Kalshi Tennessee and Polymarket Tennessee begin as the same story. One letter, one date, three companies. They do not end the same way. Kalshi sued and is trading in the state today under a federal injunction. Polymarket, as far as any public record shows, did neither — and the trackers that follow this market say it is geofenced out.
The Letter That Went to Three Companies
On January 9, 2026, Tennessee’s Sports Wagering Council sent cease-and-desist letters to Kalshi, Polymarket, and Crypto.com on the same day, ordering all three to stop offering sports event contracts to Tennessee residents, void open positions, and refund deposits by January 31. The penalties named were specific: $10,000 for a first violation, $15,000 for a second, up to $25,000 after that, with the possibility of criminal referral — a Class B misdemeanor for gambling promotion, a Class E felony if it rises to aggravated gambling promotion. That letter is the one fact this page and the Kalshi Tennessee page share word for word. What happened next is where they split.
What Kalshi did with its copy of the letter: sued individual state officials in federal court the same month, arguing its contracts are Commodity Exchange Act swaps that preempt Tennessee gambling law. Won a TRO, then a preliminary injunction from Judge Aleta Trauger on February 19, 2026. Is currently on appeal at the Sixth Circuit, argued July 30, no ruling yet.
What Polymarket Did With Its Copy
Nothing on the record matches it. Litigation trackers built specifically to follow prediction-market lawsuits state-by-state show Kalshi’s Tennessee case in detail and do not show a Polymarket-specific filing in Tennessee at all. That is not proof Polymarket did nothing — it is proof that if Polymarket fought back, it did not produce the kind of public court record Kalshi did. What is publicly reported instead is the end state: multiple current state-availability trackers, including a CBS Sports roundup, list Kalshi’s sports contracts as fully accessible in Tennessee and Polymarket as blocked.
Is Polymarket Legal, Legit, and Safe in Tennessee?
Legal: no. Not in the sense that matters — a live cease-and-desist order with no injunction standing against it, which is a materially weaker position than Kalshi’s. Legit: the Tennessee fight, for both companies, is a jurisdiction dispute about whether federal commodities law or state gambling law governs a sports event contract — it says nothing about whether either platform pays out honestly, and Polymarket US remains a CFTC-designated, KYC-verified exchange regardless of how this resolves. Safe: if the geofence reports hold up, the question mostly doesn’t arise, because the app will not load from a Tennessee address in the first place.
What This Means If You’re in Tennessee
Right now: Kalshi trades in Tennessee behind a federal injunction that survived one round of appeal arguments; Polymarket, by every current account, does not have that protection and does not appear to be reachable. Watch two things, not the app icon — whether the Sixth Circuit’s eventual ruling on Kalshi’s injunction reshapes what’s legally possible for every prediction-market platform in the state, and whether Polymarket ever produces its own Tennessee filing the way it has in Michigan. Neither platform is a way to make money, and a sports event contract can expire worthless no matter which company is allowed to sell it here. 21+ only, and if it stops feeling like a choice, 1-800-GAMBLER is free and confidential.