NBA strikes deals with Kalshi and Polymarket, with eye on integrity and regulations

The NBA announced Monday in Miami that it has struck deals making Kalshi and Polymarket its preferred prediction markets, along with an agreement with a federal agency that regulates those exchanges. The agreements are intended to provide significant integrity protections for NBA-related markets, including limits on what can be offered, transparency about suspicious user patterns, and a ban on league and team personnel trading on league events. The prediction markets will also have information-sharing obligations for investigations and suspicious trading. The league said it already has similar guardrails with its sportsbook partners, and has cited cases where those systems flagged irregular betting patterns. The NBA is also expanding its agreements with official betting partners such as DraftKings to include their prediction-market offerings.

Left-leaning NBC News leads with the integrity and regulation angle. It features NBA head of media distribution and partnerships Scott Kaufman-Ross, who argued that regulated markets allow more transparency and monitoring than unregulated ones. The alternative AP report opens with nearly identical facts and wording, so it largely matches the left coverage. The right-leaning Washington Times excerpt uses a near-identical headline and reports the Kalshi and Polymarket deals and the federal agency agreement. Both sides agree on the core facts, but the Times excerpt does not show whether it includes the integrity rules, the league's comments or the DraftKings expansion, so no further difference in emphasis can be confirmed.