2018 International Challenger Zhangjiagang

The 2018 International Challenger Zhangjiagang was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Zhangjiagang, China between 3 and 9 September 2018.

Seeds

 * 1 Rankings are as of 27 August 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇳 He Yecong
 * 🇨🇳 Te Rigele
 * 🇨🇳 Wu Yibing
 * 🇨🇳 Zhang Zhizhen

The following players received entry from the qualifying draw:
 * Frederico Ferreira Silva
 * 🇦🇺 Dayne Kelly
 * 🇫🇷 Tristan Lamasine
 * 🇯🇵 Yuta Shimizu

The following player received entry as a lucky loser:
 * 🇯🇵 Yusuke Takahashi

Singles

 * 🇯🇵 Yasutaka Uchiyama def. Jason Jung 6–2, 6–2.

Doubles

 * 🇨🇳 Gong Maoxin / 🇨🇳 Zhang Ze def. 🇦🇺 Bradley Mousley / 🇦🇺 Akira Santillan walkover.