Prediction Markets Gain Sportsbook-Level Legitimacy as Genius Sports Strikes Polymarket and Kalshi Deals

Genius Sports has struck data and integrity partnerships with both Polymarket and Kalshi this week, following Sportradar's similar moves in June. 

The deals hand the two CFTC-regulated exchanges official league data and integrity monitoring, the same legitimacy tools that took traditional sportsbooks years and hundreds of millions in compliance spend to earn state by state.^[1]

The deals themselves

Genius Sports announced two separate agreements this week. 

One with Polymarket, covering official real-time data, integrity services, and exclusive US streaming rights for Serie A, and one with Kalshi, covering data across a broader soccer portfolio including the Premier League, Ligue 1, and Liga MX. 

Both take effect immediately for US-based users. Sportradar signed comparable multi-year deals with the same two exchanges back in June, and CEO Carsten Koerl told investors this week that prediction markets represent a "natural adjacency" that expands the data supplier's addressable market by reaching states where traditional sports betting isn't licensed.

That last point is the one worth sitting with.

Why this matters more than the headline suggests

Prediction market platforms like Polymarket and Kalshi operate under Commodity Futures Trading Commission oversight as federally regulated derivatives exchanges, not as state-licensed sportsbooks. That distinction lets them offer sports-outcome contracts in states where mobile sports betting is restricted or unavailable, without going through the licensing process operators like FanDuel or DraftKings had to survive.

However, prediction markets have been hanging in the balance, with regulators and lawmakers continuing to debate whether sports-event contracts should fall under federal derivatives rules or state-level gambling laws.

Until now, the one thing prediction markets lacked was the credibility infrastructure that regulated sportsbooks spent a decade building: verified official data feeds, league integrity partnerships, and anti-manipulation monitoring. 

Genius Sports and Sportradar just handed them all three, in the space of a few months, without either exchange having to build a compliance function from scratch.

That's the arbitrage. Prediction markets get to look and feel like a regulated, trustworthy betting product, same data, same integrity safeguards, several of the same league relationships, while sitting outside the regulatory perimeter that actually governs sports betting in most states. 

For a US bettor, the practical difference between "placing a bet" and "buying an event contract" is close to invisible. For a state gaming regulator, it's the difference between something they can tax and license, and something they currently can't touch.

The real winners, and who should be watching

The most striking part of this pattern isn't the exchanges, it's that Genius Sports and Sportradar are now selling the same data and integrity services to prediction markets and to the regulated sportsbooks competing against them. 

Both companies profit regardless of which side of the regulatory line ultimately wins the US market. That's a comfortable position for a data supplier and an uncomfortable one for operators who've built their business around the licensing moat these deals just made slightly less relevant.

This is worth tracking as a third channel rather than a footnote, particularly against the backdrop of the illegal betting market debate in California and hold-rate scrutiny in Massachusetts. 

Illegal offshore books, regulated state-licensed sportsbooks, and now federally regulated prediction markets are increasingly competing for the same bettor, under three different rulebooks. Legend's involvement, the media platform Genius acquired for $1.2bn earlier this year, adds a distribution layer on top, bundling live streaming with event contracts in a way regulated sportsbooks in restricted states simply can't match.

None of this guarantees prediction markets displace regulated betting. State regulators and licensed operators have pushed back before, and legal challenges to the CFTC's jurisdiction over sports-outcome contracts are still working through the courts. But every data and integrity deal signed this year makes the prediction market model look a little more permanent, and a little harder for state regulators to argue is a passing novelty.