Six singles players aged 21 or younger reached the fourth round of the 2026 US Open.
The group included Mirra Andreeva, Linda Noskova, Iva Jovic, Alexander Blockx, Learner Tien and Arthur Gea. They represented the younger generation in both the women’s and men’s singles draws.
Reaching the fourth round means advancing through the opening three rounds of a 128-player singles bracket. The achievement is significant because players must win several main-draw matches against internationally ranked opposition.
The list included both seeded and less-established competitors. Their progress gave the 2026 tournament a strong youth storyline alongside the title runs of experienced champions such as Elena Rybakina and Alexander Zverev.