Court Ruling Blocks Kalshi’s Sports Prediction Markets in Washington

Kalshi Faces Legal Setback in Washington State

A preliminary injunction has been granted by a Washington state judge, effectively blocking Kalshi from offering sports-related prediction markets to residents. This decision marks a significant setback for the federally regulated event-contract platform, which argues that federal commodities law should take precedence over state regulations.

Details of the Court Ruling

On July 20, 2026, King County Superior Court Judge John McHale ruled in favor of Washington’s request, indicating that the state is likely to succeed in its case against Kalshi. The injunction is set to go into effect before August 5, after the court reviews additional submissions from both sides by August 3.

Legal Context

The ruling is part of an ongoing legal debate concerning whether sports event contracts fall under federal commodities law or are subject to state gambling regulations. Kalshi contends that as a Commodity Futures Trading Commission (CFTC)-regulated exchange, its contracts should be governed by federal jurisdiction. However, Washington’s legal stance classifies these sports products as illegal gambling unless authorized at the state level.

Responses and Future Developments

In response to the ruling, Kalshi representatives expressed disappointment, arguing that states lack jurisdiction over prediction markets. They highlighted a Third Circuit ruling that favored federal oversight. Meanwhile, the Washington Attorney General’s Office initially sought to halt Kalshi’s operations and pursue restitution for consumers and civil penalties, citing that labeling sports wagers as event contracts does not exempt them from state laws.

Broader Implications for Prediction Markets

The Washington court’s decision adds to an increasing trend of legal challenges against Kalshi in various states. In June, a Michigan judge temporarily halted Kalshi from offering similar products, creating conflicts between state and federal regulators. States have been mostly winning early court battles regarding prediction markets, with a total of 19 out of 23 court decisions favoring state jurisdiction imposed on these marketplaces.

Continuing Challenges Ahead

Kalshi’s ongoing disputes highlight the complexities in the market as trading activity grows, with a reported $33 billion in monthly trading volume in June. The company is continuing to explore avenues for compliance, including discussions with the court regarding how to protect users in Washington while addressing its legal challenges.

Conclusion

The preliminary injunction does not immediately close down Kalshi’s operations in Washington, but it does mark an important chapter in the evolving legal landscape of prediction markets. As the case progresses, the question of whether federal or state laws will govern these markets remains unresolved.