Five major US leagues ask 35 states to ban bettors who threaten athletes

The letter arrived at regulators in 35 states and the District of Columbia carrying five signatures: the NFL, MLB, NBA, NHL, and MLS, along with their respective player associations. The ask is permanent — a lifetime ban from licensed sportsbooks for any bettor who abusively harasses or threatens an athlete, coach, official, or family member over a betting outcome.

That is not a fine. It is not a suspension. It is exclusion from the legal market, forever, as a condition of the sportsbook keeping its state licence.

The joint letter names Ohio, West Virginia, Louisiana, and Wyoming as states that already have some version of this in place. The proposal would extend the framework and, critically, make exclusions portable — a ban in one state recognised in others. That cross-state recognition is where the real enforcement weight sits. Without it, a banned bettor moves to the next app. With it, the legal market closes.

I have watched sports leagues make regulatory asks before. Most are aspirational documents, written to reassure sponsors and generate a press cycle. This one reads differently, and the reason is structural. The leagues are asking states to tie enforcement to licence conditions. That gives regulators a mechanism they already hold. No new legislation required in states that already condition licences on harm-prevention measures. The ask is to use the tool that exists, not to build a new one.

The Sports Betting Alliance endorsed the proposal. That matters more than it might appear. The SBA represents the major sportsbook operators, and their support means the industry is not fighting the ask. Operators have more to lose from a regulatory backlash against bettor conduct than from a tighter exclusion regime. The calculation is straightforward: absorbing some account closures is cheaper than absorbing a legislative rollback.

The NCAA did not sign. The letter still covers amateur athletes. That gap — where the protection extends further than the signatories — will create an implementation question regulators will have to answer without league cooperation on the amateur side.

What the proposal does not address is prediction markets. The letter is written to state sportsbook regulators, against state-licensed operators. Prediction markets operating under federal CFTC jurisdiction sit outside that framework entirely. If a bettor threatening a player is doing so because of a contract on Kalshi or Polymarket, the state exclusion mechanism has no reach. The leagues know this. Whether they pursue a parallel path through federal channels is not on the public record, but the gap in the current proposal is visible.