In 2017, Wu reached the semifinals in both boys' singles and doubles at the Australian Open, and won both the boys' singles and doubles champions (with Chinese Taipei's Hsu Yu-hsiou) at the US Open, thus became the first Chinese male to win a Grand Slam title.[6]
Professional career
2017–2018: ATP and Masters debuts, first ATP Tour win
In September 2017 he made his ATP debut at the 2017 Chengdu Open as a wildcard.
In October 2017 he made his Masters debut at the Shanghai Masters as a wildcard.
He did not compete from March 2019 to December 2021 due to injury.
2022: Historic major debut, top 125
In 2022, he won three Challenger titles in the United States, including back-to-back trophy runs in July in Rome, Georgia and Indianapolis, Indiana. As a result, he reached the top 200 at a career-high of No. 174, on 25 July 2022.[8] His four career total Challenger titles made him the most decorated Chinese player in the circuit's history.[9]
At the US Open he qualified to make his Grand Slam debut.[10] He became the first male Chinese in the Open Era to qualify at the US Open, winning his last qualifying match before Zhang Zhizhen also won his last match later in the same day.[11][12][13][14] Wu won his first round match against 31st seed Nikoloz Basilashvili, becoming the first male Chinese player to win a US Open match in the Open era and a Grand Slam match in 63 years since Mei Fu Chi at Wimbledon 1959.[15][16] He beat fellow qualifier Nuno Borges in five sets in the second round to become the first Chinese male player to reach the third round of any Grand Slam event since Kho Sin-Kie in 1946 Wimbledon. He also became the first Chinese man ever to reach the third round in the tournament history (since 1881).[17][18] As a result, he moved 43 positions up to world No. 131 in the rankings on 12 September 2022. He then lost to world No. 1, Daniil Medvedev, in the third round.
He finished his year ranked No. 119, 1000 spots higher than his ranking at the end of the 2021 season.
2023: First Chinese ATP champion in the Open Era, top 60
Following a final showing in the Cleveland Challenger, Wu made his debut in the top 100, at world No. 97 on 6 February 2023, becoming the second Chinese male player to do so after Zhang Zhizhen four months earlier.[20][21]
In Dallas, Wu defeated Michael Mmoh in the first round, then claimed the biggest win of his career by defeating third seed Denis Shapovalov in the second round to reach his first ATP Tour-level quarterfinal.[22] He then beat Adrian Mannarino to become the first Chinese player since Pan Bing in 1995 to reach an ATP Tour-level semifinal, and only the second ever player from China to do so.[23] By defeating top seed and world No. 8 Taylor Fritz in the semifinals, he became the first Chinese male ever to defeat a top 10 ranked player and to make an ATP Tour level final in the Open Era.[24][25][26] He went one step further to win the title defeating John Isner, after saving four championship points in the match, and become the first Chinese man in the Open Era to win an ATP Tour title. In doing so, he became the highest-ranked Chinese player in the history of the ATP rankings, and overtook Zhang to become the first Chinese player to enter the top 60 on 13 February 2023.[26][27] He received a wildcard for the 2023 BNP Paribas Open where he defeated Jaume Munar for his first win at this tournament.[28] At the 2023 Miami Open, he recorded also his first win at this Masters against Kyle Edmund.[1]
Wu made his return from an injury that halted his 2023 season at the challenger in Jinan, where despite being inactive for the majority of the season, he won the title, defeating Rio Noguchi in the final.
He then received a wildcard for Shanghai, and beat Sumit Nagal and 25th seed Nicolás Jarry to become the second-ever Chinese man to reach the third round of Shanghai, where he lost to Carlos Alcaraz.