2023 Koblenz Open – Singles

Tomáš Macháč was the defending champion but chose not to defend his title.

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

Main article: 2023 Koblenz Open

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

Seeds

1. Zhang Zhizhen (second round)
2. Roman Safiullin (champion)
3. Vasek Pospisil (final)
4. Maximilian Marterer (quarterfinals, retired)
5. Hugo Grenier (second round)
6. Liam Broady (second round)
7. Alexandre Müller (quarterfinals)
8. Gijs Brouwer (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

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

External links

• Main draw
• Qualifying draw