Kalshi contract categories barred in Washington: 7

A King County judge ordered Kalshi on 12 August 2026 to stop offering sports, election, politics, culture, tech and mentions contracts in Washington. What the order covers, what it leaves out, and where Polymarket US and polymarket.com stand. Not for most of what Kalshi lists. A preliminary injunction is not a final judgment.

- Categories the order leaves out: 4
- Deadline for Kalshi's multi-source geofence: 2 Sep 2026
- Washington court actions naming Polymarket: None found

Sources checked 30 October 2026.

Study: https://vultax.com/research/prediction-market-legality/united-states/washington
Markdown: https://vultax.com/research/prediction-market-legality/united-states/washington.md
Data: https://vultax.com/research/prediction-market-legality/united-states/washington/data.json
Share card: https://vultax.com/og/article/research/prediction-market-legality-united-states-washington
Live screen: https://app.vultax.com/predictions

Vultax Research Team, Is Kalshi Legal in Washington State? The Court Order, and Polymarket, 2026-10-30, https://vultax.com/research/prediction-market-legality/united-states/washington