The US Open 2026 quarterfinals have narrowed the field on hard courts at Flushing Meadows, with top seeds like Aryna Sabalenka and Jessica Pegula advancing in the women's draw after straight-set or three-set victories, while men's results include Frances Tiafoe reaching the semifinals via a five-set comeback. Defending champion Carlos Alcaraz and Ben Shelton remain in contention alongside Alexander Zverev and others, setting up high-stakes semifinal matchups on September 10-11 that will determine finalists. Recent form, head-to-head records, and rest advantages from the schedule shape trader views on who reaches the September 12 women's and September 13 men's finals, with any late injuries or upsets in the bracket potentially shifting implied probabilities.