Kalshi traders price Zverev at 57% to edge Shelton in US Open final
Kalshi traders are pricing Alexander Zverev as a 57% favorite over Ben Shelton in the 2026 US Open men's singles final on Sunday. The odds appeared on Kalshi Sports' social feed and the US Open's official website. Shelton is bidding to end a 23-year American Grand Slam title drought. Zverev's pricing follows his surge to 44% title favorite after Carlos Alcaraz's elimination. The final marks the culmination of Kalshi's exclusive partnership with the USTA for Grand Slam event contracts.
The 57% price is a snapshot of thin books, not settled value. Kalshi's tennis markets have repeatedly gapped on new information: Shelton's quarterfinal upset turned $888,234 into nearly $4 million, and Alcaraz's elimination spiked Zverev to 44% with no intermediate price discovery. Novig's $125 million debut week and Polymarket's established pools are pulling two-sided liquidity toward tighter spreads.
Traders should treat this percentage as indicative until bid-ask spreads and order book depth prove otherwise. The same thin liquidity that created the Alcaraz windfall now leaves Zverev's final price vulnerable to a single match point. Kalshi's Catalist streaming deal converts viewers, but it does not deepen the book. The real question is whether traders come for the court-side badge and stay for execution quality.