Singles
2023 Seoul Open Challenger
Champion	Bu Yunchaokete
Runner-up	Aleksandar Vukic
Score	7–6(7–4), 6–4

Li Tu was the defending champion^[1] but lost in the first round to Emilio Gómez.

Bu Yunchaokete won the title after defeating Aleksandar Vukic 7–6^(7–4), 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Bu Yunchaokete	77	6
	Q	Yasutaka Uchiyama	64	4
									Bu Yunchaokete	77	6
								7	Aleksandar Vukic	64	4
	WC	Chung Yun-seong	65	1
	7	Aleksandar Vukic	77	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	M Purcell	6	6
	Q	J-s Nam	3	4				1	M Purcell	1	3
		S-c Hong	6	6					S-c Hong	6	6
	Q	T Ito	3	2												S-c Hong	4	4
		A Çelikbilek	6	3	1											Y Bu	6	6
		Y Bu	3	6	6				Y Bu	6	61	6
		L Tu	64	5				5	E Gómez	4	77	3
	5	E Gómez	77	7																			Y Bu	77	6
	4	J Duckworth	77	1	6																	Q	Y Uchiyama	64	4
	Q	D-h Lee	64	6	1			4	J Duckworth	4	2
	Q	M Sasikumar	4	713	0			Q	Y Uchiyama	6	6
	Q	Y Uchiyama	6	611	6										Q	Y Uchiyama	6	4	6
		M Polmans	6	6											8	D Kudla	3	6	1
	WC	J-m Lee	3	2					M Polmans	7	4	3
	PR	T-S Kwiatkowski	1	0				8	D Kudla	5	6	6
	8	D Kudla	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	R Hijikata	6	77
		S Shimabukuro	4	63				6	R Hijikata	6	6
	Alt	E Donskoy	4	6	6			Alt	E Donskoy	3	4
		B Holt	6	4	2										6	R Hijikata	2	3
	WC	Y-s Chung	6	6											WC	Y-s Chung	6	6
	Q	P Gojowczyk	2	3				WC	Y-s Chung	6	6
	WC	Hy Chung	2	4				3	J Thompson	4	3
	3	J Thompson	6	6																		WC	Y-s Chung	65	1
	7	A Vukic	77	77																		7	A Vukic	77	6
		L Harris	63	60				7	A Vukic	6	65	6
		C İlkel	77	2	4				R Berankis	3	77	1
		R Berankis	62	6	6										7	A Vukic	7	6
		G Diallo	6	6											2	C Eubanks	5	3
		Y-h Hsu	2	3					G Diallo	6	3	2
		Y Shimizu	3	6	5			2	C Eubanks	2	6	6
	2	C Eubanks	6	3	7

References

External links

• Main draw
• Qualifying draw