NFL Demands Kalshi and Polymarket Ban Sixteen Event Types Citing Manipulation Risks
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NFL Demands Kalshi and Polymarket Ban Sixteen Event Types Citing Manipulation Risks

30 March, 2026.Sports.10 sources

NFL sent letters to Kalshi and Polymarket urging bans on manipulation-prone contracts, including officiating. Targets contracts easily manipulated or determined in advance to curb insider-trading risk and preserve integrity.

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NFL Sends Demand Letter

The letter states they must remove sixteen categories of markets that the league deems "objectionable bets."

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This reflects the league's growing engagement amid $1.6 billion in Super Bowl-related volume.

Sixteen Objectionable Categories

The league outlined sixteen specific categories of contracts.

These include broadcast mention markets, player signings, coach firings, and more.

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The NFL also objected to play-level prop bets controlled by a single player.

CFTC to Defer to Leagues

The demand letter follows weeks of engagement between the NFL and the CFTC.

The CFTC considers the league’s concerns and may prohibit the contract from being listed

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The CFTC will defer to leagues on what markets are permissible.

CFTC Chair Selig told ESPN they will afford a lot of deference to the leagues.

Kalshi and Polymarket Respond

Kalshi announced plans to remove player injury markets.

Polymarket said it reacts quickly when problems are encountered.

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They will delay opening NFL Draft contracts until after the NFL asked for a stop.