Polymarket US to halt Michigan sports contracts by November 25

The agreement, approved by a federal court, follows similar deals with Coinbase and Robinhood and a preliminary injunction against Kalshi.

Key takeaways:

• Polymarket US agreed with the Michigan Gaming Control Board to stop offering new sports-related event contracts to Michigan customers and close remaining open positions by 25 November 2026.
• The stipulation was approved by the US District Court for the Western District of Michigan.
• Customers can close positions voluntarily before the deadline, and Polymarket US must close any still open at the end of the day on 25 November.

U.S.- Polymarket US has agreed to stop offering new sports-related event contracts to customers in Michigan and close any remaining open positions held by state residents by November 25 2026. The agreement with the Michigan Gaming Control Board (MGCB) allows the company to avoid state enforcement action as long as it complies with the terms.

The stipulation was approved by the US District Court for the Western District of Michigan. Under its terms, customers can close their positions voluntarily before the deadline, and any positions still open at the end of the day on November 25 must be closed by Polymarket US.

“Polymarket joining Kalshi, Robinhood, and Coinbase in stepping back from these unlicensed sports contracts shows that Michigan’s approach is working,” said MGCB Executive Director Henry Williams. “We expect all operators to respect Michigan’s regulatory framework. If you want to offer sports wagering to Michigan residents, you need a Michigan licence.”

The agreement adds Polymarket US to a list of operators that have agreed to stop offering sports-related event contracts in Michigan or have been subject to court action. The state has secured similar agreements with Coinbase Financial Markets and Robinhood Derivatives, as well as a preliminary injunction against KalshiEX.

Michigan Attorney General Dana Nessel said the state was applying its gambling laws to sports-related contracts offered without a state licence. “One by one, from Kalshi to Robinhood and Coinbase, and this latest agreement with Polymarket, we’re holding the national sports betting industry accountable to Michigan law,” said Nessel. “Alongside the MGCB, we’re protecting Michigan residents by ensuring gaming in our state occurs in licensed and regulated ways, and under the protections and safeguards afforded by the law.”

Frequently asked questions (FAQs)

• Which other companies have taken similar steps in Michigan? Coinbase Financial Markets and Robinhood Derivatives reached similar agreements, and the state obtained a preliminary injunction against KalshiEX.
• Why does Michigan require a licence? The MGCB and Attorney General Dana Nessel say Michigan’s gambling laws apply to sports-related contracts offered without a state licence, and that anyone offering sports wagering to Michigan residents needs a Michigan licence.