2023 International Challenger Zhangjiagang – Singles

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

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

Main article: 2023 International Challenger Zhangjiagang

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

Seeds

1. Bu Yunchaokete (first round)
2. Térence Atmane (champion)
3. Kaichi Uchida (first round)
4. Rio Noguchi (first round)
5. Li Tu (quarterfinals)
6. Jason Jung (withdrew)
7. Ričardas Berankis (semifinals)
8. James McCabe (semifinals, retired)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

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	J Cui	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