Apparently, the solution to America’s prediction-market regulatory mess involves Kevin Costner, a Colorado ranch, some of the biggest names in gambling, tribal leaders, prediction-market executives, and, naturally, private jets.
Because of course it does.
According to some terrific original reporting from InGame, Kevin Costner is opening up his Dunbar Ranch in Colorado for a private, three-night gathering designed to bring together the various factions currently fighting over the future of sports prediction markets. InGame spoke directly with Costner and obtained the letter he sent to potential attendees.
And honestly, we have questions.
Mostly: How did Kevin Costner somehow become the adult in the room?
Yellowstone, But Make It Prediction Markets
Here is roughly where the industry sits right now:
Prediction-market platforms believe federally regulated sports event contracts can operate under the Commodity Futures Trading Commission framework.
States have argued that contracts that effectively allow someone to trade on whether the Chiefs beat the Bills look an awful lot like sports betting — and therefore should be subject to state gaming laws.
Tribal gaming interests have raised separate questions involving sovereignty and rights protected under the Indian Gaming Regulatory Act.
Sportsbook operators have spent years acquiring licenses, negotiating market access, paying gaming taxes and complying with state-by-state rules while watching prediction platforms suddenly enter markets through a completely different regulatory door.
And everybody has lawyers.
So many lawyers.
The disagreement is no longer academic. New Jersey filed a petition with the U.S. Supreme Court on September 2 asking the Court to review whether federal commodities law prevents states from applying their gambling laws to Kalshi’s sports event contracts. The petition is currently pending.
Meanwhile, federal appeals courts have reached different conclusions in major cases involving these markets. Most recently, on September 16, the Ninth Circuit sided with two California tribes seeking to block Kalshi sports contracts on tribal lands while litigation continues.
In technical legal terminology, this situation is known as: A complete mess.
Enter Kevin Costner
Costner told InGame that he doesn’t have a financial stake in the fight. He does, however, know people on several sides of it. He also happens to own a secluded ranch near Aspen.
You can probably see where this is going.
Rather than another conference ballroom with sponsored lanyards, lukewarm coffee and six panels discussing “The Future of Regulated Event-Based Financial Products,” Costner has proposed something considerably different.
Get the actual decision-makers together. Keep them there for three nights.
Eat together.
Talk.
Think.
Talk some more.
And ideally prevent everyone from escaping the moment someone says something they don’t like. Costner even joked to InGame about the executives being unable to simply hop into their G5s and leave.
This may be our favorite detail in the entire story.
Nothing says grassroots regulatory compromise quite like:
“Nobody is leaving until we figure this out. Park the Gulfstream.”
The Guest List Sounds Ridiculous
According to InGame, the invitations went to major commercial gaming executives, tribal leaders, prediction-market executives, former regulators and deal advisers.
In other words, imagine assembling nearly everyone currently involved in one of the most expensive regulatory turf wars in American gambling…
…and sending them to Kevin Costner’s house.
Forget G2E.
This is the conference we want a credential for.
Costner reportedly said roughly 70% of those invited had already responded to him.
Which leaves us wondering about the other 30%. Imagine receiving an email saying:
Kevin Costner would like you to spend three nights at his Colorado ranch discussing the future of American gambling.
And replying:
“Let me check my calendar.” Buddy, clear the calendar.
There is another reason everyone might actually show up.
The money has gotten enormous.
This isn’t a theoretical debate about some tiny experimental corner of finance anymore. Prediction markets are processing billions of dollars every month, sports contracts are increasingly at the center of the action, and seemingly every company with an app, an exchange partner or a spare derivatives lawyer wants in.
Which brings us to the numbers.
There Is, However, a Serious Point
Beneath the Hollywood storyline is a legitimate question that the gaming industry needs to resolve.
Costner framed it particularly well in his letter:
“Is there an ecosystem where tribal sovereignty and interests are respected, states can fulfill their responsibilities, established gaming companies have certainty, and emerging prediction platforms can find a workable path forward?”
That is really the entire debate. And there isn’t an obvious answer.
Prediction markets have exploded into sports at remarkable speed. Kalshi’s expansion helped push the question from an obscure regulatory discussion into one of the biggest issues facing the gambling and financial-trading industries.
Legacy gaming companies understandably want clarity about whether competitors offering similar sports products must play under comparable rules.
States are defending regulatory systems and revenue structures they have spent years creating.
Tribal governments have legal and economic interests tied to gaming compacts, sovereignty, and IGRA.
Prediction platforms argue that their products are federally regulated financial contracts rather than conventional sportsbook wagers.
Those positions have now collided in courts around the country.
So while Kevin Costner’s Prediction Market Sleepover makes for a pretty spectacular headline, the people sitting around that table could be discussing a framework that affects billions of dollars in future trading and gaming activity.
And Costner may want to check the guest-room situation.
Because the prediction-market ecosystem is getting crowded in a hurry.
Can A Ranch Actually Solve This?
Who knows?
But Costner’s theory isn’t completely crazy.
These groups have largely been communicating through court filings, cease-and-desist letters, lobbyists, press releases, and attorneys.
Not exactly history’s greatest collection of conflict-resolution tools.
Putting the actual decision-makers in one location without cameras, panels, prepared remarks, or the ability to immediately retreat to their respective camps could produce a different conversation.
Or everyone could eat a very expensive steak, argue about the Commodity Exchange Act for 72 hours and fly home.
Both outcomes seem entirely plausible.
And the train isn’t exactly slowing down. CLEATZ’s current 30-day tracker shows $12.38 billion in Kalshi cash volume, another $4.15 billion across Polymarket’s international and U.S. venues, and $1.14 billion in observed Novig notional.
Again: Kevin Costner isn’t hosting an intervention for a niche hobby.
There is a staggering amount of money moving through this ecosystem, an expanding list of companies trying to enter it, and several governments arguing over who gets to make the rules.
Costner Has One Other Interesting Connection to Gaming
Costner isn’t coming completely out of left field. He owned the Midnight Star casino in Deadwood, South Dakota, for 26 years, according to InGame.
His partner in organizing the retreat is entrepreneur Kasey Thompson, a former Pala Interactive executive and high-stakes poker player who has previously been involved in efforts surrounding California sports betting.
So this isn’t simply:
“Famous actor discovers Kalshi.”
There are real gaming relationships behind the idea.
Still…Kevin Costner possibly helping settle the future of American prediction markets was absolutely not on our 2026 bingo card.
If You Host It, Will They Compromise?
Costner told InGame that he likes unconventional ideas.
Mission accomplished.
The prediction-market fight has reached the point where states, tribes, gaming companies and trading platforms are simultaneously battling in federal courts while the Supreme Court considers whether to enter the conversation.
Apparently the next logical step is Aspen. And maybe that’s exactly what this needs.
No conference stage. No 57th-floor boardroom.
No X threads explaining why the other side doesn’t understand derivatives law.
Just three nights at a ranch, some very powerful people, and Kevin Costner essentially saying: Can everybody please figure this out?
If Costner actually manages to get DraftKings types, tribal gaming leaders, prediction-market executives and regulators to agree on a workable framework over dinner…Give the man the Nobel Prize in Event Contracts.
This article relies heavily on original reporting from InGame, which interviewed Kevin Costner and obtained his invitation letter concerning the proposed gathering.
Read the full original reporting at InGame: Costner Hopes To Create Space To Solve Prediction Predicament.
Jason Ziernicki is the founder of CLEATZ and has worked in the online sports betting industry since 2012. At CLEATZ, he focuses on public betting data, sportsbook line movement, prediction markets and data-driven sports betting tools.
