A few years ago, betting on a football game meant a sportsbook app. Today it might mean buying a "yes" contract on an app that looks more like a stock brokerage than a casino. Prediction markets like Kalshi and Polymarket have exploded in 2026, and they are quietly changing who gambles, how they gamble, and how hard it is to notice when it becomes a problem.
Here's what you need to know, especially if you live in Tennessee.
What Is a Prediction Market?
A prediction market lets users buy and sell contracts on the outcome of real-world events. If you think the Titans will win Sunday, you buy a "yes" contract. If they win, it pays out. If they lose, you lose what you paid.
The platforms call this trading. Critics call it sports betting with a different label. The numbers suggest the critics have a point: Fortune reported that about 90% of wagers on Kalshi involve sports, and users traded more than $1.2 billion on the Super Bowl alone.
Why Experts Are Worried
Three things set prediction markets apart from traditional sportsbooks, and each one matters for people at risk of gambling problems.
- Lower age limits. Tennessee requires sports bettors to be 21. Many prediction markets allow users at 18. Quartz reported that analysts are seeing a wave of 18 to 20 year olds turning to these apps because they can't use regular sportsbooks yet.
- It doesn't feel like gambling. When the screen says "trade" and "contract" instead of "bet" and "odds," people may not recognize what they're doing. That makes it easier to rationalize losses.
- Gaps in the safety net. Someone who has self-excluded from state-licensed sportsbooks may still be able to open a prediction market account, because those platforms operate under federal rules rather than state gaming law.
Glenn Yamagata of the Oregon Council on Problem Gambling put it simply to Fortune: "Prediction markets have expanded the footprint of sports betting."
Kalshi, for its part, says it offers protections like self-exclusion and spending limits, and that users trade against each other rather than against the house.
Where Tennessee Stands
Tennessee has pushed back. In January 2026, the state's Sports Wagering Council sent cease-and-desist letters to Kalshi, Polymarket, and Crypto.com over their sports contracts. Kalshi took the fight to federal court and won a temporary block on enforcement, and the broader legal battle between states and prediction markets is still playing out nationwide.
For Tennessee families, the practical takeaway is this: a 19-year-old who can't legally place a bet on a sportsbook app may still be finding ways to wager on the same games.
Warning Signs to Watch For
Whether it happens on a sportsbook, a prediction market, or a group chat with friends, problem gambling tends to look the same. Watch for:
- Spending more time or money than planned, again and again
- Chasing losses with bigger bets to "win it back"
- Hiding activity, deleting apps, or being vague about money
- Borrowing money or missing bills
- Restlessness or irritability when trying to cut back
- Calling it "investing" when the account keeps going down
If two or three of those sound familiar, it's worth taking a closer look.
Where to Get Help in Tennessee
The good news is that gambling problems respond well to treatment, and Tennessee has one of the most established programs in the country. The Gambling Clinic, based at the University of Memphis with locations in Nashville and Johnson City, describes itself as the nation's longest-serving clinic dedicated solely to treating gambling problems. It offers cognitive-behavioral therapy in person or by telehealth anywhere in the state, and treatment is free for Tennessee residents.
If you're not sure whether your own betting has crossed a line, a confidential screening is a low-pressure place to start. You can also call or text the national helpline at 1-800-GAMBLER any time.
The Bottom Line
The label on the app doesn't change what's happening. If you're putting money on the outcome of a game and losing more than you can afford, it's gambling, whether the platform calls it a bet or a trade. Knowing that is the first step to keeping it fun, or getting help if it's stopped being fun.