Singles
2017 International Challenger Zhangjiagang
Champion	Jason Jung
Runner-up	Zhang Ze
Score	6–4, 2–6, 6–4

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.

Seeds

Draw

Finals

	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

Top half

	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

Bottom half

	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

References

• Main Draw
• Qualifying Draw