Availability · Washington
Are prediction markets legal in Washington?
Mostly not. Washington’s Gambling Commission says event-based contract markets are not authorised there, and a King County court order bars Kalshi’s sports, politics, entertainment and several other categories. Robinhood and OG have agreements with the state while their federal cases are stayed. Sports betting is legal only at tribal casinos.
Of the 26 platforms we review, 6 are open in Washington, 6 with restrictions and 11 not at all; for 3 the terms do not say. Sports betting in Washington: legal only at tribal casinos, under tribal-state compacts (wsgc.wa.gov).
Not legal advice. Eligibility usually follows where you are when you trade, and a platform can refuse an individual account. Checked 29 September 2026.
What Washington has done 8
stipulated order (enforcement forbearance)Crypto.com Prediction Markets
US District Court, W.D. Wash. (NADEX d/b/a OG v. Brown, 2:26-cv-02579). OG/NADEX sued on 22 Jul 2026. The AG and WSGC stipulated not to enforce state law against OG's DCM event-contract trading, and the case is stayed pending the related Ninth Circuit appeals (stipulation filed 18 Aug).
preliminary injunction (final order on terms)Kalshi
King County Superior Court. The order bars sports, elections, politics, entertainment, culture, tech & science, and mentions contracts, with an IP/residency geofence by 19 Aug and a multi-source geofence by 2 Sep. Per the AG, the WA Court of Appeals denied Kalshi a stay.
lawsuit (platform v. state)Novig
Ludlow Exchange LLC (Novig), federal suit v. AG Brown and WSGC. Novig's exchange filed for declaratory and injunctive relief in W.D. Wash. (3:26-cv-05888).
preliminary injunctionKalshi
King County Superior Court. The court found Kalshi likely violated the Gambling Act and CPA and granted a PI; the final terms were to follow (release dated 21 Jul 2026).
stipulated order (enforcement forbearance)Robinhood
US District Court, W.D. Wash. (Robinhood Derivatives v. Griffin, 3:26-cv-05311). Robinhood sued the WSGC and the AG on 30 Mar 2026. Under a stipulated order, the state will not bring certain enforcement actions over Robinhood's trading of DCM event contracts, and the case is stayed until the Ninth Circuit rules.
remand orderKalshi
US District Court, W.D. Wash. (Judge Coughenour). Kalshi's removal of the AG case was undone by remand to King County Superior Court. The Ninth Circuit denied a stay pending appeal on 21 May 2026.
lawsuitKalshi
Washington Attorney General (Nick Brown). The AG sued Kalshi under the Gambling Act and the Consumer Protection Act in King County Superior Court.
regulatory guidance
Washington State Gambling Commission. WSGC guidance says offering or taking part in event-based contract markets is not authorized in Washington. It is not aimed at a named platform.
Available 6
FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.
Clients of Interactive Brokers LLC aged 21+ are eligible for event/forecast contracts; ForecastEx contracts on US election results are limited to eligible US residents.
Prediction Trading (and Sports Event Trading) is a CFTC-regulated feature of the Crypto.com App, offered through Crypto.com | Derivatives North America. The help centre says it is available in the US only.
The Terms and Conditions limit participation to people aged 18 or older who are U.S. Persons. They name no US state as excluded. PredictIt runs under CFTC no-action relief.
DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.
“Novig is available nationwide, except in Arizona, Nevada, and Michigan.” Eligibility is based on physical location at the time of trading, and users must be 21 or older.
Available with restrictions 6
A King County Superior Court order requires Kalshi to stop offering sports, elections, politics, entertainment, culture, tech and science, and mentions contracts in Washington (Washington Attorney General, 13 August 2026). Other contracts remain available.
The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.
These states and DC are ineligible for Prize Drawings, so residents there get play-money (mana) trading only.
Listed in the Terms (updated 24 Jan 2025) among countries whose residents may not use Real-Money Services. Play-money (Ooms) markets stay open, and the app tells users from Restricted Jurisdictions they can still bet play money.
QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board). Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.
ProphetX says it is “available nationwide” but publishes no excluded-state list; its help centre says access “is restricted from certain locations and IP addresses”. Connecticut reportedly ordered it to stop offering sports contracts to residents (September 2026); the order could not be read on the regulator’s site.
Not available 11
United States named in the Restricted Jurisdictions list; trading not permitted. Terms of Use (no date shown), Restricted Jurisdictions clause.
USA named as a restricted jurisdiction; trading not permitted, content features only. Terms of Service last updated November 18, 2025.
Contracts and services are not offered to US Persons. Terms of Use (no date shown).
Terms of Service (no date shown) state the Services are not available to US Persons, including those accessing from US territory.
United States is named on Probable's Restricted Jurisdictions page (no date shown); access and use prohibited for residents, citizens or persons located there.
Terms (updated 15 Jun 2026) s.1.6 treats US residents, US-located persons and US entities as Restricted Persons barred from the whole interface, including HIP-4 outcome markets.
The Terms say Insight does not currently allow trading from within the United States.
Platform is not available for trading to users from the USA. Terms of Service last updated September 15, 2026, section 1 Eligibility.
United States of America is a Prohibited Territory; trading in Supported Contracts not permitted. Terms of Use updated January 13, 2026, section 2 Prohibited Territories.
United States named as a Restricted Jurisdiction; Restricted Persons must not use the Services. Terms & Conditions last updated September 25, 2025 (embedded at xmarket.app/terms), section 3.2.
Terms (last updated 2025) say Zeitgeist does not accept clients from the United States; browsers from these Regulated Jurisdictions are prohibited from using the site.
Not verified 3
Prediction markets in Washington: common questions
- Are prediction markets legal in Washington?
- Mostly not. Washington’s Gambling Commission says event-based contract markets are not authorised there, and a King County court order bars Kalshi’s sports, politics, entertainment and several other categories. Robinhood and OG have agreements with the state while their federal cases are stayed. Sports betting is legal only at tribal casinos.
- Can I use Kalshi in Washington?
- Partly. Kalshi is open in Washington with restrictions. A King County Superior Court order requires Kalshi to stop offering sports, elections, politics, entertainment, culture, tech and science, and mentions contracts in Washington (Washington Attorney General, 13 August 2026). Other contracts remain available.
- Can I use Polymarket in Washington?
- Partly. Polymarket is open in Washington with restrictions. The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.
- Can I use FanDuel Predicts in Washington?
- Yes — our records show FanDuel Predicts open in Washington. FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.
- Can I use Interactive Brokers ForecastTrader in Washington?
- Yes — our records show Interactive Brokers ForecastTrader open in Washington. Clients of Interactive Brokers LLC aged 21+ are eligible for event/forecast contracts; ForecastEx contracts on US election results are limited to eligible US residents.
- Can I use Crypto.com Prediction Markets in Washington?
- Yes — our records show Crypto.com Prediction Markets open in Washington. Prediction Trading (and Sports Event Trading) is a CFTC-regulated feature of the Crypto.com App, offered through Crypto.com | Derivatives North America. The help centre says it is available in the US only.