Sports event contracts have produced the sharpest federal-state jurisdictional split in US derivatives law in a generation: the Third Circuit’s April 6, 2026 ruling that the Commodity Exchange Act (CEA) gives the Commodity Futures Trading Commission (CFTC) exclusive jurisdiction over Kalshi’s sports contracts has New Jersey preparing a Supreme Court petition due September 4, 2026, while Michigan became the second state to block the products on July 1 — and the industry now alleges the casino lobby is drafting state regulators’ letters.

The stakes are structural. If sports event contracts are CEA-governed futures, a Designated Contract Market (DCM) can self-certify them under CFTC Regulation 40.2 and offer them in all 50 states — bypassing every state gaming licence, tax and consumer-protection regime built since Murphy v. NCAA (2018). If they are wagers, roughly 38 state regimes apply and the federal exchange model collapses. This longform walks the statute, the circuit split now forming, the international contrast — the UK and EU banned the closest retail analogue, binary options, in 2018–2019 — and what the September 4 certiorari deadline means for exchanges, brokers and compliance teams.

Key Facts:

• The Third Circuit affirmed Kalshi’s preliminary injunction against New Jersey on April 6, 2026, holding the CEA’s exclusive-jurisdiction clause (7 U.S.C. §2(a)(1)(A)) likely preempts state gaming enforcement — Paul, Weiss client memo, April 2026
• New Jersey’s Solicitor General filed for an extension on June 26, 2026; the state’s Supreme Court certiorari petition is now due September 4, 2026 — Casino.org, July 2026
• A Michigan court allowed the state’s block on Kalshi’s sports contracts, making Michigan the second state to succeed, effective July 1, 2026 — GamblingNews, July 2, 2026
• The Coalition for Prediction Markets (Kalshi, Crypto.com, Robinhood, Coinbase) alleged on July 2, 2026 that Maryland’s regulator sent the CFTC a letter drafted by the American Gaming Association eight days earlier — CasinoBeats, July 2, 2026
• The CFTC’s event-contract review power sits in CEA §5c(c)(5)(C) (7 U.S.C. §7a-2(c)(5)(C)), which lets the agency prohibit contracts involving “gaming” if contrary to the public interest — statute text
• Precedent enforcement: the CFTC fined Polymarket’s operator $1.4 million in January 2022 (CFTC Order, In re Blockratize d/b/a Polymarket, No. 22-09) for offering unregistered event-based binary options — CFTC.gov
• A proposed New Jersey bill would tax prediction-market operators at 9%, projected to raise $15.3 million annually by 2027 — GamblingNews, July 2, 2026

Methodology and sources

This analysis rests on the primary statute (Commodity Exchange Act, 7 U.S.C. §2(a)(1)(A) and §7a-2(c)(5)(C)), the Third Circuit’s April 6, 2026 preliminary-injunction decision and the law-firm analyses of it (Paul, Weiss; Skadden; Holland & Knight; Lowenstein Sandler), the CFTC’s January 2022 Polymarket order, the FCA’s Policy Statement PS19/11 (UK binary-options ban), and ESMA’s 2018 product-intervention measures under Article 40 of the Markets in Financial Instruments Regulation (MiFIR). Reporting from Casino.org, CasinoBeats and GamblingNews (July 1–2, 2026) supplies the current procedural posture. Time window: April 2025–July 3, 2026. Jurisdictional scope: US federal, US states (New Jersey, Michigan, Maryland, Nevada), UK, EU. Caveat: the Third Circuit ruling is a preliminary-injunction appeal, not a final merits decision — the preemption holding is a likelihood finding, not settled law.

What the statute actually says

The entire fight compresses into two provisions. First, 7 U.S.C. §2(a)(1)(A) grants the CFTC “exclusive jurisdiction” over accounts, agreements and transactions involving contracts of sale of a commodity for future delivery — including swaps — traded on a CFTC-registered exchange. Kalshi is a registered DCM; its argument, accepted by the Third Circuit majority (Paul, Weiss client memo, April 2026), is that once a contract lists on a DCM, states cannot regulate it as gambling because the CEA occupies the field.

Second, CEA §5c(c)(5)(C) — the “special rule” added by Dodd-Frank — empowers the CFTC to review and prohibit event contracts that “involve” activity including “gaming” or activity unlawful under state law, where contrary to the public interest. The states’ argument is that this provision proves Congress knew event contracts could touch gaming and gave the CFTC a veto — not a mandate to displace state gambling law wholesale when the agency declines to act.

What is a sports event contract under US law? A sports event contract is a binary derivative listed on a CFTC-registered exchange that pays a fixed amount if a specified sporting outcome occurs — say, $1 per contract if a named team wins — and expires worthless otherwise, with pricing in cents that doubles as an implied probability. Under the Third Circuit’s April 6, 2026 reading, these instruments are “transactions involving swaps” within 7 U.S.C. §2(a)(1)(A), so the Commodity Exchange Act preempts state gaming enforcement against a Designated Contract Market that lists them, and any challenge must run through the CFTC’s special-rule review under §7a-2(c)(5)(C). Under the states’ reading, the same instrument is functionally a sports wager: New Jersey licenses and taxes sportsbooks at up to 14.25% online, while a DCM pays no state gaming tax and observes no state self-exclusion, age-verification or integrity rules.

Jurisdiction / Regulator	Instrument treatment	Key rule / date	Current status	Sanction / penalty example
US federal (CFTC)	Event contracts = derivatives on registered DCMs	7 U.S.C. §2(a)(1)(A); §7a-2(c)(5)(C); Reg 40.2 self-certification	Sports contracts trading nationally; no prohibition issued	In re Blockratize (Polymarket), No. 22-09, Jan 3, 2022: $1.4m for unregistered offering
US states (NJ, MI, MD, NV)	Unlicensed sports wagering	State gaming acts; cease-and-desist orders from March 2025	NJ enjoined (3rd Cir., Apr 6, 2026; cert petition due Sep 4); Michigan block effective Jul 1, 2026	C&D orders; NJ proposes 9% operator tax ($15.3m/yr projected)
UK (FCA / Gambling Commission)	Binary options banned for retail; event betting = gambling	FCA PS19/11, effective April 2, 2019; Gambling Act 2005	Permanent retail ban on binaries; sports betting licensed by the Gambling Commission	FCA ban carries full FSMA enforcement toolkit; unlicensed operation is a criminal offence
EU (ESMA / national CAs)	Binary options prohibited for retail clients	ESMA product intervention under MiFIR Art. 40, July 2, 2018; national measures from 2019	Retail prohibition made permanent by most member states	National competent authorities enforce; e.g. CySEC licence withdrawals for breaches

Sources: statute text via uscode.house.gov; Third Circuit analyses (Paul, Weiss; Skadden); CFTC Order No. 22-09; FCA PS19/11; ESMA Decision (EU) 2018/795. Last updated July 3, 2026.

How the four regimes diverge — and where the arbitrage sits

The comparison exposes an inversion unique to the United States. The UK and EU looked at retail binary event-outcome products a decade ago and concluded they were structurally harmful: ESMA’s July 2, 2018 prohibition under MiFIR Article 40 cited consistent retail losses, and the FCA’s PS19/11 made the UK ban permanent from April 2, 2019, estimating it would save retail consumers up to £17 million a year. In both jurisdictions, sports-outcome products live exclusively inside gambling law, with licensing, levies and self-exclusion obligations.

The US, by contrast, is federalising the same exposure as a financial instrument. That creates a textbook regulatory-arbitrage corridor: an operator that would need 38 separate state licences as a sportsbook needs one DCM registration as an exchange — no state gaming taxes, no state responsible-gambling framework, and access to the dozen-plus states that never legalised sports betting at all. It also explains the casino industry’s intensity: licensed sportsbooks carry a cost structure their federally chartered competitors do not. The Coalition for Prediction Markets’ July 2 allegation — that Maryland’s letter to the CFTC reproduced an American Gaming Association draft nearly word-for-word — is the industry-capture counter-narrative, and whatever its merits, it signals discovery-stage litigation tactics have arrived.

“This issue is tremendously important: The Third Circuit majority’s conclusion — that sports bets fall under the exclusive jurisdiction of the Commodity Exchange Act and that the Act preempts state regulation of these sports bets — would federalize a multibillion-dollar-a-year sports-wagering industry at the expense of every state law in the country.”

— Jeremy Feigenbaum, Solicitor General, State of New Jersey
(Casino.org)

Enforcement context: from Polymarket’s $1.4 million to a two-front war

The CFTC’s own enforcement history frames the irony. In In re Blockratize, Inc. d/b/a Polymarket.com (CFTC Order No. 22-09, January 3, 2022), the agency imposed a $1.4 million civil monetary penalty for offering off-exchange event-based binary options without registration — establishing that event contracts are CEA instruments that belong on registered venues. Kalshi’s litigation strategy weaponises that premise: if these products are CEA instruments when the CFTC prosecutes them, they are CEA instruments when states try to.

The state-court front then split. After Nevada and New Jersey issued cease-and-desist orders in March 2025, Kalshi won preliminary injunctions in both states; the New Jersey case (KalshiEX LLC v. Flaherty) produced the Third Circuit’s April 6, 2026 affirmance — the first federal appellate ruling on the question. Michigan broke the pattern: a state-court judge let its block stand, effective July 1, 2026, making Michigan the second state to keep Kalshi’s sports contracts out (GamblingNews, July 2, 2026) and setting up exactly the kind of split that invites Supreme Court review. Meanwhile the coalition’s auditor letters in Maryland open a second, political front — alleging, in CEO Sean Patrick Maloney’s words, a “systemic scheme” of lobby-drafted regulatory correspondence.

What this means for exchanges, brokers and compliance teams

For DCMs and would-be event-contract listers, the operating assumption through at least Q1 2027 is contested legality: the Third Circuit injunction protects listing in the Third Circuit’s states, but Michigan shows a state-court route around it, and a granted certiorari petition would put the entire model before the Supreme Court in the 2026–27 term. Prudent venues are documenting Reg 40.2 self-certification files to litigation standard and geofencing contingency plans per state.

For brokers routing customer flow — including the FCM-model brokerages and retail platforms in the coalition (Robinhood, Crypto.com, Coinbase) — the exposure is state-by-state: a state that wins an unlicensed-gambling theory against the venue can extend it to distributors. Onboarding disclosures, state-eligibility gating and marketing language (“trading” versus “betting”) are the live compliance surfaces. For fund managers, the question is venue risk on open positions if a state forces a wind-down — Michigan’s July 1 block is the test case for orderly position resolution. And for legal teams at licensed sportsbooks, the AGA-Maryland disclosure is a warning that advocacy correspondence with regulators is now discoverable ammunition; assume everything drafted for a state agency will surface. UK- and EU-facing firms should note the cleaner rule at home: retail binaries remain banned outright, and routing EU retail clients to US event contracts would collide with national product-intervention measures — a divergence we mapped in our US perp-futures versus UK/EU retail rules analysis.

“That’s not what the citizens of Maryland deserve. They deserve people doing the public’s work, not running errands for casino lobbyists.”

— Sean Patrick Maloney, Chief Executive Officer, Coalition for Prediction Markets
(CasinoBeats)

The forward view: September 4 and three ways this breaks

Three tracks now run in parallel. Track one is the Supreme Court: New Jersey’s extension moved its certiorari deadline to September 4, 2026, and a Michigan-versus-Third-Circuit split materially raises the odds of a grant; a merits decision would land by mid-2027. Track two is the CFTC itself: the agency has never exercised its §7a-2(c)(5)(C) power against sports contracts, and its posture — supportive under current leadership — could flip with a commission majority, which would moot the preemption question by prohibition. Track three is legislative: New Jersey’s 9% operator-tax bill and Senator Shirley Turner’s prohibition bill show states hedging — if they cannot ban the products, they will try to tax them, raising the next preemption fight over whether states can tax a federally regulated exchange’s activity. Watch also whether the CLARITY Act’s market-structure rewrite — covered in our CLARITY Act analysis — becomes the vehicle for an explicit congressional answer, and whether the offshore-enforcement pattern we tracked in retail FX leverage caps and retail prop trading repeats here if state bans push volume to unregulated venues.

FAQ

Are sports event contracts legal in the United States?

Federally, yes for now: they trade on CFTC-registered Designated Contract Markets under self-certification (CFTC Regulation 40.2), and the Third Circuit’s April 6, 2026 ruling blocks New Jersey from enforcing its gaming laws against Kalshi while litigation continues. But the ruling is preliminary, Michigan’s block stands as of July 1, 2026, and a Supreme Court petition is due September 4, 2026 — so the answer is jurisdiction-dependent and unstable.

What did the Third Circuit actually decide?

It affirmed a preliminary injunction, holding New Jersey is unlikely to succeed because sports event contracts on a registered DCM fall within the CEA’s exclusive-jurisdiction clause (7 U.S.C. §2(a)(1)(A)), which preempts state regulation. It is a likelihood-of-success finding in KalshiEX LLC v. Flaherty, not a final merits judgment — a distinction New Jersey’s certiorari papers stress.

Can the CFTC ban sports event contracts itself?

Yes. CEA §5c(c)(5)(C) (7 U.S.C. §7a-2(c)(5)(C)) lets the CFTC review and prohibit event contracts that involve “gaming” or state-unlawful activity if contrary to the public interest. The agency has not exercised that power against sports contracts — the states’ core complaint is that the CFTC’s inaction, combined with preemption, leaves sports wagering effectively unregulated at the state level.

How do the UK and EU treat these products?

As gambling or banned products. ESMA prohibited the sale of binary options to retail clients from July 2, 2018 under MiFIR Article 40, and the FCA made the UK ban permanent from April 2, 2019 (PS19/11), estimating up to £17 million in annual retail savings. Sports betting in both jurisdictions requires a gambling licence — there is no exchange-listed retail path around it.

What happened with Polymarket in 2022?

The CFTC fined Polymarket’s operator Blockratize $1.4 million (Order No. 22-09, January 3, 2022) for offering event-based binary options without registering as a designated venue. The order is now doubled-edged precedent: it confirms event contracts are CEA instruments — the same premise underpinning Kalshi’s preemption victory over the states.

What should regulated firms do before September 4, 2026?

Track three dates: the certiorari filing (September 4), any CFTC move under its special-rule authority, and state legislative sessions taking up prediction-market tax or prohibition bills such as New Jersey’s proposed 9% levy. Venues should keep self-certification files litigation-ready; distributors should maintain state-eligibility gating; and licensed sportsbooks should treat regulator correspondence as discoverable.

This article is informational analysis only and does not constitute legal, regulatory, tax, or investment advice. Regulatory frameworks change frequently and interpretation depends on facts and circumstances; primary documents and official regulator guidance always supersede summaries. Firms should consult qualified legal counsel and their relevant supervisory authority before taking any action based on the analysis above.