Singles
2023 Kobe Challenger
Champion	Duje Ajduković
Runner-up	Sho Shimabukuro
Score	6–4, 6–2

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

Duje Ajduković won the title after defeating Sho Shimabukuro 6–4, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Duje Ajduković	7	5	6
		Wu Tung-lin	5	7	3
									Duje Ajduković	6	6
								5	Sho Shimabukuro	4	2
	3	Luca Nardi	2	2
	5	Sho Shimabukuro	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Rodionov	77	6
	Q	Y Uchiyama	65	4				1	J Rodionov	6	2	6
	WC	T Ito	66	3					Y Shimizu	1	6	1
		Y Shimizu	78	6											1	J Rodionov	65	6	1
		D Ajduković	6	6												D Ajduković	77	4	6
		M Efstathiou	2	2					D Ajduković	6	5	6
		Y-h Hsu	4	3				LL	R Noguchi	0	7	3
	LL	R Noguchi	6	6																			D Ajduković	7	5	6
	4	B Hassan	0	6	6																		T-l Wu	5	7	3
		J McCabe	6	3	2			4	B Hassan	3	4
		D Sweeny	3	62					T-l Wu	6	6
		T-l Wu	6	77												T-l Wu	6	6
	WC	Renta Tokuda	6	1	2											J Jung	4	3
	Q	Y-s Chung	4	6	6			Q	Y-s Chung	77	3	1r
		J Jung	6	77					J Jung	62	6	4
	8	Z Kolář	4	64

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	M Polmans	6	7
	Q	Andrew Fenty	2	5				6	M Polmans	6	77
		A Martin	4	4					G Blancaneaux	4	63
		G Blancaneaux	6	6											6	M Polmans	2	4
	Q	A Holmgren	6	6											3	L Nardi	6	6
		M Echargui	4	3				Q	A Holmgren	3	6	5
	WC	T Ichikawa	5	2				3	L Nardi	6	3	7
	3	L Nardi	7	6																		3	L Nardi	2	2
	5	S Shimabukuro	6	77																		5	S Shimabukuro	6	6
		K Uchida	1	65				5	S Shimabukuro	6	77
	Alt	O Jasika	3	1					S-c Hong	4	64
		S-c Hong	6	6											5	S Shimabukuro	6	6
	Q	K Ivanovski	1	0r											2	S Mochizuki	3	3
	LL	Y Bai	6	4				LL	Y Bai	3	2
	Q	G Fonio	6	2	3			2	S Mochizuki	6	6
	2	S Mochizuki	4	6	6

References

External links

• Main draw
• Qualifying draw