Nevada sues Polymarket over alleged unlicensed sports wagering

Summary

Nevada’s Gaming Control Board has filed a civil enforcement lawsuit in Carson City District Court seeking a declaration and an injunction to stop Polymarket’s sports-event contracts in the state. Regulators allege those contracts amount to unlicensed wagering that breaches Nevada gaming laws intended to protect the integrity and economic stability of the state’s gambling industry.

The action represents a shift from prior cease-and-desist orders — which the board says were ignored — to direct litigation after Polymarket re-entered the US following approval from the Commodity Futures Trading Commission (CFTC). Legal observers expect Polymarket to try to move the case to federal court on the basis that prediction markets fall under federal jurisdiction. Nevada, however, has a track record of defending state authority successfully in similar disputes under Chief Judge Andrew Gordon.

This suit is the first direct Nevada challenge against Polymarket and follows Massachusetts’ state-court action against Kalshi. A ruling in Nevada’s favour could encourage other states to pursue litigation rather than regulatory warnings, potentially tightening compliance requirements for prediction-market operators offering sports-related contracts.

Key Points

Nevada Gaming Control Board filed a civil enforcement lawsuit against Polymarket alleging unlicensed sports wagering.
The board seeks a court declaration and an injunction to halt Polymarket’s sports-event contracts within Nevada.
Regulators say previous cease-and-desist orders were ineffective, prompting the shift to litigation.
Polymarket re-entered the US after CFTC approval; it is expected to seek federal removal of the case.
Nevada has previously defended state regulatory authority successfully in similar disputes.
The case follows Massachusetts’ action against Kalshi and could prompt more state lawsuits and stricter compliance for prediction markets.

Why should I read this?

Quick and blunt: if you care about regulated betting, prediction markets or market access in the US, this matters. Nevada moving from warnings to a lawsuit could reshape how states police sports-related prediction contracts — and that could mean new legal headaches and compliance costs for operators and partners.