Updated 4 weeks ago
Every market on this event is off the board on Polymarket, with no outcome recorded yet. Prices below are the last traded values, not live odds.
What happened
Resolved 2026-09-09
Ben Shelton defeated defending champion Carlos Alcaraz 6-7(5), 6-1, 6-3, 1-6, 7-6(10/7) in a five-set US Open quarter-final that finished at 3:33 a.m., the latest finish in tournament history. The American's upset victory, marked by his powerful serving and Alcaraz's 53 unforced errors, advanced Shelton to the semi-finals and delivered one of the biggest wins of his career.
Before US Open ATP: Ben Shelton vs Carlos Alcaraz ended, the final Polymarket odds were: US Open ATP: Ben Shelton vs Carlos Alcaraz Total Sets: O/U 3.5: 100%, US Open ATP: Ben Shelton vs Carlos Alcaraz Set 2 Winner: 100%, US Open ATP: Ben Shelton vs Carlos Alcaraz: 100%, US Open ATP: Ben Shelton vs Carlos Alcaraz Match O/U 38.5: 100%, US Open ATP: Ben Shelton vs Carlos Alcaraz Total Sets: O/U 4.5: 100%. These probabilities were derived from real-money trading right up until the market closed.
No — this market has ended on Polymarket. PredictMarketCap tracks thousands of active markets across Polymarket, Kalshi, Limitless & Predict.fun if you're looking for what's live now.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.
