Vardan KhachatryanPrediction markets in Arizona
10 of the 15 apps we rank are open here, and 6 offer sports contracts.
- Apps restricted or contested
- Kalshi, Polymarket US, OG, Novig, DraftKings Predictions, Fanatics Markets, FanDuel Predicts, PrizePicks, Underdog Predict
- Rulings and actions in Arizona
- 1 on record, listed in the timeline
- Legal sports betting
- Online and retail since 2021
- Minimum age
- 18 on most apps, 21 on three
- State criminal case
- Against Kalshi, on hold under a federal injunction
- Federal appeals court
- Ninth Circuit: ruled against Kalshi on August 28, 2026
- Last change
- September 24, 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 Arizona, for now
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.
Arizona rejects the idea that federal oversight shuts it out. Selling event contracts in Arizona “without a license from the Department violates Arizona law,” its gaming regulator says.
It has gone further than most states. In March 2026, the attorney general filed 20 criminal counts against Kalshi.
One order keeps the market open. On May 5, 2026, a federal judge barred Arizona from enforcing its gambling laws against CFTC-regulated exchanges. That order is now under appeal.
Which prediction market apps work in Arizona
Every app we rank accepts Arizona residents. Only six list sports contracts here: Kalshi, Robinhood, ProphetX, Gemini, Coinbase and Webull.
The rest skip sports in Arizona. Several hold Arizona gaming licenses, and the state has made clear those licenses are at stake.
DraftKings and FanDuel hold Arizona sportsbook and fantasy licenses. Their prediction apps offer no sports contracts in states where they run sportsbooks.
Polymarket US lists no sports here either, by our records. Our page on whether Polymarket is legal in Arizona covers what is known.
Age rules differ. Most apps take traders from 18. Novig, Fanatics Markets and Interactive Brokers require 21.
The table lists each app in our ranking order, with its status here. Kalshi users should read whether Kalshi is legal in Arizona.
| App | Status in Arizona | More |
|---|---|---|
| Kalshi | Contested for sports and election contracts, with no restriction in force | Is Kalshi legal in Arizona? |
| Gemini Predictions | Available, sports included | Gemini Predictions review |
| Polymarket US | Not available for sports contracts | Is Polymarket legal in Arizona? |
| OG | Not available | OG review |
| Interactive Brokers | Available; it lists no sports contracts anywhere | Interactive Brokers review |
| Robinhood | Available, sports included | Robinhood review |
| ProphetX | Available, sports included | ProphetX review |
| Coinbase | Available, sports included | Coinbase review |
| Webull | Available, sports included | Webull review |
| Novig | Not available | 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 | Not available | PrizePicks review |
| Underdog Predict | Not available | Underdog Predict review |
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 Suns are 60¢ to win tonight 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 final buzzer, at whatever the market pays then. New to this? Start with what prediction markets are.
What Arizona has said about prediction markets
A great deal. The Department of Gaming sent Kalshi a cease-and-desist letter on May 21, 2025. It also sent letters to Crypto.com and Robinhood.
In June 2025, it wrote to the CFTC to oppose the exchanges. In September, it warned its licensees that dealing with them would count against their suitability.
It acted on that in December 2025. It moved to revoke Underdog's fantasy license over a partnership with Crypto.com, which then pulled its event contracts from Arizona.
Attorney General Kris Mayes filed charges against Kalshi in March 2026. “No company gets to decide for itself which laws to follow,” she said.
After the Ninth Circuit's August ruling, she added: “Calling a sports bet a ‘swap’ doesn't make it one.”
The court cases that shape Arizona's rules
Two sets of courts matter. In state court, Arizona charged KalshiEX LLC and Kalshi Trading LLC with 20 misdemeanors in Maricopa County.
Sixteen counts are for betting and wagering. Four are for election wagering, including a $2 trade on J.D. Vance winning in 2028.
In federal court, Kalshi's own bid to stop the case failed on April 8. The CFTC's succeeded, first with a temporary order and then an injunction on May 5.
The injunction covers every exchange the CFTC regulates. It stops criminal cases, civil suits and even subpoenas over their contracts.
Then the Ninth Circuit ruled in Nevada's case on August 28. It held sports contracts are likely not swaps, so states may regulate them.
Arizona says that ruling dooms the injunction. On September 14, it asked the Ninth Circuit to lift it for sports; the CFTC asked the court to wait.
What Arizonans can trade
On the apps with sports, the Cardinals, Suns, Diamondbacks and Mercury all trade, as do Arizona State and Arizona games.
Politics is the sensitive category here. Arizona bans election wagering, but the injunction covers that law too, so the contracts stay live.
Katie Hobbs faces Andy Biggs for governor on November 3, 2026: Arizona governor odds.
Mayes is on the same ballot, facing Warren Petersen for attorney general. Kalshi also lists the daily high temperature in Phoenix.
The risks for Arizona traders
The injunction could fall. If the Ninth Circuit lifts it for sports, Arizona could restart its case and push sports contracts out.
Your app could change without notice. Crypto.com left Arizona in December 2025, after the state moved against its partner Underdog.
You can lose everything you put into a contract. A 90¢ favorite that loses pays nothing.
Taxes apply. Arizona taxes income at a flat 2.5%, and how the IRS treats event contracts is not settled.
Trade only what you can afford to lose. Our responsible trading guide covers limits and where to get help.
What could change for Arizona traders
Three things could. The first is the Ninth Circuit, which may lift the injunction for sports once its Nevada ruling is final.
Kalshi has asked for a rehearing in that case, which delays it. The CFTC also expects a new gaming rule within two months.
The second is the ballot. Mayes brought the charges, and she faces Warren Petersen on November 3.
The third is the Supreme Court. New Jersey has asked it to settle the split, and a ruling there would apply in Arizona too. Our litigation tracker follows each case.
Arizona prediction market timeline
Every change to prediction markets' standing in Arizona, newest first. Each entry links the filing or order behind it.
Prediction markets vs sports betting in Arizona
Sports betting is legal in Arizona, online and in person, since 2021. It arrived with new gaming compacts that now cover 22 tribes.
The Department of Gaming licenses up to 10 pro teams and event hosts and up to 10 tribes. Bettors must be 21.
Licensed books pay 8% of retail and 10% of mobile revenue to the state. In 2024, that came to $42.7 million.
Prediction markets pay none of it and take traders from 18. That, in Arizona's view, is the whole problem.
How to choose a prediction market app in Arizona
Start with what you want to trade. For sports, you have six apps. For politics and the economy, Polymarket US and Kalshi list the most.
Then compare fees. 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. Each review covers fees, payouts and the lawsuits against it.
Choosing between the two biggest? Our Kalshi vs Polymarket comparison sets them side by side.