Ohio Escalates Legal Campaign Against Prediction Market Operators

Ohio is preparing to intensify its regulatory crackdown on prediction market operators, with Governor Mike DeWine signaling that the state will move beyond cease-and-desist notices toward formal legal action. The Ohio Casino Control Commission has already issued warnings to several companies, including Kalshi, Polymarket, and Robinhood, over contracts related to sporting events and elections. DeWine's position centers on a straightforward argument: prediction market operators should not be permitted to offer sports-related bets without submitting to the same regulatory requirements imposed on Ohio's licensed sportsbooks.

The legal dispute hinges on a fundamental question of jurisdictional authority. Kalshi contends that its event contracts fall under federal regulation by the Commodity Futures Trading Commission (CFTC) and therefore should be exempt from state gaming oversight. However, a federal court recently ruled that Kalshi must comply with Ohio law, a decision the company subsequently challenged. This clash between federal and state authority could set significant precedent for how broadly states can restrict sports-related financial contracts offered by federally regulated platforms.

Ohio has maintained restrictions on certain types of sports betting since 2005, specifically prohibiting wagers on specific plays within games. State regulators argue these prohibitions should apply to prediction market contracts regardless of how platforms label their products. DeWine has also raised concerns about prediction market advertising appearing during sporting events, characterizing operator behavior as an attempt to circumvent state supervision by operating under a different regulatory framework.

Two pieces of legislation pending in the Ohio Legislature could substantially reshape the state's enforcement posture. Senate Bill 479 would prohibit betting on elections and prevent prediction market websites from offering election-related contracts. Senate Bill 430 would classify sporting event contracts as regulated sports gambling, subjecting them to state taxation and oversight. Neither proposal has generated substantial momentum in the legislature to date.

Beyond the jurisdictional dispute, Ohio's regulators and gambling harm prevention experts have raised consumer protection concerns. Derek Longmeier of the Problem Gambling Network of Ohio warned in September that prediction markets could expose younger adults to gambling at age 18, whereas Ohio's legal age for traditional sports betting is 21. The 18-to-25 age demographic presents particular vulnerability, Longmeier argued, citing the ease of online trading and the psychological tendency to chase losses. These concerns echo broader industry conversations about responsible gambling frameworks in emerging markets.

The controversy has also exposed tensions within Ohio's gambling oversight ecosystem. The Ohio Casino Control Commission's decision to sever ties with the National Council on Problem Gambling in September following NCPG's acceptance of a Kalshi donation highlighted potential conflicts of interest. The NCPG stated that accepting funding does not constitute endorsement, yet the episode demonstrates how prediction markets have complicated relationships between regulators and harm prevention organizations.

Ohio's escalating enforcement posture reflects a broader pattern across state jurisdictions grappling with prediction market expansion. As CasinoAdvisor tracks, the regulatory landscape for these products remains fragmented, with states increasingly viewing prediction markets as potential gambling evasion schemes rather than commodity trading platforms. The outcome of Ohio's legal challenges could influence how other states approach similar enforcement actions.