Prediction market operator Polymarket has filed a new lawsuit against Ohio regulators, arguing that the state’s online sports betting licensing requirements violate the US Constitution. The suit, which challenges Ohio's demand for licensees to maintain an in-state physical presence and servers, marks a significant escalation in the ongoing legal disputes that surround prediction markets in the US.
Polymarket's Constitutional Challenge
Polymarket contends that Ohio’s licensing framework discriminates against interstate commerce by effectively forcing nationally operating businesses to establish a local footprint. The company claims this amounts to “unlawful protectionism” under the Commerce Clause of the Constitution. This argument is a departure from previous litigation, which has focused more on the interplay between federal commodities law and state gambling regulation. Instead, Polymarket is questioning the fundamental legality of Ohio’s market entry requirements.
CFTC Opens Comment Periods on Event Contracts
The US Commodity Futures Trading Commission (CFTC) has opened two public comment periods, inviting industry input on the future of event contracts. The agency is seeking feedback on proposals to ban casino-style gambling products and to clarify the definition of 'swap' to explicitly include event contracts. These comment periods are open until November 18, 2026. The CFTC’s approach will help determine which kinds of contracts exchanges can offer, as well as how regulators distinguish between financial products and gambling.
Other Regulatory Developments
Elsewhere, Washington State has moved to dismiss a lawsuit from Novig regarding sports prediction markets, citing federal rulings that such markets remain subject to state gambling laws. In Canada, regulators have updated requirements to explicitly prohibit sports event contracts, aiming to draw a clear line between investment products and gambling.
Meanwhile, Kalshi, another major prediction market operator, has requested additional time in its Supreme Court proceedings as it continues to dispute state gambling regulations. The Lumbee Tribal Council in North Carolina has also approved a gaming ordinance, moving a potential casino project closer to a referendum among tribal members.
Why This Matters for the Industry
The outcome of Polymarket’s lawsuit could have far-reaching consequences for operators, affiliates, and suppliers seeking to enter or expand within US markets. If the court sides with Polymarket, it could challenge the ability of states to impose local presence requirements, potentially lowering barriers for national and international businesses. The CFTC’s decisions on event contracts will also play a critical role in shaping what kinds of prediction markets can legally operate, impacting compliance strategies and future product offerings. Clarity from regulators in both the US and Canada will help businesses assess risks and plan for cross-border operations.
Key takeaways
- Polymarket is suing Ohio, claiming its sports betting laws violate the US Constitution’s Commerce Clause.
- The CFTC is inviting public comment on rules for event contracts and casino-style gambling products until November 18, 2026.
- Washington State and Canadian regulators are reinforcing their positions on sports prediction markets.
- Legal and regulatory decisions in these cases may reshape market access and compliance requirements for operators and affiliates.