Sportradar has expanded its partnership with Polymarket to provide sports data, live streaming, and integrity services across more than 20 leagues and competitions covering approximately 300,000 matches per year. The Aug. 27 deal is a big jump from what the two companies had before, when the relationship mostly ran through a handful of major US sports, and it gives Polymarket a lot more to build both pre-match and live prediction markets on.
The new properties include Germany’s Bundesliga, Euroleague Basketball, the Chinese Basketball Association, Australia’s National Basketball League, tennis Grand Slams, and UTR Pro events. Sportradar handles the data and live odds that price and settle the markets, and its audiovisual package hands Polymarket exclusive prediction-market streaming rights for the Bundesliga and Euroleague, on top of the ATP Tour rights it already had.
Before this, Polymarket’s Sportradar coverage was Major League Baseball, the NHL, MLS, UFC, and the ATP Tour, so the expansion takes the partnership well outside the US leagues it started with. Tennis has been the loudest part of it. Polymarket became the ATP Tour’s official prediction market provider earlier this month, with Sportradar feeding it official real-time data and odds while putting live ATP and Challenger Tour streams right next to the markets.
There’s more in the deal than data and video, too. Sportradar is also providing scores, schedules, data visualizations, customer-acquisition services, and its integrity products, which include the Universal Fraud Detection System for spotting suspicious activity around events and the Sportradar Integrity Exchange, where participating organizations trade information about potential threats. Both companies say they can add more sports, products, and markets later.
Euroleague showing up here follows Sportradar renewing its own rights deal with Euroleague Basketball through 2031, announced a day earlier on Aug. 26. That covers over 650 EuroLeague and BKT EuroCup games a season, so Sportradar controls the official data and betting-streaming package it can now pass along to Polymarket. It has similar rights across tennis and elsewhere, which means it can serve prediction exchanges using the same feeds it’s been selling to sportsbooks for years.
MLB showed how this works back in March, when it made Polymarket its exclusive prediction market exchange partner. The league opened up its official data through Sportradar and set integrity limits on markets involving individual pitches, manager decisions, and umpire calls. That put the league, the exchange, and the data provider in one line instead of leaving Polymarket to cobble sports markets together from unofficial feeds.
Polymarket isn’t getting any of this exclusively, mind you. Sportradar signed a separate multi-year global deal with Kalshi in June for official data and services covering MLB, the NHL, MLS, and UFC, among others. It can also work directly with the companies operating around Kalshi, including market makers and brokers, who want low-latency sports data just as badly as the exchanges do.
All of which explains why prediction markets are now showing up as their own growth story in Sportradar’s earnings. The Q2 2026 results called out both the Kalshi and Polymarket agreements, with revenue up 19% year over year to €378 million and adjusted EBITDA at €76 million. Sportradar spent years building infrastructure for regulated sportsbooks, and prediction exchanges turn out to want the same things: fast official data, pricing tools, live video, and someone watching for match-fixing.
Polymarket, meanwhile, keeps tying itself closer to established leagues and financial infrastructure. Polymarket US runs as a CFTC-registered designated contract market, and Intercontinental Exchange, which owns the New York Stock Exchange, put another $600 million in during March after its initial $1 billion commitment in 2025. Sportradar’s expanded role fills in another piece, giving Polymarket official sports content at a scale much closer to what conventional betting operators have had all along.