Washington Sports Betting
Sports betting is legal in Washington, but only in person at tribal casinos. A 2020 law lets tribes offer sports wagering under their gaming compacts, and you must be on the casino premises to bet, even on a mobile app. Online sportsbooks and online casinos are not legal. This guide covers where you can bet in Washington and the status of prediction markets.
Washington Sportsbooks and Prediction Markets
Every sportsbook, prediction market and sweepstakes book that accepts players here, with how each is regulated and whether it limits winning bettors.
ProphetX
BroThrow
Polymarket USStatuses come from our sportsbook records and the regulator's list. Check the regulator before depositing if anything has changed.
Washington Sportsbook Promos
Listed in the order to claim them. The order changes with your starting bankroll.
Approximate value is what each offer converts to when you bet both sides, at the odds available when we checked. Actual returns depend on offer availability, market conditions, and individual execution.
Notes: Signup with promo code "DHO".
Notes: bet105 is an offshore crypto only sportsbook.
Notes: If your first bet on BroThrow loses they will reimburse you up to $10.
OzoonNotes: 5x Rollover requirement. Any wagers using deposited funds or bonus funds prior to bonus completion are subject to a max of 50% of deposited amount.
Sportsbetting.agNotes: Verify the promo code for the 50% deposit match is applied before making your first deposit.
Sportsbetting.ag has restrictions on using Free Bets that reduces their value to ~50%. Learn more in our Sportsbetting.ag review.
- Football, Basketball, Soccer & Tennis Free Bets can only be used on spreads and totals to max odds of +150.
- Baseball and Hockey Free Bets can only be used on Moneylines and Totals to max odds of +150.
- Baseball and Hockey Free Bets are restricted to a maximum wager of $500 per event.
- MMA Free Bets can only be used on Moneylines to max odds of -200 for the favorite and +150 for the underdog.
BetOnlineNotes: Verify the promo code for the 50% deposit match is applied before making your first deposit.
BetOnline has restrictions on using Free Bets that reduces their value to ~50%. Learn more in our BetOnline review.
- Football, Basketball, Soccer & Tennis Free Bets can only be used on spreads and totals to max odds of +150.
- Baseball and Hockey Free Bets can only be used on Moneylines and Totals to max odds of +150.
- Baseball and Hockey Free Bets are restricted to a maximum wager of $500 per event.
- MMA Free Bets can only be used on Moneylines to max odds of -200 for the favorite and +150 for the underdog.
BetUSNotes: 125% Sign-Up Bonus up to $2,000 on your first, second and third deposits.
- Minimum deposit: $100
- 100% Sports Bonus – up to $2,000
- 14X Rollover on Sports
- Up to $1,500 on crypto deposits, 18X Rollover on Sports
- 25% Casino Bonus – up to $625
- 30X Rollover on Casino Games for Release and Cash out.
- Max cash out for Casino Bonus is $2,500
- 7-Days Expiry
Lucky RebelNotes: 10x Rollover requirement. Any wagers using deposited funds or bonus funds prior to bonus completion are subject to a max of 50% of deposited amount.
BovadaNotes: The 75% match on a $1,000 deposit is available when using crypto to deposit, and a promo code is required. The rollover is 5x on sports.
MyBookieNotes: 10x rollover requirement on the deposit and bonus results in a total wager requirement of $30,000.
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Notes: Polymarket.com is a prediction market, not a traditional sportsbook.
Notes: Polymarket US is a CFTC regulated prediction market, not a traditional sportsbook.
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Prediction Markets in Washington
Status: blocked by court order. Last verified October 2, 2026.
Prediction markets such as Kalshi and Polymarket US are regulated federally by the Commodity Futures Trading Commission. Washington treats sports and other event contracts as illegal gambling. On March 27, 2026, Attorney General Nick Brown sued Kalshi in state court. Attorney General news release
On August 13, 2026, a King County Superior Court judge ordered Kalshi to stop offering markets on sports, elections, politics, entertainment, culture, tech, science and public figure "mentions" to Washington users, and to stop advertising them in the state. The Washington Court of Appeals denied Kalshi's request to pause the order. Read the announcement
Prediction markets matter for matched betting because they do not limit winning traders. Sports contracts on Kalshi are not available in Washington under this order. Check each app for current availability before you deposit.
This section is for informational and educational purposes only. It does not constitute legal advice.
Online Casinos in Washington
Online casinos are not legal in Washington. The Washington State Gambling Commission says state law prohibits online gambling, and that knowingly sending or receiving gambling information over the internet is a class C felony. Gambling Commission online gambling FAQ
Casino games are offered in person at tribal casinos.
Washington Sports Betting Law and Timeline
- March 25, 2020: Governor Jay Inslee signed House Bill 2638, which allows tribes to offer sports wagering on Indian lands under amended tribal-state gaming compacts. Bill history, RCW 9.46.0364
- March 29, 2021: Gambling Commission rules for sports wagering pre-licensing investigations took effect. Sports wagering is regulated by the Washington State Gambling Commission. Commission history page
- September 19, 2025: The Gambling Commission issued a second cease and desist notice to Bovada.lv for operating as an unlicensed sportsbook in Washington. Commission announcement
- March 27, 2026: Attorney General Nick Brown sued Kalshi, saying its prediction markets are illegal gambling under the Washington Gambling Act and Consumer Protection Act. Attorney General news release
- March 30, 2026: The governor signed Senate Bill 6137, which adds esports and bets on part of a sporting event. Bets must still be placed on tribal casino premises. The law took effect June 11, 2026. Bill history, Session law
- July 20, 2026: A King County Superior Court judge granted a preliminary injunction, finding Kalshi likely violated state gambling and consumer protection laws. Attorney General news release
- August 13, 2026: The court ordered Kalshi to stop offering sports, elections, politics, entertainment and several other markets to Washington users, with geofencing deadlines of August 19 and September 2, 2026. The Court of Appeals denied Kalshi's request for a stay. Attorney General news release
Offshore and unlicensed betting
Washington law makes it a class C felony to knowingly transmit or receive gambling information by telephone, the internet or similar means. Sports wagering at tribal casinos under RCW 9.46.0364 is exempt when it follows state law and the tribe's compact. RCW 9.46.240
The statute applies to bettors as well as operators. The Gambling Commission says it is a class C felony to place bets online, and in September 2025 it stated that Bovada and its Washington participants are violating RCW 9.46.240. Online gambling FAQ, Bovada cease and desist notice
This section is for informational and educational purposes only. It does not constitute legal advice. Availability of sportsbooks and promotions varies by state and may change. Verify current offerings before signing up.
Washington Sports Betting FAQ
Is sports betting legal in Washington?
Yes, in person only. Tribes may offer sports wagering at their casinos under amended gaming compacts. Online sportsbooks that take bets from anywhere in the state are not legal.
Can you bet on sports on your phone in Washington?
Only while you are physically on the premises of a tribal casino that offers mobile wagering. Bets must be placed and accepted at the tribe's gaming facility.
Can you bet on Washington college teams?
No. Bets on collegiate events involving Washington colleges are not allowed.
Is Kalshi legal in Washington?
Not for most markets. On August 13, 2026, a Washington court ordered Kalshi to stop offering sports, election and several other markets to Washington users. The Washington Attorney General says these contracts are illegal gambling.
Is online gambling legal in Washington?
No. The Washington State Gambling Commission says state law prohibits online gambling, and knowingly sending or receiving gambling information online is a class C felony.
Is it legal to use offshore sportsbooks in Washington?
No. RCW 9.46.240 makes it a class C felony to knowingly transmit or receive gambling information over the internet, and the only exemption is for authorized activity such as tribal sports wagering. The Gambling Commission has said bettors using Bovada violate this law.
Before You Start
Nearby State Guides
Sign-up offers only work where you are physically located. If you spend time across a state line, each state's guide lists what you can claim there.
