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Michael Zheng defeated Yunchaokete Bu 6-3, 2-6, 6-2, 6-3 — US Open 2026 R64.
Yunchaokete Bu and Michael Zheng are level at 1–1 across 2 recorded meetings.
A third-round place at the US Open came out of the return game, where Zheng broke six times in 17 return games to Bu's three. The one set he surrendered was answered by three breaks in the next, including game 7 for 5-2, with the winner count reading 47-26 across two and a half hours. Bu won 72% of his first-serve points and still lost the points count, undone by eight double faults and 5 of 11 break points saved. Zheng, who put down Marozsan in the opener, has now dropped one set in New York.