Singles
2023 International Challenger Zhangjiagang
Champion	Térence Atmane
Runner-up	Mikalai Haliak
Score	6–1, 6–2

Marc Polmans was the defending champion^[1] but chose not to defend his title.

Térence Atmane won the title after defeating Mikalai Haliak 6–1, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	8	James McCabe	2	2r
	Q	Mikalai Haliak	6	3
								Q	Mikalai Haliak	1	2
								2	Térence Atmane	6	6
	7	Ričardas Berankis	1	6	3
	2	Térence Atmane	6	3	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	Y Bu	79	3	66
	WC	R Te	67	6	78			WC	R Te	6	6
		F Peliwo	6	3	6				F Peliwo	3	1
		Dominik Palán	2	6	2										WC	R Te	66	6	0
	Q	Leonid Sheyngezikht	4	1											8	J McCabe	78	3	6
		L Giustino	6	6					L Giustino	4	6	1
		L Saville	63	6	3			8	J McCabe	6	3	6
	8	J McCabe	77	2	6																	8	J McCabe	2	2r
	4	R Noguchi	3	6	2																	Q	M Haliak	6	3
	Q	Xiao Linang	6	4	6			Q	L Xiao	4	1
	Q	Mikalai Haliak	6	7				Q	M Haliak	6	6
		M Sasikumar	3	5											Q	M Haliak	6	6
		E Zhu	5	66											LL	Y Takahashi	4	4
		S Sakellaridis	7	78					S Sakellaridis	3	1
	Q	Cui Jie	2	2				LL	Y Takahashi	6	6
	LL	Y Takahashi	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	R Berankis	6	7
		Y Uchiyama	4	5				7	R Berankis	6	6
	Q	Liu Hanyi	4	6	3				R Strombachs	4	2
		R Strombachs	6	3	6										7	R Berankis	7	64	6
		NH Lý	5	6	6										LL	C Sinclair	5	77	1
		N Chappell	7	3	2				NH Lý	3	6	1
	LL	C Sinclair	6	3	6			LL	C Sinclair	6	1	6
	3	K Uchida	3	6	4																	7	R Berankis	1	6	3
	5	L Tu	6	6																		2	T Atmane	6	3	6
		P Sekulic	3	4				5	L Tu	6	6
	Alt	R Statham	6	3	77			Alt	R Statham	2	2
	WC	H Li	3	6	62										5	L Tu	3	5
		A Weber	2	2											2	T Atmane	6	7
	Alt	Alafia Ayeni	6	6				Alt	A Ayeni	1	6	2
	WC	F Sun	6	61	69			2	T Atmane	6	3	6
	2	T Atmane	4	77	711

References

External links

• Main draw
• Qualifying draw