Kristina Liutova became the first player born in the 2010s to compete in a major singles main draw at the 2026 US Open.
Her appearance was recorded in the women's singles tournament. The milestone concerns participation in a Grand Slam singles main draw, not winning a match, reaching a particular round, or appearing in a junior event.
The 2010s means the years 2010 through 2019. Liutova's inclusion therefore marked a generational milestone in professional tennis: a player from that decade had reached the main draw of one of the sport's four major tournaments.
This fact is easy to confuse with the tournament's junior records. The US Open also held boys' and girls' singles events, where competitors are expected to be teenagers. Liutova's distinction instead belongs to the senior women's singles draw, which had 128 players, including qualifiers and wild cards.