(Bloomberg) — The National Hockey League has struck multiyear deals with Kalshi and Polymarket, becoming the first major American sports league to agree to work with the prediction market platforms.

The move signals a major step toward mainstream acceptance for prediction markets, which have long operated in a gray zone between financial trading and gambling. Kalshi and Polymarket let users buy and sell contracts tied to the outcome of events — including sports results — under the oversight of the US Commodity Futures Trading Commission, allowing it to operate in all 50 states rather than just those that have legalized sport betting.

The startups now have the right to use NHL logos and trademarks on their platforms, the league said in a statement Wednesday. Both companies will benefit fr

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