The 2019 International Challenger Zhangjiagang was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Zhangjiagang, China between 18 and 24 March 2019.
Singles main-draw entrants
Seeds Country Player Rank1 SeedBrayden Schnur1061James Duckworth1662Kwon Soon-woo1703Hiroki Moriya1744Yūichi Sugita1765Lorenzo Giustino1896Blaž Rola1997Zhang Ze2018Go Soeda2059Marc Polmans21010Viktor Galović21311Mohamed Safwat21612Stefano Napolitano22913Filip Peliwo23314Mathias Bourgue23915Lee Duck-hee24416Uladzimir Ignatik24517 1 Rankings are as of 4 March 2019.
Other entrants The following players received wildcards into the singles main draw: Gao Xin He Yecong Hua Runhao Xia Zihao Zhang Zhizhen
The following player received entry into the singles main draw using a protected ranking: Daniel Nguyen
The following player received entry into the singles main draw as an alternate: Makoto Ochi
The following players received entry into the singles main draw using their ITF World Tennis Ranking: Baptiste Crepatte Ivan Gakhov Kim Cheong-eui Karim-Mohamed Maamoun
The following players received entry from the qualifying draw: Harri Heliövaara Sun Fajing
Champions
Singles
Marc Polmans def. Lorenzo Giustino 6–4, 4–6, 7–6(7–4).
Doubles
Max Purcell / Luke Saville def. Sriram Balaji / Hans Hach Verdugo 6–2, 7–6(7–5).
References