Ninth Circuit Blocks Sports Contracts in Prediction Markets
A unanimous appellate ruling and Kalshi's MLB moves shake up prediction market operators in August 2026.
The U.S. Court of Appeals for the Ninth Circuit issued a unanimous 3-0 ruling this week against sports event contracts, dealing a significant blow to prediction markets that had been expanding into sports betting territory — while Kalshi's MLB activity and a dispute with the New York Times added further turbulence to the sector.
Why It Matters
The Ninth Circuit's 3-0 decision carries immediate weight for any prediction market operator eyeing sports contracts as a growth avenue, as of August 2026 (SBC Americas). A unanimous appellate ruling is difficult to overturn quickly and signals that courts remain skeptical of the legal framing prediction markets have used to distinguish themselves from regulated sports betting. For platforms like Kalshi, which has been actively pursuing MLB-related markets, the ruling creates direct operational uncertainty. Operators and their legal teams will now need to reassess whether existing product lines survive scrutiny under the appellate standard.
Context
Prediction markets have spent the past several years arguing they operate as financial instruments rather than sports wagers, a distinction that U.S. regulators and now at least one federal appeals court have challenged. Kalshi's push into baseball markets and its public dispute with the New York Times — details of which remain partial in available reporting — illustrate how aggressively these platforms have sought mainstream legitimacy. The sector sits at a crossroads between commodity trading law, state gambling statutes, and First Amendment-adjacent editorial disputes.
What's Next
Watch for Kalshi or peer platforms to signal whether they will seek an en banc rehearing or petition the Supreme Court; any such filing would be a meaningful escalation. Regulators at the CFTC, which oversees prediction market contracts, will also face pressure to clarify their position in light of the appellate ruling.
Gambling involves financial risk. Full coverage of this week's developments is available at SBC Americas.
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