Sportradar has significantly expanded its partnership with Polymarket, giving the prediction market access to official sports data, live streaming, odds and integrity services across more than 20 leagues and competitions covering roughly 300,000 matches a year.
The expanded U.S. agreement announced Thursday adds properties including Germany’s Bundesliga, Euroleague Basketball, the Chinese Basketball Association, Australia’s National Basketball League, tennis Grand Slams and UTR Pro events. The deal broadens Polymarket’s sports coverage particularly across soccer, basketball and tennis.
It builds on an existing relationship covering the ATP Tour, Major League Baseball, the National Hockey League, Major League Soccer and the UFC.
The companies did not disclose financial terms or the length of the expanded agreement.
Sportradar will provide several layers of infrastructure rather than simply supplying final scores. Its real-time data and live odds will support pre-game and in-play markets, while official data will also help determine and settle contracts accurately.
The agreement also brings audiovisual content directly into Polymarket. Sportradar will provide live streaming across a portfolio that includes exclusive prediction-market streaming rights for ATP Tour tennis, the Bundesliga and Euroleague Basketball.
That means eligible Polymarket users will increasingly be able to watch an event alongside markets linked to the same game, bringing the platform closer to the integrated live-betting experience already common at major sportsbooks.
Sportradar will additionally provide scores, schedules and data visualizations, along with marketing and customer-acquisition services aimed at sports users.
Integrity is another major component.
Polymarket will have access to Sportradar’s Universal Fraud Detection System, or UFDS, which uses data and artificial intelligence to detect potentially suspicious betting behavior. The relationship also includes Sportradar Integrity Exchange, a system through which participating organizations can securely share information about possible threats to sporting integrity.
Sportradar CEO Carsten Koerl described prediction markets as an adjacent growth opportunity for the sports-data company, arguing that reliable real-time information, live content and integrity controls are necessary for efficient pricing and dependable market settlement.
The agreement positions Sportradar increasingly as an infrastructure provider to prediction markets rather than solely to conventional sportsbooks.
That strategy has accelerated this year.
In June, Sportradar signed a multi-year global agreement with Polymarket rival Kalshi covering official sports data and other services for properties including MLB, the NHL, MLS and UFC. Sportradar said at the time that the agreement would also give it opportunities across Kalshi’s broader ecosystem, including market makers and brokers.
The company highlighted prediction markets again in its second-quarter results earlier this month, specifically identifying new partnerships with leading prediction-market exchanges as an expansion of its addressable market.
Sportradar reported second-quarter revenue of €378 million, up 19% from a year earlier, while adjusted EBITDA rose 19% to €76 million. Its Betting Technology & Solutions segment generated €314 million, representing growth of 21%.
Polymarket Builds Out Its Sports Offering
Polymarket has meanwhile been aggressively building relationships with established sports organizations as it expands its U.S. business.
Earlier this month, it became the ATP Tour’s official prediction-market provider through an agreement with Tennis Data Innovations. The arrangement gave Polymarket exclusive streaming rights within the prediction-market category for ATP Tour and ATP Challenger Tour matches.
Registered U.S. users can watch live tennis while trading related contracts, with official real-time data and odds distributed by Sportradar. The arrangement covers approximately 20,000 matches per season.
Polymarket has also established sports relationships covering MLB, the NHL, MLS and UFC.
Its expansion into U.S. sports follows its re-entry into the regulated American prediction-market business. QCX LLC, which does business as Polymarket US, has been registered with the Commodity Futures Trading Commission as a designated contract market since July 2025.
Polymarket has been gradually rolling its U.S. platform out to customers, with its website currently directing prospective users to a waitlist.
The commercial expansion is happening, however, while the legal status of sports event contracts remains one of the most contested areas in U.S. financial and gambling regulation.
The CFTC issued an advisory in March reminding prediction-market exchanges of their obligations when listing event contracts, with specific attention to sports products and designated contract markets’ responsibilities under the Commodity Exchange Act.
The regulator has simultaneously taken the position that federally registered prediction markets fall within its exclusive jurisdiction, pushing back against state regulators attempting to treat sports event contracts as conventional gambling products.
That position suffered a major legal setback one day after the Sportradar-Polymarket announcement.
On Friday, the Ninth U.S. Circuit Court of Appeals unanimously ruled that Kalshi had failed to show that federal commodities law preempts Nevada’s gambling regulations when applied to its sports event contracts.
The court concluded that Kalshi’s sports contracts were likely not “swaps” under the Commodity Exchange Act because they were sports bets, allowing Nevada regulators to continue asserting jurisdiction.
The ruling does not directly invalidate Polymarket’s agreement with Sportradar, but it adds another layer of regulatory uncertainty around the U.S. sports market the partnership is designed to serve.
Analysis: Sportradar Is Building the Picks and Shovels of Prediction Markets
The most important part of this agreement may not be Polymarket’s addition of another 15 or so sports properties.
It is what Sportradar is becoming.
Prediction markets increasingly resemble a new distribution channel for an infrastructure business that Sportradar already understands extremely well.
Whether a customer is clicking “Over 2.5 Goals” at a sportsbook or buying a contract whose price reflects the probability of a team winning, the underlying technical requirements are remarkably similar: fast data, accurate pricing inputs, reliable settlement information, streaming and systems capable of detecting abnormal activity.
Sportradar does not need to decide whether prediction markets ultimately replace part of the sportsbook market, coexist with it or remain a relatively small niche.
It can sell infrastructure to both.
That makes the company’s deals with both Polymarket and Kalshi particularly significant. Sportradar is avoiding an exclusive bet on the eventual winner and instead positioning itself underneath two of the biggest brands competing for prediction-market volume.
Polymarket has an equally clear incentive to deepen the relationship.
Prediction markets built around politics or economic releases can often survive with relatively slow resolution. Sports are different.
In-play markets change every few seconds. A goal, penalty, injury or overturned decision can instantly alter the probability of an outcome. If one trader receives that information before another, pricing breaks down quickly.
Official low-latency data therefore becomes part of the market structure rather than simply a nice feature.
Streaming makes the proposition more powerful. Keeping users on the same screen while they watch and trade increases the opportunity for live engagement, exactly the model sportsbooks have spent years refining.
But the integrity component may ultimately prove more important than either data or video.
Sports prediction markets face many of the same manipulation concerns as sportsbooks: inside information, suspicious athlete activity, unusual trading around obscure competitions and markets that could theoretically be influenced by individual participants.
As these platforms become larger, leagues and regulators will expect monitoring systems capable of detecting those patterns.
That requirement should favor established suppliers such as Sportradar.
There is nevertheless a major contradiction sitting underneath the expansion.
Prediction-market companies are investing heavily in the machinery of sports betting at precisely the moment courts are debating whether their products are, legally speaking, simply sports bets.
The Ninth Circuit’s Aug. 28 Kalshi ruling makes that tension impossible to ignore.
If other courts ultimately follow the Ninth Circuit and allow states to impose their gambling laws on federally registered prediction exchanges, the economics of nationwide sports prediction markets could change dramatically. Platforms might face state licensing, taxation and product restrictions much closer to those imposed on conventional sportsbooks.
If the CFTC and platforms eventually prevail instead, prediction markets could have a structural advantage: federally regulated access to sports contracts without rebuilding the state-by-state sportsbook model.
Sportradar wins something in either scenario.
The legal classification of the product may change. The need for trustworthy sports data, pricing, streaming and integrity infrastructure does not.
That is the strategic logic behind the Polymarket expansion. Prediction markets are still fighting over what they legally are, but Sportradar is already supplying the technology they need to operate like mature sports markets.