Horse racing in Washington is regulated by the Washington Horse Racing Commission, with Emerald Downs in Auburn serving as the state's flagship live racing venue. Pari-mutuel wagering has been legal for decades, and the state permits advance deposit wagering through a limited set of approved providers. TVG, TwinSpires, and other national ADW platforms must secure Washington Horse Racing Commission approval before accepting deposits from state residents. Unlike sports betting, horse racing wagers can be placed online statewide rather than only on tribal property, making ADW the most accessible form of legal online wagering in Washington. Live racing meets continue at Emerald Downs each summer, with simulcast wagering available year-round at approved off-track locations and through licensed ADW operators.
Regulatory Body: Washington Horse Racing Commission
There are currently no horse racing betting sites platforms operating in Washington. This market is not yet regulated in the state.
Washington permits in-person pari-mutuel wagering at licensed racetracks (Emerald Downs) under the Washington Horse Racing Commission, but online advance deposit wagering is not legal for state residents. RCW 67.16 governs horse racing and does not authorize ADW apps.
The Washington State Gambling Commission regulates all other gambling, and tribal casinos under IGRA compacts offer in-person gaming only. Any online ADW operator accepting WA residents does so outside state law.
Verify operators through the Washington Horse Racing Commission.
These markets are available in Washington with active platforms:
Gambling laws vary by state. Always check your local regulations before participating in online gambling. If you or someone you know has a gambling problem, call 1-800-522-4700 (National Council on Problem Gambling) for free, confidential help.
Online horse racing platforms, known as Advance Deposit Wagering (ADW) accounts, allow you to fund an account and bet on races at tracks across the US and internationally without being physically present. Bets are processed into the official pari-mutuel pools at each track, meaning your odds are determined by the total money wagered on each outcome — not by a fixed line set by a bookmaker. This also means the platform you use does not affect your payout odds, since all ADWs pool into the same track pools. Where platforms differ is in coverage breadth, streaming quality, and rewards programs.
Straight bets are the simplest: Win (your horse finishes first), Place (first or second), and Show (first, second, or third). Exotic bets involve multiple horses and offer higher payouts. An Exacta requires picking the top two finishers in order; a Trifecta adds a third; a Superfecta requires the top four. Multi-race bets like the Pick 3, Pick 4, and Pick 5 require selecting winners of consecutive races. Box and wheel bets let you cover multiple combinations within an exotic, increasing your cost but also your chances.
Live streaming coverage is one of the most important features for active horseplayers: the ability to watch races you are betting on is fundamental to the experience. Confirm which tracks a platform streams before depositing — some ADWs have gaps in their streaming agreements. Rebate programs vary significantly: platforms that return a percentage of your handle are materially better for high-volume players. Evaluate the quality of past performance data included — detailed speed figures, pace data, and trainer/jockey statistics save the cost of third-party handicapping subscriptions.
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Gambling Problem? Call 1-800-547-6133 (Washington) or 1-800-GAMBLER.