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Is Polymarket legal in Wyoming?

Status as of September 25, 2026 · every line has its source and date · not legal advice

Status at a glance

Kalshi and Polymarket US are reported live in Wyoming, including sports. No Wyoming enforcement action was found; the Attorney General joined the two 2026 Sixth Circuit multistate amicus briefs against Kalshi (the Tennessee and Ohio appeals) and the states' brief in Crypto.com's Ninth Circuit appeal, but not the earlier multistate briefs or the 41-attorney-general comment letter reviewed.

What has happened in Wyoming

Good to know

• Wyoming's Attorney General also joined the states' amicus brief supporting Nevada in Crypto.com's Ninth Circuit appeal (North American Derivatives Exchange, Inc. v. Nevada, DktEntry 76.1 in No. 25-7187, filed 2026-03-10; the cover lists the coordinated appeals Nos. 25-7187, 25-7516 (Kalshi) and 25-7831). Brief of Amici Curiae of Ohio, New Jersey, 37 Other States, and the District of Columbia Supporting Appellees, North American Derivatives Exchange, Inc. v. Nevada, No. 25-7187 (9th Cir.), DktEntry 76.1 (PDF hosted by the Idaho Attorney General)
• Wyoming does not appear among the signers of the 41-attorney-general CFTC comment letter (2026-04-30) or of the multistate briefs filed in 2025 and January and April 2026. Comment letter of Ohio, Nevada, New Jersey, New York, Tennessee, Utah, 34 other States and the District of Columbia to the CFTC on prediction markets, Docket No. 2026-05105 (PDF via the New Jersey Attorney General)
• A CourtListener search of the District of Wyoming found no Kalshi, Polymarket or QCX case. CourtListener RECAP docket search (Kalshi, KalshiEX, Polymarket, QCX) in wyd
• Wyoming is not among the nine states the CFTC has sued over prediction markets (AZ, CT, IL, KY, MN, NM, NY, RI, WI). CFTC Exercises Emergency Authority to Ensure Market Stability (Release 9281-26)
• The RotoWire prediction-markets legal timeline has no Wyoming entries. Prediction Markets Legal Timeline 2026: States, Courts & Federal Regulation (RotoWire) (news)
• The Covers prediction-markets timeline has no Wyoming entries. Prediction markets timeline (Covers) (news)

State regulator: Wyoming Gaming Commission. Wyoming's gaming regulator, which oversees pari-mutuel and online sports wagering; its homepage (checked 2026-09-25) shows no statement on prediction markets.

The federal picture

Polymarket US operates as a CFTC-designated contract market after Polymarket bought the CFTC-licensed exchange QCEX; Kalshi has been a designated contract market since 2020. Whether states may still apply their gambling laws to sports event contracts is being decided in the courts:

• 2026-09-25 Pending appellate decisions that could change several states' status: Sixth Circuit (Kalshi v. Ohio, No. 26-3196, and Kalshi v. Tennessee, No. 26-5235; argued 2026-07-30), Fourth Circuit (Kalshi v. Maryland, No. 25-1892; argued 2026-05-07), Second Circuit (Kalshi's New York and Connecticut appeals, Nos. 26-1835 and 26-2239, heard in tandem), Seventh Circuit (CFTC and Kalshi appeals from the Wisconsin injunction denial, No. 26-2636 et al.), Tenth Circuit (Kalshi v. Utah, No. 26-4100). No decision in any of these appeared in the court records checked for this file (CourtListener; indexes can lag PACER by a few days). CourtListener dockets cited in the Ohio, Tennessee, Maryland, New York, Connecticut, Wisconsin and Utah entries
• 2026-09-16 Ninth Circuit (Blue Lake Rancheria v. Kalshi, Inc., No. 25-7504; Murguia, McKeown, Paez; opinion by Judge McKeown) affirmed in part and reversed in part the denial of two California tribes' preliminary-injunction motion, holding the tribes likely to succeed in showing Kalshi's sports event contracts entered from tribal lands are class III gaming offered in violation of IGRA and their gaming procedures; the case was remanded for the remaining injunction factors, so no injunction had issued as of the last docket entry checked. Blue Lake Rancheria v. Kalshi, Inc., No. 25-7504 (9th Cir. Sept. 16, 2026) - published opinion (PDF)
• 2026-09-09 Kalshi petitioned for panel rehearing and rehearing en banc of the Ninth Circuit's 2026-08-28 Nevada decision (KalshiEX, LLC v. Assad, No. 25-7516); Montana's 2026-09-17 enforcement pause is tied to the outcome of that request. KalshiEX, LLC v. Assad, No. 25-7516 (9th Cir.) docket, entry 206 (CourtListener); Joint Stipulation of Dismissal, KalshiEX LLC v. Knudsen (D. Mont.), Doc. 35
• 2026-09-08 Southern District of Iowa (KalshiEX LLC v. Bird, No. 4:26-cv-00109) denied Kalshi a preliminary injunction against Iowa's Attorney General and Racing and Gaming Commission, finding Kalshi unlikely to succeed on preemption; Kalshi appealed to the Eighth Circuit (No. 26-2874, docketed 2026-09-17), a fifth federal circuit now hearing the question. KalshiEX LLC v. Bird, No. 4:26-cv-00109 (S.D. Iowa), Order Denying Motion for Preliminary Injunction (Doc. 57)
• 2026-09-02 New Jersey petitioned the US Supreme Court for certiorari in Flaherty v. KalshiEX, LLC (No. 26-299, docketed 2026-09-08); Kalshi's response deadline was extended to 2026-11-09; an amicus brief was filed 2026-09-22 by the National Council of Legislators from Gaming States. Supreme Court docket No. 26-299

How sure is this page? Confidence: medium. Availability rests on news roundups (CBS Sports and Covers, 2026-09-24; FOX Sports, 2026-08-06) that agree, and the absence of a state action rests on the regulator's homepage, court-record searches and two legal timelines rather than a statement by a state agency. Researched September 25, 2026; court cases in several states can change the status at any time.

Related: all states · Polymarket US · polymarket.com and the United States · is Kalshi legal in Wyoming? (Kalshi View)

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Frequently asked questions

Is Polymarket legal in Wyoming?

As of September 25, 2026: polymarket.com does not let US users open new positions, including in Wyoming. Polymarket US, the CFTC-regulated app, is reported available in Wyoming according to CBS Sports (September 24, 2026). 2 involving Kalshi are listed below with their sources. This is a dated summary of public sources, not legal advice.

Can I use polymarket.com from Wyoming?

Not for new trades. Polymarket's help center lists the United States as a blocked country and its developer documentation lists it as close-only (existing positions can be closed, new ones cannot be opened); US residents are pointed to Polymarket US.

Is Kalshi available in Wyoming?

Available; sports contracts available, according to the sources on this page as of September 25, 2026.

Polymarket View is independent and not affiliated with Polymarket or Kalshi. This page summarises public sources; it is not legal advice. Polymarket odds today