Singles
2023 Koblenz Open
Champion	Roman Safiullin
Runner-up	Vasek Pospisil
Score	6–2, 7–5

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

Roman Safiullin won the title after defeating Vasek Pospisil 6–2, 7–5 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Zdeněk Kolář	1	3
	3	Vasek Pospisil	6	6
								3	Vasek Pospisil	2	5
								2	Roman Safiullin	6	7
	Alt	Raphaël Collignon	7	3	0
	2	Roman Safiullin	5	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	Zh Zhang	6	5	6
	WC	H Squire	1	7	4			1	Zh Zhang	6	3	3
		Z Kolář	6	6					Z Kolář	3	6	6
		A Bellier	2	4												Z Kolář	77	4	77
		J Choinski	6	1	6										7	A Müller	65	6	63
	Q	D Yevseyev	4	6	2				J Choinski	3	77	5
	WC	MH Rehberg	4	4				7	A Müller	6	64	7
	7	A Müller	6	6																			Z Kolář	1	3
	3	V Pospisil	7	6																		3	V Pospisil	6	6
		Em Nava	5	2				3	V Pospisil	78	77
	Q	M Rosenkranz	4	6	6			Q	M Rosenkranz	66	62
		L Lokoli	6	4	3										3	V Pospisil	6	6
	Q	A Hoang	66	6	2										Alt	L Wessels	4	2
	Alt	L Wessels	78	3	6			Alt	L Wessels	6	6
	Alt	Lucas Gerch	2	2				5	H Grenier	4	3
	5	H Grenier	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	G Brouwer	7	62	3
	Alt	R Collignon	5	77	6			Alt	R Collignon	7	6
		L Nardi	69	3					H Laaksonen	5	4
		H Laaksonen	711	6											Alt	R Collignon	5
	Alt	D Masur	5	3											4	M Marterer	2r
		A Andreev	7	6					A Andreev	3	3
	Q	V Sachko	5	2				4	M Marterer	6	6
	4	M Marterer	7	6																		Alt	R Collignon	7	3	0
	6	L Broady	77	6																		2	R Safiullin	5	6	6
	Alt	R Haase	62	1				6	L Broady	2	3
	Q	A Vatutin	78	6				Q	A Vatutin	6	6
	Q	J Härteis	66	1											Q	A Vatutin	3	6	2
	WC	M Topo	4	77	66										2	R Safiullin	6	1	6
		A Escoffier	6	65	78				A Escoffier	3	6	62
		G Blancaneaux	7	3	1			2	R Safiullin	6	4	77
	2	R Safiullin	5	6	6

References

External links

• Main draw
• Qualifying draw