USTA Grants Exclusive Rights to Kalshi for Prediction Market
The United States Tennis Association (USTA) has reached an exclusive prediction market partnership with Kalshi for the US Open, effective immediately, and restricts other prediction market platforms from advertising at event venues and during ESPN broadcasts.
The agreement was finalized in the last stages before the main event, following the conclusion of the US Open qualifying rounds. Two individuals familiar with the deal stated that the parties did not disclose the financial terms, duration, specific rights package for Kalshi, the scope of event data authorization, or whether it includes formal event outcome contracts.
The US Open is owned and operated by the USTA. Sources indicated that the association originally planned to consider partnerships in the prediction market category only after 2027, but the newly appointed CEO Craig Tiley pushed to advance the collaboration to this year's event.
The most exclusive terms of the agreement are the advertising restrictions: the USTA will prevent other prediction markets from promoting at US Open venues and on television, covering the event broadcaster ESPN. This arrangement not only provides venue brand exposure but also seeks to eliminate competition from similar platforms like Polymarket at core event traffic entrances.
As of the time of the announcement, Kalshi had not appeared on the official partner list for the US Open; a previous market analysis article on women's singles released by Kalshi still stated that it had no affiliation with the US Open or WTA. Both Kalshi and ESPN declined to comment, and the USTA did not respond immediately, indicating that the formal sponsorship level and the boundaries of tradable contracts still await public confirmation from all parties involved.
This collaboration comes amid increasing regulatory controversies surrounding prediction markets in the U.S. A federal appeals court recently ruled that the CFTC's current rules prohibit offering contracts related to sports betting in prediction markets and upheld the decision to lift related bans; thus, Kalshi's sports event contract business still faces parallel legal risks from state gaming regulations and federal commodity regulations.
In market mechanics, Kalshi exchanges exclusive advertising resources for low-cost customer acquisition and brand legitimacy among US Open audiences, while the event organizers gain new category sponsorship revenue; other prediction markets lose access to this high-value traffic entrance at venues and ESPN, relying instead on digital advertising, creator channels, or other sports rights collaborations to compete for users. If the platform can continue to provide trading contracts, the progress of the matches will drive user orders and liquidity concentration, allowing Kalshi to earn trading fees and new accounts; however, regulatory rulings, event integrity requirements, and whether contracts are allowed to go live will ultimately determine whether this exclusive right can translate into real trading volume.
Source: Public Information
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Kalshi has previously expanded its sports partnerships to MLB teams. The company announced in August collaborations with teams such as the Los Angeles Dodgers, Boston Red Sox, San Diego Padres, San Francisco Giants, and Atlanta Braves, but it was later revealed by Front Office Sports that not all five agreements were exclusive: the Giants and Braves agreements are not exclusive, while the Dodgers, Red Sox, and Padres arrangements do include exclusive elements, with some agreements having mutual exit clauses that can be exercised in October. Therefore, the US Open agreement appears to be a correction for Kalshi after the controversy: it no longer ambiguously uses the marketing term "fully exclusive" but instead secures clear exclusive resources covering venues and ESPN broadcasts.
In terms of capital pathways, Kalshi is not just purchasing event naming exposure but is acquiring entry points to sports audiences, exclusive advertising rights, and institutional credibility. The unit economics of prediction markets depend on active traders, contract trading frequency, liquidity depth, and market-making efficiency; Grand Slam events provide two weeks of continuous match nodes, clearly verifiable results, and a global audience, enabling the platform to repeatedly convert viewing users into accounts, margins, and trading volume. By extending exclusive rights to ESPN, the USTA effectively binds traditional sponsorship rights to television distribution channels; Kalshi thus reduces the likelihood of competitors siphoning users in the same viewing context.
Historically, there is a mature paradigm for sportsbooks purchasing official partnership qualifications with professional sports leagues: FanDuel, DraftKings, and BetMGM compete for customer acquisition through broadcasting, venues, and data collaborations. The difference for Kalshi is that it positions itself with event contracts regulated by the CFTC, rather than as a traditional state-licensed sports betting operator; however, the economic effects of sports event contracts are highly similar to betting, which is also the root of regulatory conflicts. The US Open collaboration indicates that the industry is in an expansion phase of "commercial recognition first, regulatory classification undecided": event organizers view the platform as a new sponsorship category to sell, while courts and regulatory bodies are still defining whether it can offer related contracts.
Essentially, this is a channel competition under regulatory changes. Sports rights holders are not selling the results of matches themselves, but rather audience attention, brand trust, and conversion touchpoints; prediction market platforms are not purchasing a regular advertisement but are normalizing the position of "trading event outcomes" within mainstream sports contexts. The mechanism is that exclusive collaborations lower the perceived threshold of legitimacy and safety for users on the platform, traffic generates trading volume, trading volume improves liquidity, and liquidity attracts users. However, when courts determine that current rules prohibit sports event contracts, there may be a disconnect between sponsorship rights and tradable products: Kalshi can still gain brand exposure but may not be able to convert all US Open matches into a legally tradable market. Therefore, the truly scarce asset is not the event logo, but trading contracts that are allowed by regulators, have clear settlement, and sufficient liquidity existing simultaneously.
ABAB News · Cognitive Laws
Traffic can be bought, compliance cannot be bought
Exclusive advertising occupies the entrance, regulation determines monetization
Viewing generates attention, liquidity generates trading