Genius Sports Signs Kalshi and Polymarket as US Prediction Markets Scale
Genius Sports has signed official data and integrity deals with the two biggest US prediction markets inside 48 hours, a sign of how quickly the sector is drawing in the sports-data and betting industry.
The data supplier announced an agreement with Kalshi on August 5, 2026, a day after a separate deal with Polymarket.
Inside the Kalshi Deal
Under the Kalshi agreement, Genius Sports (NYSE: GENI) will supply real-time official data across its full soccer portfolio, including the English Premier League, Serie A, Liga MX, the Argentine Primera Division and France's Ligue 1.
The data is meant to settle prediction-market contracts from a single verified source, cutting reliance on unofficial or delayed feeds. Kalshi will also join Genius Sports' information-sharing processes, restricting certain market types to protect against manipulation.
"As the prediction market ecosystem continues to expand at a rapid pace, the use of official data and integrity services is more important than ever," said Adam Barrick, Head of Sports Partnerships at Kalshi, in the company's announcement.
Sean Conroy, Genius Sports' EVP of Rights and Partnerships, said the deal shows how the supplier can provide "the essential technology layer that enables accurate and transparent sports markets".
The Polymarket Agreement
The Polymarket deal, announced August 4, goes further on content.
It gives Polymarket exclusive live streaming rights and league IP across selected competitions, including Serie A, alongside official data to settle contracts on its CFTC-regulated US platform.
Ari Borod, President of Sports Business Development at Polymarket, said the arrangement gives leagues "direct visibility into prediction market activity around their competitions". Polymarket now lists league tie-ups spanning MLB, Liga MX, the Bundesliga, La Liga, Serie A, MLS, NHL and UFC.
Why Prediction Markets Are Scaling
Both deals point at the same thing. Prediction markets, which let users trade yes or no event contracts rather than place traditional wagers, have scaled fast in the United States by operating under Commodity Futures Trading Commission oversight rather than state betting law.
That structure lets them reach states where sportsbooks cannot.
The Betting Industry's Response
The betting industry is treating the category as an opportunity rather than a threat. Sportradar (Nasdaq: SRAD) told investors on August 3 that quarterly revenue rose 19% to 378 million euros, and chief executive Carsten Koerl said the company had "further expanded our addressable market, entering into strategic partnerships with key prediction market participants".
DraftKings (Nasdaq: DKNG) leaned in harder.
Reporting second-quarter results on August 6, chief executive Jason Robins said its Predictions product is "already growing faster than we anticipated" and voiced confidence the company can "win the category this NFL season and beyond".
Flutter, which owns FanDuel, struck a similar note in its own results, calling prediction markets "a very attractive opportunity, incremental to sports betting and iGaming". Not everyone frames it that way.
Kalshi chief executive Tarek Mansour has drawn a sharp line between exchanges and sportsbooks, telling the Axios Show in April 2026 that traditional books are "designed for customers to lose" while prediction markets "reward them for being right".
What to Watch Next
That debate is the real story behind the deals.
If prediction markets keep growing, the supply chain that feeds sportsbooks with data and integrity tools stands to profit either way, which is why Genius Sports and Sportradar are moving early.
The next test is regulatory: how courts and the CFTC settle the question of whether sports event contracts are trading or betting will decide how large this market can get, and how much of it the established sports betting industry can capture.
