Vardan KhachatryanPrediction markets in Wisconsin
14 of the 15 apps we rank are open here, and 11 offer sports contracts.
- Apps restricted or contested
- Kalshi, Polymarket US, Robinhood, DraftKings Predictions, Fanatics Markets, FanDuel Predicts
- Rulings and actions in Wisconsin
- 7 on record, listed in the timeline
- Legal sports betting
- At tribal casinos; a 2026 law allows mobile bets through tribal servers
- Minimum age
- 18 on most apps, 21 on Novig and Interactive Brokers
- Federal appeals court
- Seventh Circuit: has not ruled on the question
- Last change
- September 21, 2026
Each entry on this page links the ruling or report it rests on. Nothing here is legal advice.
Why prediction markets are legal in Wisconsin
Prediction market apps sell event contracts: yes-or-no questions that pay $1 if the answer is yes. The CFTC regulates the exchanges that list them.
The apps say that federal oversight is all they need. Wisconsin disagrees about one category: sports.
Its attorney general has sued five operators, calling their sports contracts illegal gambling. No court has ruled on those suits yet.
Until one does, every category stays open. Here is who offers what, and where each case stands.
Which prediction market apps work in Wisconsin
Almost every app we rank lets Wisconsin residents trade, and most offer sports contracts.
Fanatics Markets is the exception. Wisconsin was on its launch list in December 2025, but has since dropped off.
DraftKings and FanDuel leave sports out of their prediction apps here. Interactive Brokers lists no sports contracts anywhere.
Wisconsin's suits name Kalshi, Robinhood, Coinbase, Polymarket US and Crypto.com. None is under a court order in Wisconsin.
Age rules differ. Most apps take traders from 18. Novig and Interactive Brokers require 21.
The table lists each app in our ranking order, with its status here and a link to our review.
| App | Status in Wisconsin | More |
|---|---|---|
| Kalshi | Contested for sports contracts, with no restriction in force | Is Kalshi legal in Wisconsin? |
| Gemini Predictions | Available, sports included | Gemini Predictions review |
| Polymarket US | Contested for sports contracts, with no restriction in force | Polymarket review |
| OG | Available, sports included | OG review |
| Interactive Brokers | Available; it lists no sports contracts anywhere | Interactive Brokers review |
| Robinhood | Contested for sports contracts, with no restriction in force | Robinhood review |
| ProphetX | Available, sports included | ProphetX review |
| Coinbase | Available, sports included | Coinbase review |
| Webull | Available, sports included | Webull review |
| Novig | Available, sports included | Novig review |
| DraftKings Predictions | Available, but not for sports contracts | DraftKings Predictions review |
| Fanatics Markets | Not available | Fanatics Markets review |
| FanDuel Predicts | Available, but not for sports contracts | FanDuel Predicts review |
| PrizePicks | Available, sports included | PrizePicks review |
| Underdog Predict | Available, sports included | Underdog Predict review |
Is Polymarket legal in Wisconsin?
Yes, through Polymarket US, for now. It runs on a CFTC-designated exchange and accepts Wisconsin residents.
Wisconsin has sued it, though. Its April 23 suit against QCX LLC, the Polymarket US exchange, targets sports contracts.
The case sits in federal court in Madison, No. 3:26-cv-00375. Polymarket US has asked to move it to the Eastern District.
The international site is a different product. Polymarket.com runs on crypto, is not CFTC-regulated and is close-only for Americans.
Our Polymarket review covers its fees, payouts and how the US app works.
How a prediction market trade works
Every contract is a yes-or-no question. It pays $1 if the answer is yes and nothing if it is no.
The price is the crowd's odds. A contract at 60¢ means traders put the chance at about 60%.
Say the Badgers are 60¢ to win on Kalshi. You buy 100 contracts for $60, plus a $1.68 fee.
If they win, you collect $100, a $38.32 profit. If they lose, you are out $61.68.
You can also sell before the result, at whatever the market pays then. New to this? Start with what prediction markets are.
What Wisconsin has said about prediction markets
Wisconsin's attorney general has made the state's view plain. He did it in court.
On April 23, 2026, Josh Kaul filed three suits in Dane County. They name Kalshi, Robinhood, Coinbase, Polymarket and Crypto.com, with affiliates.
“Thinly disguising unlawful conduct doesn't make it lawful,” he said. “These companies' alleged facilitation of sports betting in Wisconsin should be shut down.”
Each suit calls sports contracts commercial gambling under Wis. Stat. § 945.03(1m), and a public nuisance.
They ask the courts to stop the apps offering sports contracts to anyone located in Wisconsin. Other categories are not part of the suits.
Governor Tony Evers took a narrower step. In May 2026, he barred state employees and their families from trading on inside knowledge.
The court cases that shape Wisconsin's rules
Three fights are running at once, and each could change what you can trade. The first is the state's own suits.
They were moved to federal court in Madison, and Wisconsin wants them back in state court. In Kalshi's case, it also seeks a preliminary injunction.
The second is the CFTC's countersuit. On July 28, Judge William Griesbach refused to block Wisconsin's suits.
He found the CFTC unlikely to prove sports contracts are swaps. The CFTC, Kalshi and the American Gaming Association have all appealed.
The third is the Ho-Chunk Nation's case against Kalshi. In May, Judge William Conley found the Nation likely to win its tribal gaming claim.
Kalshi is now asking the Seventh Circuit for an early appeal. Our page on whether Kalshi is legal in Wisconsin covers all three.
One app went on offense. Novig's exchange sued Kaul on August 14, asking a court to shield it from state gambling law.
What Wisconsinites can trade
Sports lead. The Packers' October 4 game against Tampa Bay already trades on Kalshi. So does the Badgers' game against Michigan State.
Politics is lighter this year. Wisconsin elects a governor on November 3, 2026, and has no US Senate race.
Economics, crypto, culture and weather markets round it out. None of them is part of Wisconsin's suits.
The risks for Wisconsin traders
The law could shift. If a court grants Wisconsin's injunction, sports contracts could close for anyone located in the state.
The federal backstop is weak here. The one federal judge to rule on Wisconsin's law found the CFTC unlikely to win.
Tribal land carries its own risk. A ruling for the Ho-Chunk Nation could close Kalshi's sports contracts on its lands.
You can lose everything you put into a contract. A 90¢ favorite that loses pays nothing.
Trade only what you can afford to lose. Our responsible trading guide covers limits and where to get help.
What could change for Wisconsin traders
Three things could. First, a ruling in the state's own suits, on sending them back or on the injunction request.
Second, the Seventh Circuit. It has the CFTC's appeal and Kalshi's Ho-Chunk petition, and its rulings bind Wisconsin, Illinois and Indiana.
Third, the Supreme Court. New Jersey has asked it to settle the circuit split. A ruling there would apply in every state.
Our litigation tracker follows each of these cases.
Wisconsin prediction market timeline
Every change to prediction markets' standing in Wisconsin, newest first. Each entry links the ruling, law or filing behind it.
Prediction markets vs sports betting in Wisconsin
Wisconsin's sportsbooks belong to the tribes. Their gaming compacts let them take sports bets on tribal land.
Assembly Bill 601, signed on April 9, 2026, goes further. It allows mobile bets placed through servers on tribal land.
Evers signed it warily. He rejected any plan “leaving only crumbs for others” among the state's 11 tribes.
Prediction market apps sit outside that system. They answer to the CFTC, and that is the whole dispute.
How to choose a prediction market app in Wisconsin
Start with the cases. Five operators face Wisconsin's suits over sports, and the rest do not.
Then pick by market. For politics and the economy, Polymarket US and Kalshi list the widest range.
Compare fees next. They vary more than prices do. Our fee comparison works out each app's cost on the same trade.
Our app rankings score every app on the same six criteria. If you use Kalshi, read whether Kalshi is legal in Wisconsin first.