Kalshi prices Gauff at 95%, Zverev at 94% to advance in US Open Round 1
Kalshi traders price top seeds heavily favored in 2026 US Open Round 1: Coco Gauff at 95% and Alexander Zverev at 94% to advance. Carlos Alcaraz leads title odds on the platform. The pricing reflects strong market confidence in favorites. The event contract markets are part of Kalshi's new multi-year partnership with the US Open, which features branded prediction content on the tournament's official channels. Arthur Fils holds a 79% probability to defeat Stefanos Tsitsipas in an earlier first-round match.
These prices reveal where Kalshi's tennis liquidity actually concentrates: on heavily favored name players with obvious narratives. The 95% and 94% handles mean little without depth data, but they do show retail money flooding the easy calls while sharper markets stay thin. Traders should not treat these levels as efficient forecasts; they likely reflect asymmetric flow toward stars, not balanced information aggregation. For Kalshi, the US Open exclusivity turns these matches into marketing collateral first, price-discovery venues second.
The real test comes if a favorite stumbles early and the platform must absorb sudden selling against limited committed capital. Rival platforms are already pitching tighter tennis books to institutions; Kalshi needs to prove its Grand Slam inventory carries actual two-sided depth, not just brand placement. A repricing gap on a Gauff or Alcaraz upset would damage credibility with serious traders faster than any partner logo repairs it.
Kalshi's US Open partnership deepens a running exclusivity strategy that already locked in MLB stadium presence and now controls the only CFTC-regulated prediction market tied to a Grand Slam event.