closely resemble traditional online sportsbooks and offer similar wagers like moneyline bets and tournament outcomes. Furthermore, the city argues that these platforms target vulnerable populations, including minors and individuals struggling with gambling addiction, through cartoonish designs and celebrity endorsements from figures like Drake.
Adam Levitt, a founding partner at DiCello Levitt, noted that allowing these companies to evade gambling laws would set a dangerous precedent. The city aims to hold these companies accountable for deceptive conduct and ensure they operate within the same rules designed to protect the public. The push for civil penalties and the disgorgement of profits signals a zero-tolerance approach toward unlicensed operators trying to tap into the local market without proper authorization.
Why it matters for German players
For players in Germany, this legal battle in the U.S. underscores the global shift toward stricter regulation of online gambling alternatives. In Germany, the State Treaty on Gambling 2021 (GlüStV 2021) provides a clear framework, and only operators on the GGL whitelist are permitted to offer services. Prediction markets and sweepstakes models that attempt to bypass these rules would likely face immediate action from the GGL. German players are protected by the 1,000 Euro monthly deposit limit and the 1 Euro per spin rule, which are designed to prevent the very risks Baltimore officials are currently litigating against.
What it means for GGL-licensed casinos
For GGL-licensed casinos, the crackdown in Baltimore is a positive development. It reinforces the importance of a transparent, regulated market where all participants play by the same rules. When unlicensed entities are allowed to operate under the guise of financial trading or social gaming, it creates an unfair competitive environment. The GGL's proactive stance in Germany ensures that such grey-market activities are limited, protecting the integrity of the legal gambling sector and ensuring that tax revenues and consumer protection standards are maintained.
Frequently asked questions
Which companies are being sued by the City of Baltimore?
The lawsuits target prediction market operators Kalshi and Polymarket, as well as six sweepstakes operators including VGW Holdings and High 5 Games. The city accuses them of operating unlicensed gambling platforms in Maryland.
What is the core allegation against Kalshi and Polymarket?
Officials claim these platforms offer traditional sports betting on outcomes and player stats but disguise them as event contracts to avoid gambling regulations, taxes, and oversight.
How does the criticized sweepstakes model work?
Users purchase virtual coins and receive sweeps coins as a bonus, which can be wagered on casino-style games and redeemed for cash or prizes. The city argues this meets the legal definition of gambling.
What remedies is Baltimore seeking in court?
The city is asking for civil penalties, the return of profits to affected consumers, and a permanent injunction to prevent the companies from operating illegally in Baltimore.
Are these prediction markets legal to use in Germany?
In Germany, any betting platform must have a license from the GGL. Players should only use sites listed on the official whitelist to ensure they are protected by German law and deposit limits.
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About the author

Lisa Lustich
Editor-in-chief & casino tester
Lisa Lustich has been testing German-language online casinos since 1997 and runs the Lustich.de newsroom. More than 400 published reviews, certified player-protection advisor (BZgA training, 2019).
All articles by Lisa Lustich →Sources & further reading
- Joint Gambling Authority of the German Federal States (GGL): gluecksspiel-behoerde.de
- Whitelist of permitted online operators: GGL-Whitelist
- BZgA problem-gambling helpline: 0800 1 372 700 (free, anonymous, 24/7)
- Editorial methodology: Editorial guidelines Lustich.de
Gambling can be addictive. Please play responsibly. Help and counselling at 0800 1 372 700 (BZgA, free & anonymous).
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