Is Polymarket legal in Ohio?

Yes, but contested: Polymarket's sports contracts face an open dispute in Ohio, with no restriction in force. On October 2, 2026 the Ohio Casino Control Commission ordered Polymarket US (PM US Tech, QC Tech LLC) to stop sports event contracts in Ohio. It called them unlicensed sports gaming and bookmaking, and gave it 14 days to confirm in writing. It relies on the Sixth Circuit's September 25, 2026 ruling that Ohio's sports gaming law applies. Polymarket US sued Ohio officials in federal court on October 16. No court order is in force, and Polymarket US's app listing names only Nevada as closed.

Updated Oct 19, 2026 · not legal advice

Reviewed by Vardan Khachatryan · Oct 19, 2026

The short answer

Yes, but contested: Polymarket's sports contracts face an open dispute in Ohio, with no restriction in force.

Ohio Casino Control Commission cease-and-desist letter to PM US Tech (QC Tech LLC) (Oct 2, 2026); QCX LLC v. Wilson, No. 2:26-cv-01502 (S.D. Ohio, filed Oct 16, 2026) – source

What you can trade from Ohio

Everything Polymarket lists nationally, including sports contracts: no restriction on them is in force in Ohio while the dispute continues. Other venues here: Kalshi (disputed), Robinhood (disputed), DraftKings (not covered), FanDuel (not covered).

What Ohio's regulator has said

Oct 2, 2026
cease and desist · openOhio's Casino Control Commission ordered Polymarket US to stop offering sports event contracts in Ohio and to confirm within 14 days, citing the Sixth Circuit's September 25 ruling.
Source
Oct 16, 2026
lawsuit · openPolymarket US sued Ohio officials in federal court after the Casino Control Commission's October 2 order to stop sports contracts. It seeks to block the state from enforcing its gaming law against them.
QCX LLC v. Wilson, No. 2:26-cv-01502 (S.D. Ohio) · source

Change log

Oct 19, 2026
Current statusYes, but contested: Polymarket's sports contracts face an open dispute in Ohio, with no restriction in force. It rests on Ohio Casino Control Commission cease-and-desist letter to PM US Tech (QC Tech LLC) (Oct 2, 2026); QCX LLC v. Wilson, No. 2:26-cv-01502 (S.D. Ohio, filed Oct 16, 2026).
Oct 16, 2026
lawsuit (open)Polymarket US sued Ohio officials in federal court after the Casino Control Commission's October 2 order to stop sports contracts. It seeks to block the state from enforcing its gaming law against them.
Oct 2, 2026
cease and desist (open)Ohio's Casino Control Commission ordered Polymarket US to stop offering sports event contracts in Ohio and to confirm within 14 days, citing the Sixth Circuit's September 25 ruling.

How this compares to Ohio sports betting

Where a state allows sports betting, sportsbooks are licensed and taxed by that state; an event contract on a federal exchange is neither, which is the whole dispute. The Ohio action concerns Polymarket's sports contracts. Whether a state may enforce at all is the question the federal appeals courts have split on. Ohio is in the Sixth Circuit. On September 25, 2026, it held that Kalshi's sports contracts are not swaps and fall under state gaming law (No. 26-3196). Litigation tracker

Common questions

Is Polymarket legal in Ohio?

Yes, but contested: Polymarket's sports contracts face an open dispute in Ohio, with no restriction in force. On October 2, 2026 the Ohio Casino Control Commission ordered Polymarket US (PM US Tech, QC Tech LLC) to stop sports event contracts in Ohio. It called them unlicensed sports gaming and bookmaking, and gave it 14 days to confirm in writing. It relies on the Sixth Circuit's September 25, 2026 ruling that Ohio's sports gaming law applies. Polymarket US sued Ohio officials in federal court on October 16. No court order is in force, and Polymarket US's app listing names only Nevada as closed.

Can I still use Polymarket in Ohio for non-sports markets?

Yes. The Ohio dispute concerns sports contracts only.

Is this legal advice?

No. It summarises public rulings and actions, each cited. For a decision that matters, ask a lawyer licensed in the state.