Washington sports betting in 2026: what Seahawks fans can use

Is sports betting legal in Washington? Only in one place: a tribal casino. Washington allows sports betting at the casinos its tribes run, in person or on an app that works only on casino property, and nowhere else. There is no statewide sportsbook app. Prediction markets, the other way fans put money on a game, are fighting the state in two courts. Here is where things stand for Seahawks fans as of Nov. 6.

How Washington got here

The Legislature passed HB 2638 in 2020, adding sports wagering to the gaming the state's tribes may offer under their compacts. The Washington State Gambling Commission negotiates those compact amendments and oversees the sportsbooks. The law did not open betting to commercial operators, card rooms or racetracks, and it did not authorize statewide mobile betting. Brand-name sportsbooks appear in Washington only as partners running a tribe's book, on that tribe's property.

That makes a Seahawks bet a trip: to a casino sportsbook, or at least onto casino grounds with an app that switches off at the property line.

What changed this year

One law changed the books' menu in 2026. SB 6137, signed by Gov. Bob Ferguson at the end of March and in effect since June 11, lifts the ban on wagering on Washington's own college teams at the tribal books. Player props on college athletes stay off limits, SBC Americas reported. For the NFL it changed nothing: Seahawks games were always on the casino boards, and statewide mobile betting is still not allowed.

Prediction markets: in court on two fronts

The Gambling Commission has said since December 2025 that event contracts are not authorized under state law. The state has taken that position to court twice.

Kalshi. Attorney General Nick Brown sued Kalshi in King County Superior Court in March. In July, Judge John McHale found the state was likely to prove Kalshi was running illegal online gambling, the attorney general's office said, and in August he ordered Kalshi to geofence Washington out of its sports, election and other categories, leaving markets on commodities, economics, finance and climate open, KUOW reported. The Court of Appeals declined to put that order on hold.

Novig. Novig, through its exchange Ludlow Exchange, began offering sports contracts to Washington customers in August and, the same week, sued Brown and the Gambling Commission's leaders in federal court (the Western District of Washington), arguing that federal commodities law leaves the state no room to apply its gambling statutes to a CFTC-designated exchange. On Oct. 19 the state moved to dismiss, pointing to an Aug. 28 Ninth Circuit decision in a Nevada case, RG.org reported. That decision, KalshiEX v. Assad, held that sports event contracts are not swaps and that Nevada may enforce its gaming law against them, Covers reported. Washington sits in the Ninth Circuit, so the ruling carries weight here. The motion to dismiss is noted for the judge's consideration on Nov. 16.

Other exchanges are in the same fight. Robinhood sued the state in federal court in Tacoma in the spring, the Washington State Standard reported, and Crypto.com filed its own suit this summer. Polymarket US was not named in the Kalshi case and was still listed as available in Washington at this review.

What a Seahawks fan can use this week

Novig is a CFTC-designated exchange where you take a position on a game at a price set by other traders. It is live in 47 states, all but Arizona, Michigan and Nevada. That last one matters on Nov. 15, when the Seahawks play at Las Vegas: a fan who travels for the game cannot trade on Novig from Nevada. In Washington, a ruling for the state in Novig's case could change what is available here, and this page will be updated when one comes.

Every Seahawks game is priced on the board, Novig first, alongside the sportsbooks and the other exchanges. The Washington page shows this week's game at the venues a fan in the state can open and carries the date we last checked the law. Prediction markets vs sportsbooks explains how the two kinds of venue arrive at a price, and how to read the Seahawks board works through the numbers.

This site is for readers 21 and older. If gambling stops being fun, call 1-800-GAMBLER.