A federal court in Illinois dismissed a lawsuit challenging Kalshi, a prediction market operator, on jurisdictional and pleading grounds. The plaintiff attempted an unusual legal theory by invoking the Statute of Anne, an 18th-century English statute, to recover gambling losses incurred by a third party who had not filed suit.

Under the plaintiff's theory, he could sue a gambling winner to recoup losses belonging to someone else, provided the original loser allowed a statutory deadline to expire. The approach lacks precedent in modern American law.

The court rejected the claim on two independent grounds. First, it found no personal jurisdiction over Kalshi because the plaintiff failed to establish that the operator engaged in relevant transactions within Illinois. Second, the complaint failed to plausibly allege basic facts about the purported gambling losses, including where and when they occurred.

The dismissal reflects fundamental deficiencies in both jurisdiction and pleading. Federal courts require specific jurisdictional contacts with the forum state. A defendant's general website accessibility does not establish jurisdiction absent evidence of targeted activity directed at Illinois residents. The plaintiff presented no such evidence regarding Kalshi's operations.

The pleading deficiency compounds the jurisdictional problem. Federal Rule of Civil Procedure 8 requires complaints to contain "a short and plain statement of the claim showing that the pleader is entitled to relief." The plaintiff's allegations lacked specificity about the gambling transactions at issue, including identifying the actual loser, the amount wagered, the date of the bet, or the market prediction involved. Courts routinely dismiss complaints with similar defects.

The plaintiff's reliance on the Statute of Anne appears legally baseless in this context. That 1710 English statute addressed wagering contracts, but courts have not extended its principles to allow third-party recovery in modern prediction markets, particularly not decades after a loss occurs.

The ruling reinforces that prediction market operators