Ohio Prediction Markets: The Absurd-Result Ruling, the 5 Million Dollar Fine, and What Residents Can Still Reach

Honestly, it is unsettled and actively contested, and Ohio has staked out one of the toughest positions in the country. Prediction-market platforms operate across the United States by registering with the Commodity Futures Trading Commission and treating their event contracts as federally regulated financial instruments. Ohio rejects that cover for anything resembling a bet on a game. Its regulators have branded Kalshi’s sports contracts unlicensed sports gaming, a federal judge agreed the products fall outside the federal framework the platforms rely on, and the state is trying to collect a multimillion-dollar penalty. No court has ordered the platforms to shut off Ohio residents, so the contracts remain reachable as a practical matter — but reachable is not the same as clearly lawful, and the specific legal risk here attaches to sports outcomes above all.

What makes Ohio distinct is the reasoning its judge used. Rather than resting on the usual observation that gambling has always been a state matter, Chief Judge Sarah D. Morrison zeroed in on what would happen if the platforms were right. If a contract paying out on the result of a ballgame is a federally regulated swap, then every sports bet is a swap, and every licensed Ohio sportsbook would have to move its entire operation onto a federal exchange or fold. She refused to read the law in a way that produced that outcome. That single move — treating the platforms’ theory as self-defeating rather than merely inconvenient — is why the Ohio case carries weight far beyond the state line.

So the practical status for a resident: you can still open and use these apps today, several major operators have kept Ohio live, and there is no ban on the books. But you are trading a product that Ohio has formally declared illegal in its own courts, the state is actively pressing to punish the largest operator, and a Sixth Circuit ruling expected in the coming months could change availability quickly. The rest of this page explains how the state got here and what to weigh. For the wider view of legal betting in the state, our Ohio gambling sites guide is the companion piece.

On March 9 and 10, 2026, Chief Judge Sarah D. Morrison of the U.S. District Court for the Southern District of Ohio, Eastern Division, denied Kalshi’s motion for a preliminary injunction against the Ohio Casino Control Commission and Attorney General Dave Yost. Kalshi had gone to federal court asking the judge to freeze Ohio’s cease-and-desist orders, arguing that the Commodity Exchange Act hands the CFTC exclusive authority over its event contracts and knocks out any conflicting state gaming law. To win, Kalshi needed to show it was likely to prevail on that theory. Morrison found it was not.

Her opinion picked apart the swap argument at its foundation. Congress, she wrote, left no sign it meant to sweep state sports-gambling law into a federal derivatives statute: “History reveals no evidence that Congress intended to preempt state sports gambling laws.” From there she reached for the interpretive canon that gives the ruling its identity. Ohio had argued that reading “swap” to include a contract on a sporting event would generate results Congress plainly never wanted. “The Court agrees,” Morrison wrote. Under Kalshi’s reading, she reasoned, all contracts for payment based on the outcome of a sporting event — all sports bets — would be forced onto designated contract markets like Kalshi itself, dragging every state-licensed sportsbook onto federally regulated exchanges and effectively legislating them out of existence through statutory interpretation. A court, she concluded, should not construe a statute to produce an absurd result that Congress did not intend.

The significance is in the contrast. Three days earlier the reasoning would have looked like an outlier; three weeks later it became the anchor for a national conflict. On April 6, 2026, the Third Circuit ruled the other way in KalshiEX LLC v. Flaherty, No. 25-1922, holding 2-1 that sports event contracts are swaps and that federal law preempts New Jersey’s gambling statutes as applied to those contracts on a registered exchange. Two federal courts, looking at the same product and the same statute, reached opposite conclusions within a month. Ohio did not create that split by itself, but Morrison’s opinion gave the state side its most quotable and most cited expression, and it is the version Ohio now carries into the appellate court.

Kalshi appealed the loss to the U.S. Court of Appeals for the Sixth Circuit and asked that court to block Ohio from enforcing its orders while the appeal ran. In April 2026 the panel refused, denying the emergency injunction and leaving Morrison’s ruling fully in force. That denial mattered on its own: it meant Ohio could keep pressing its enforcement machinery even before the appeal was decided.

The court then moved fast. It consolidated Ohio’s case with a related Tennessee appeal — a pairing that put the same panel in front of two states at once — and set argument for the morning of Thursday, July 30, 2026, in Cincinnati. The Ohio and Tennessee matters are a study in contrast, because the Tennessee district court had leaned toward the platforms while Ohio’s had ruled against them, so the panel is weighing both framings side by side. Judge Eric L. Clay led questioning that ran well past its scheduled length and centered on a threshold problem the platforms would rather skip: whether a contract on a game fits the statutory definition of a swap at all, before anyone even reaches the preemption question. Clay pressed Kalshi’s counsel on why the company was so dismissive of state regulators and lawmakers, noting that states face different situations and objectives with real consequences, and questioning the assumption that federal oversight automatically serves the public better than state oversight. Coverage of the hearing described Kalshi’s attorneys taking sustained fire from the bench.

The CFTC wanted a seat at that table and did not get one. The Sixth Circuit denied the agency’s request to take argument time as an amicus, limiting the federal regulator’s live role at the July 30 hearing even though it had filed a brief backing Kalshi. As of August 2, 2026, the panel had not ruled. A decision for Ohio would harden the conflict with the Third Circuit into a clean circuit split and make Supreme Court review of the swap question close to unavoidable; a decision for Kalshi would blunt Ohio’s enforcement and hand the platforms a second appellate win to set against New Jersey’s.

Enforcement did not wait for the appeal. On April 14, 2026, the Ohio Casino Control Commission served Kalshi with a notice of intent to impose a 5 million dollar civil penalty, the most aggressive dollar figure any state had put on a prediction-market operator to that point. The notice alleged that Kalshi had run unlicensed sports gaming in Ohio from roughly January 2025 onward and laid out a specific bill of particulars:

• Offering sports contracts to more than 35,000 Ohio residents while holding no Ohio sports gaming license.
• Letting customers as young as 18 trade on sports outcomes, when Ohio sets the minimum age for licensed sports betting at 21 — a three-year gap the commission flagged as a consumer-protection failure.
• Paying none of Ohio’s 20 percent sports betting tax on the activity.
• Skipping the 1.5 million dollar nonrefundable licensing fee that Ohio operators must pay.
• Operating without the required in-state partnership and continuing after the commission’s cease-and-desist orders.

Kalshi’s response was to keep going. Rather than geofence Ohio out the way some rivals did in other states, the company left its sports markets open to Ohio residents through the cease-and-desist orders, the federal loss, and the penalty notice itself. That refusal is precisely why Kalshi carries the heaviest exposure in the state — it is being penalized not only for the underlying activity but for continuing it in the face of formal orders. The pressure was not limited to regulators, either: Google stopped serving prediction-market advertising in Ohio starting June 2, 2026, narrowing the platforms’ marketing reach even as the contracts themselves stayed live.

Facing an administrative penalty it could not stop through the federal appeal, Kalshi opened a second front. On June 29, 2026, it sued the Ohio Casino Control Commission in the Franklin County Court of Common Pleas, asking a state judge to block the commission’s own proceeding before it can finalize the 5 million dollar fine. The core of the state-court complaint is a procedural argument dressed in constitutional clothing: Kalshi contends that Ohio’s administrative enforcement process denies it a jury trial guaranteed by the Ohio Constitution, and that a penalty of this size and character must be decided by a jury rather than imposed by an agency.

The maneuver leaves Kalshi fighting Ohio on two tracks that run in parallel and at different speeds. The federal appeal in the Sixth Circuit tests whether Ohio has any authority over these contracts at all. The Franklin County case tests whether, even assuming Ohio does, the commission can use its administrative process to collect. A win in either forum helps Kalshi; the state needs to hold both. As of August 2, 2026, neither matter had been resolved, and the state-court petition and the appeal were both still open.

Strip away the legal fight and the mechanics are worth understanding, because they explain why the fight exists. A prediction market lists a yes-or-no question — will a given team win, will a number land above a threshold — and lets people take either side. Prices run from one cent to 99 cents and read as the market’s live estimate of the odds, so a contract trading at 62 cents implies the crowd thinks the event is roughly 62 percent likely. If you are right, each contract settles at one dollar; if you are wrong, it settles at zero. Your profit is the gap between what you paid and where it resolves.

The structural point that platforms lean on is who sits on the other side of your trade. On a licensed Ohio sportsbook, the house sets the line and books your action — it is your counterparty and it wins when you lose. On an exchange-style prediction market, you are matched against another trader who took the opposite view, with the platform running the order book and collecting fees rather than betting against you. That peer-to-peer design is the heart of the industry’s argument that these are financial instruments rather than wagers. Ohio’s judge was unmoved: for a resident staking money on the Browns and collecting if they cover, she reasoned, the label on the counterparty does not change the economic reality of a sports bet. Some products blur the picture further by routing orders through a broker or distributor rather than a native exchange, which is part of why the litigation increasingly turns on which specific contracts, not which companies, are at issue.

These platforms’ menus stretch well past sports. Depending on the operator, an Ohio resident can find contracts on elections and political outcomes, economic releases such as interest-rate decisions and inflation prints, cryptocurrency price levels, and pop-culture questions from awards shows to box-office totals. Much of that catalog draws little objection anywhere, and the federal government has historically tolerated markets on economic and political events.

The legal heat in Ohio is almost entirely on the sports category. When the commission wrote its penalty notice, it did not complain about contracts on the Federal Reserve; it complained about contracts on games, framing them as sports gaming that Ohio licenses, taxes, and age-gates at 21. So the practical takeaway for a resident is that the further a contract sits from a sporting event, the less it looks like the thing Ohio is trying to stamp out, and the closer it sits, the more it lives inside the exact dispute Morrison decided. That distinction is also the direction the broader litigation is drifting nationally, as even judges friendly to the platforms have questioned whether every contract on the menu truly qualifies as a swap.

Other operators in our reviews that list or distribute event contracts under the same Ohio legal cloud include the platforms below. Each distributes differently and gates sports markets differently, so treat availability as platform-specific and check the app before trading.

Each distributes differently and gates sports markets differently, so treat availability as platform-specific. Our prediction markets hub covers every brand we track.

Underneath the jurisdictional argument is a simpler complaint the commission returns to again and again: these exchanges sit outside the safety net Ohio built for gambling. A resident trading sports contracts on a CFTC exchange gets no Ohio self-exclusion option, no state complaint or dispute-resolution channel through the commission, and, on most platforms, a minimum age of 18 rather than the 21 Ohio requires for licensed sports betting. The commission cited that age gap directly in its penalty notice, and it is the single most concrete consumer point in the whole case — an 18-year-old who cannot legally bet at an Ohio sportsbook can open a sports contract on an exchange the same afternoon.

FanDuel Predicts is where that changes, having chosen to layer on deposit limits, self-exclusion, and support referrals that state law does not force on it. The rest of the field largely relies on federal financial regulation, which was not designed around problem-gambling protection. There is also the question of your money if a platform is eventually forced to leave. In other states, operators pushed out by court orders have generally let users cash out open positions and withdraw what is left, and some orders required it — but there is no Ohio-guaranteed process for a CFTC exchange, so a balance sitting on one of these apps does not carry the protections an account at a licensed Ohio book would.

Reporting on prediction-market winnings is genuinely unsettled, and this is not tax advice. Kalshi does not send 1099-B forms for its event contracts, the IRS has not published formal guidance classifying this activity, and tax professionals disagree over whether gains are gambling income, ordinary income, capital gains, or something governed by the futures rules of Section 1256. Distributed products routed through a broker may be reported differently than exchange-native ones, so the answer can vary by which platform you used. Ohio’s own 20 percent sports betting tax, the one at the center of the commission’s fine, falls on licensed operators rather than on you as a trader — but the absence of that operator-level tax is part of what Ohio says makes the platforms unlawful. If you have realized meaningful gains, keep your own records and talk to a professional rather than assuming a platform will hand you a tidy tax form.

For a bettor focused on games, Ohio already offers a product with none of this legal fog. The state launched legal mobile sports betting on January 1, 2023, and multiple operators hold Ohio licenses under Casino Control Commission oversight, complete with the 21-and-up requirement, a state self-exclusion registry, and Ohio consumer protections behind every account. A bet placed with one of those books is unambiguously regulated gambling with a defined legal footing; a sports contract on an exchange is a product Ohio has declared illegal and is trying to penalize. The practical differences are real too — a licensed book is your counterparty with fixed odds and familiar bet types, while an exchange matches you against other traders at prices that move like a market. If certainty of legal standing matters to you, the licensed route is the clear one. Compare operators on our Ohio online sportsbooks page, see which other states have online sportsbooks, or start at the main online sportsbooks hub.

The federal regulator is firmly on Kalshi’s side of this. On May 12, 2026, the CFTC filed an amicus brief in the Sixth Circuit (No. 26-3196) asserting that it holds exclusive jurisdiction over event contracts traded on a registered exchange and that Ohio’s enforcement trespasses on federal ground. Under its current leadership the agency has gone further than briefs, signaling it will sue state regulators that interfere with federally licensed operators and following through against a string of states. Its live influence at the Ohio argument was capped, though, when the Sixth Circuit declined to give it hearing time on July 30.

Ohio, for its part, is far from isolated. A large bipartisan coalition of states — reported in the range of 37 to 39 jurisdictions plus the District of Columbia depending on the count — filed amicus support for state authority, an unusually broad alignment of red and blue attorneys general against the preemption theory. That coalition reframes the Ohio case as a proxy for a national verdict: the platforms need to win almost everywhere to keep their model intact, while the states need to win in only a few places to force the question upward. If the Sixth Circuit sides with Ohio, the conflict with the Third Circuit becomes clean, and the Supreme Court’s path to taking up whether a sports contract is a swap grows short.

Lawmakers in Columbus are preparing for the chance that the platforms ultimately win in court, and their answer is to regulate rather than merely prohibit.

DeMora pitched SB 430 explicitly as a fallback framework — a way for Ohio to capture and control the activity if the Supreme Court eventually rules for the platforms rather than the states. Both bills are pending, not law. Treat SB 430 as a signal of where Ohio would go if the courts force its hand, not as the current rule — the current rule is still enforcement under the existing gaming statutes. Verify their progress on the Ohio Legislature site or LegiScan before treating anything as final.

Ohio belongs to a cluster of states that chose confrontation over accommodation, but each picked a different weapon, and the contrast sharpens what Ohio is doing.

• Nevada leaned hardest on the enforcement side, winning a state trial-court block and pushing Kalshi toward contempt exposure after the company declined to geofence, while rivals like Crypto.com and Robinhood voluntarily pulled their Nevada sports markets. Ohio matched the aggression with a dollar figure instead of a contempt threat.
• New York ran a dual federal-and-state track much like Ohio’s, and on July 31, 2026 its attorney general escalated to a state-court petition seeking penalties reported in the tens of billions — a far larger number than Ohio’s 5 million dollars, but built on the same unlicensed-operation and under-21 arguments.
• Arizona went where no other state did, converting a restraining order into the first district-level merits injunction holding federal law preempts state gambling statutes as applied to these markets, after bringing criminal charges — a posture more extreme than Ohio’s civil route.
• Tennessee sits on the opposite side: its district court leaned toward the platforms, which is exactly why the Sixth Circuit paired it with Ohio, letting one panel weigh both framings at once.
• New Jersey is the case Ohio is really arguing against — the Third Circuit’s pro-Kalshi ruling is the precedent Morrison’s reasoning was built to counter.

Set against that field, Ohio’s signature is the combination of a quotable, widely cited district-court opinion and a concrete financial penalty, pursued while the operator kept trading. It is neither the largest dollar demand nor the only criminal case, but its legal reasoning may travel the furthest.

• The Sixth Circuit ruling in the consolidated Ohio and Tennessee appeals (No. 26-3196). A decision for Ohio creates a clean circuit split; a decision for Kalshi undercuts the enforcement drive. Pending as of August 2, 2026.
• The Franklin County case. If a state judge lets the jury-trial theory proceed, the 5 million dollar penalty could stall; if not, the commission can move to finalize it.
• SB 430’s path through the Senate Select Committee on Gaming, which would signal whether Ohio pivots from prohibition toward licensing and taxing.
• Any Supreme Court petition flowing from the circuit split, which would put the swap question before the nation’s highest court and moot much of the state-by-state fighting.
• Platform footprints inside Ohio. Watch for any operator quietly geofencing the state, which would be the first practical sign the legal risk is changing behavior on the ground.

• Ohio Casino Control Commission — enforcement notices, the April 14, 2026 penalty notice, and Ohio sports gaming rules (casinocontrol.ohio.gov).
• U.S. District Court for the Southern District of Ohio — Kalshi v. Ohio Casino Control Commission, preliminary-injunction order, March 2026 (Chief Judge Sarah D. Morrison); docket via CourtListener.
• U.S. Court of Appeals for the Sixth Circuit — No. 26-3196, consolidated Ohio and Tennessee appeals; July 30, 2026 oral argument; CFTC amicus filed May 12, 2026.
• Franklin County Court of Common Pleas — Kalshi complaint against the Ohio Casino Control Commission, filed June 29, 2026.
• Ohio General Assembly and LegiScan — Senate Bill 430 (Sen. Bill DeMora), Senate Select Committee on Gaming, plus the pending official-trading ban bill.
• Commodity Futures Trading Commission — event-contract posture and amicus filings (cftc.gov).
• National context: our is online gambling legal overview and state-by-state index.

Event-contract law is in near-constant motion. Every ruling and date on this page is current to August 2, 2026; confirm the latest status of the Sixth Circuit ruling and the Franklin County proceeding before acting on anything here.