Kalshi Becomes Exclusive US Open Prediction Market Partner

This deal signals prediction markets are moving from niche trading venues to mainstream sports sponsorship, a shift that could normalize them for a broader audience. The exclusivity component is the real story: it shows brands and rights holders now see these platforms as valuable enough to protect from competitors, which may accelerate similar partnerships across other major sports. For the market ecosystem, the open question is whether this visibility drives regulatory comfort or renewed scrutiny, and whether other leagues follow suit.