Singles
2017 International Challenger Zhangjiagang
Final
Champion	Jason Jung
Runner-up	Zhang Ze
Score	6–4, 2–6, 6–4
Events
Singles Doubles
International Challenger Zhangjiagang · 2018 →

This was the first edition of the tournament.

Jason Jung won the title after defeating Zhang Ze 6–4, 2–6, 6–4 in the final.

	Semifinals							Final
		Zhang Ze	6	6
	5	Hiroki Moriya	3	1
									Zhang Ze	4	6	4
									Jason Jung	6	2	6
		Jason Jung	77	3	77
	2	Go Soeda	62	6	65

	First round							Second round							Quarterfinals							Semifinals
	1/Alt	H Laaksonen	77	2	0r
		A Bega	62	6	2				A Bega	2	4
		V Vardhan	1	1					Ze Zhang	6	6
		Ze Zhang	6	6												Ze Zhang	7	6
		Shuichi Sekiguchi	6	6											6	M Safwat	5	3
		K Takeuchi	4	3					S Sekiguchi	77	1	3
	WC	C Wang	4	2				6	M Safwat	65	6	6
	6	M Safwat	6	6																			Ze Zhang	6	6
	4	Y Uchiyama	6	6																		5	H Moriya	3	1
	WC	Zh Zhang	2	1				4	Y Uchiyama	6	6
		Kim Cheong-eui	7	6					C-e Kim	3	1
		L Saville	5	4											4	Y Uchiyama	3	5
	WC	F Sun	3	2											5	H Moriya	6	7
		M Bachinger	6	6					M Bachinger	6	4	0
	Q	Miliaan Niesten	3	6	4			5	H Moriya	4	6	6
	5	H Moriya	6	4	6

	First round							Second round							Quarterfinals							Semifinals
	7	D Wu	6	6
		E Karlovskiy	3	3				7	D Wu	6	6
		A Kudryavtsev	77	65	6				A Kudryavtsev	4	3
	Q	M Matosevic	64	77	2										7	D Wu	67	3
	WC	X Gao	6	3	0											J Jung	79	6
		D Kelly	3	6	6				D Kelly	6	2	1
		J Jung	6	6					J Jung	3	6	6
	3	D-h Lee	4	1																			J Jung	77	3	77
	8	T Chen	5	3																		2	G Soeda	62	6	65
	Q	B Mousley	7	6				Q	B Mousley	4	77	64
		Y Takahashi	7	6					Y Takahashi	6	63	77
		T Niki	5	1												Y Takahashi	2	0
		Lorenzo Frigerio	77	6											2	G Soeda	6	6
	Q	Yuya Kibi	65	4					L Frigerio	1	4
		Z Li	4	2				2	G Soeda	6	6
	2	G Soeda	6	6

• Main Draw
• Qualifying Draw