Singles
2023 Shanghai Challenger
Champion	Christopher O'Connell
Runner-up	Yosuke Watanuki
Score	6–3, 7–5

Yasutaka Uchiyama was the defending champion^[1] but retired from his second round match against Christopher O'Connell.

O'Connell won the title after defeating Yosuke Watanuki 6–3, 7–5 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Christopher O'Connell	6	6
		Li Tu	2	4
								1	Christopher O'Connell	6	7
								2	Yosuke Watanuki	3	5
	4	Shang Juncheng	4	2
	2	Yosuke Watanuki	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	C O'Connell	6	6
		L Saville	4	0				1	C O'Connell	77	4
	WC	Liu Hanyi	1	64					Y Uchiyama	63	1r
		Y Uchiyama	6	77											1	C O'Connell	6	6
	Q	Mu Tao	3	6	5										Q	Y Bai	0	2
	Q	Y Bai	6	4	7			Q	Y Bai	6	6
		Dominik Palán	6	6					D Palán	3	2
	8	R Noguchi	2	4																		1	C O'Connell	6	6
	3	M Polmans	1	3																			L Tu	2	4
		F Peliwo	6	6					F Peliwo	65	2
		P Sekulic	1	0					L Tu	77	6
		L Tu	6	6												L Tu	78	6
		A Bellier	6	7												A Bellier	66	2
	Q	A Kadhe	4	5					A Bellier	77	3	6
		O Jasika	3	61				7	T Atmane	65	6	4
	7	T Atmane	6	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	Y Bu	6	6
	WC	R Te	2	4				6	Y Bu	1	4
		H Moriya	1	2					L Giustino	6	6
		L Giustino	6	6												L Giustino	1	4
	Alt	M Sasikumar	3	4											4	J Shang	6	6
		D Sweeny	6	6					D Sweeny	4	3
	LL	R Strombachs	4	64				4	J Shang	6	6
	4	J Shang	6	77																		4	J Shang	4	2
	5	T-l Wu	77	3	6																	2	Y Watanuki	6	6
	WC	F Sun	65	6	2			5	T-l Wu	6	1	2
	Q	NH Lý	5	6	6			Q	NH Lý	3	6	6
	Q	N Chappell	7	4	0										Q	NH Lý	2	0
	Q	Alafia Ayeni	2	6	3										2	Y Watanuki	6	6
	SE	Mikalai Haliak	6	3	6			SE	M Haliak	1	1
		A Bolt	4	0				2	Y Watanuki	6	6
	2	Y Watanuki	6	6

References

External links

• Main draw
• Qualifying draw