Supreme Court petitions on sports event contracts: 3 Polymarket US runs on a CFTC-registered exchange and names no restricted state; polymarket.com is closed to all Americans. Two of three federal appeals courts have sided with the states, and three Supreme Court petitions are pending. State by state, with California and Texas, to 27 September 2026. Two different exchanges carry the Polymarket name. - Federal appeals courts that have ruled for the states: 2 of 3 - CFTC final rule on event contracts: None yet - Polymarket's 2022 CFTC penalty: $1.4M Observed 2022-01 to 2026-09. Study: https://vultax.com/research/is-polymarket-legal-in-the-us-2026 Markdown: https://vultax.com/research/is-polymarket-legal-in-the-us-2026.md Data: https://vultax.com/research/is-polymarket-legal-in-the-us-2026/data.json Share card: https://vultax.com/og/article/research/is-polymarket-legal-in-the-us-2026 Live screen: https://app.vultax.com/predictions Vultax Research Team, Is Polymarket Legal in the US? Where Prediction Markets Stand in 2026, 2026-10-27, https://vultax.com/research/is-polymarket-legal-in-the-us-2026