| 2018 International Challenger Zhangjiagang | ||||
|---|---|---|---|---|
| Date | 3–9 September | |||
| Edition | 2nd | |||
| Surface | Hard | |||
| Location | Zhangjiagang, China | |||
| Champions | ||||
| Singles | ||||
 Yasutaka Uchiyama | ||||
| Doubles | ||||
 Gong Maoxin /Zhang Ze | ||||
| ||||
The2018International Challenger Zhangjiagang was a professionaltennis tournament played onhard courts. It was the second edition of the tournament which was part of the2018 ATP Challenger Tour. It took place inZhangjiagang, China between 3 and 9 September 2018.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 TPE | Jason Jung | 115 | 1 |
| JPN | Tatsuma Ito | 163 | 2 |
| CHN | Zhang Ze | 168 | 3 |
| JPN | Go Soeda | 176 | 4 |
 CAN | Filip Peliwo | 185 | 5 |
 SRB | Miomir Kecmanović | 196 | 6 |
| JPN | Hiroki Moriya | 197 | 7 |
 KAZ | Alexander Bublik | 203 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Yasutaka Uchiyama def.Jason Jung 6–2, 6–2.Gong Maoxin /Zhang Ze def.
Bradley Mousley /Akira Santillan walkover.
