Sports betting in Washington.
Washington doesn't have a full online sportsbook market. Here's the current status, and the regulated alternatives available today.
Prediction markets in Washington
CFTC-regulated event exchanges: not sportsbooks, but a legal way to trade sports outcomes in most states. State challenges are ongoing; availability can change quickly.
Common questions
Is online sports betting legal in Washington?
Washington allows sports betting only at tribal casinos — on-premises apps, no statewide mobile.
Which sportsbooks operate in Washington?
No traditional sportsbooks. Prediction markets Kalshi and Polymarket currently accept Washington residents under federal CFTC oversight.
Does Big Mike take bets?
No. Big Mike is an analysis service: the engine compares prices across books against no-vig fair value and texts you the mispriced lines. You place bets at whichever operator you choose.
Some links on this page are partner links, described in our Terms of Use. Availability verified November 2026 and changes monthly; confirm in the app. 21+, where legal. Gambling problem? Call 1-800-GAMBLER.
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