Ohio has escalated its fight with prediction markets. According to a Card Player report dated October 8, 2026, the state sent cease-and-desist orders to ten operators that offer sports event contracts to Ohio residents, arguing that they are running unlicensed sports gambling. The move follows a Sixth Circuit Court of Appeals opinion that supports the ability of states to enforce their gambling laws against these operators, and it comes as the Commodity Futures Trading Commission weighs a rule that could weaken the industry's central legal defense. For sportsbook customers, poker players who also bet on sports, and anyone watching the regulatory tug-of-war, this is a significant development.
Who Received the Letters
The ten recipients are Underdog, Robinhood, Polymarket, Coinbase, Novig, Gemini Titan, ProphetX, WeBull, Plus500, and Moomoo Financial. Kalshi was not on the list because it was already a party to the earlier litigation that Ohio won.
Ohio's letters take a hard line. They state that offering sports bets without the appropriate license is a felony, and they ask each recipient to confirm compliance in writing. The wording is blunt: "Plainly stated, [addressee] is operating online sports gaming." The state's position is that a sports event contract is simply a bet by another name, and that anyone offering it in Ohio must hold a state gaming license like the sportsbooks that operate there.
The Legal Backdrop: States vs. the CFTC
The central question is who regulates these products. Prediction market operators argue that their event contracts are swaps regulated by the CFTC, which would preempt state gambling laws. States counter that a contract on whether a team wins a game is a wager and belongs under state gaming regulation.
The Sixth Circuit opinion that Ohio cites supports the states' side. Michigan and Nevada have also removed prediction markets, at least for sports contracts. We have followed this escalation closely in earlier posts, including our reports on Kalshi's state lawsuits, the appeals court backing state prediction market rules, and Missouri's cease-and-desist.
Meanwhile, the CFTC has submitted a proposed rule to exclude "casino-style gambling products" from the definition of a swap. The concern is markets that mimic casino games, such as contracts on live roulette spins or blackjack hands. The prediction industry maintains that its event contracts are swaps and therefore exempt from state gambling law, so a narrower definition of swap could undercut that argument. The article notes that state disputes over sports contracts continue and expects that the Supreme Court may ultimately have to resolve the question.
Ohio's Complicated Relationship With Sports Betting
Ohio's aggressiveness is notable given the state's own history. Gov. Mike DeWine has said he regrets signing the law legalizing sports betting. In 2025, the state capped micro-bets at many sportsbooks at $200 after an alleged fixing scandal involving two Cleveland Guardians pitchers; that case is still in court. Republican lawmakers have proposed legislation to sharply restrict the industry, though the report says it appears unlikely to advance.
In other words, Ohio is simultaneously unhappy with the regulated market it created and determined to stop unlicensed competitors from operating outside it. For a licensed sportsbook that pays taxes and follows responsible gambling rules, a competing product that does neither is a competitive threat, which helps explain the political appetite for enforcement.
Kalshi's Media Push
Even as states push back, the industry is spreading its brand. Kalshi and CBS signed a sponsorship deal to feature Kalshi market data in CBS's coverage of the 2026 midterm elections. Kalshi already has media partnerships with CNN, Fox, and CNBC. Its 2024 presidential election market exceeded $670 million in volume, and traders have already put close to $100 million into markets on control of both congressional houses. Those numbers show why prediction markets are such a serious challenge to traditional sportsbooks and why regulators are paying attention. For more on that rivalry, see our analysis of prediction markets vs. sportsbooks.
What This Means for Sports Bettors
If you live in Ohio, expect some of the named platforms to restrict or change sports-related offerings in the state. Whether each operator complies, contests the letter, or simply carries on is not yet known, and the report does not say how quickly the state will follow up if it does not receive written confirmation.
More broadly, the patchwork is likely to continue. A product available in one state may be blocked in another, and the legal footing can change as courts rule. Before you deposit with any platform, check that it is licensed to take sports wagers where you live. Licensed sportsbooks are subject to state oversight, identity checks, and responsible gambling tools, while prediction market contracts are treated differently depending on the jurisdiction.
Our sportsbook coverage can help you compare options: see our sportsbooks hub and reviews of BetOnline Sportsbook and SportsBetting.ag. Always confirm that a site accepts customers from your state before signing up.
What It Means for Poker Players
Poker players are often sports bettors too, and plenty of sites bundle poker with a sportsbook and casino. The prediction market fight is relevant because it shapes where and how you can bet. It also shows a template for future crackdowns: state regulators using cease-and-desist letters, felony language, and court rulings to push unlicensed operators out.
Poker has been through similar fights. Online poker's legal history in the U.S. is full of state-by-state rules and federal arguments, and many players still rely on offshore-facing sites. If you play online, compare the options in our real money poker and safe poker sites guides, and review the US poker sites page for state-specific considerations. Our payments page explains deposit and withdrawal options, and our crypto poker page covers sites that accept digital currency.
Managing your money also matters when rules shift. Account freezes, product changes, and withdrawal delays are all possible when a platform is pushed out of a state. Keep your balances modest, withdraw winnings regularly, and review the bankroll management guide for tips on protecting your funds.
What to Watch Next
Several threads will determine how this plays out. First, how the ten recipients respond to Ohio's demand for written compliance. Second, whether the CFTC finalizes its proposed rule on casino-style products and how broadly the agency defines the term. Third, whether more states copy Ohio, Michigan, and Nevada. And fourth, whether the Supreme Court takes up the question of federal preemption, which would be the ultimate arbiter.
For now, the direction of travel favors the states. With an appeals court opinion in hand, Ohio has moved from lawsuit to letters, and other states may follow. Prediction markets still enjoy deep-pocketed backers and growing media partnerships, so the story is far from over. But for the first time, ten additional operators face a direct, written threat of felony exposure in one of the country's larger betting markets.