Singles
2017 Koblenz Open
Champion	Ruben Bemelmans
Runner-up	Nils Langer
Score	6–4, 3–6, 7–6(7–0)

This was the first edition of the tournament.

Ruben Bemelmans won the title after defeating Nils Langer 6–4, 3–6, 7–6^(7–0) in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Jeremy Jahn	1	1
		Ruben Bemelmans	6	6
									Ruben Bemelmans	6	3	77
								Q	Nils Langer	4	6	60
	Q	Nils Langer	6	6
	WC	Daniel Masur	1	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	L Rosol	4	6	6
		L Đere	6	2	4			1	L Rosol	65	5
		F Krajinović	4	6	6				F Krajinović	77	7
	LL	A Ungur	6	3	4											F Krajinović	64	3r
	WC	Florian Broska	1	3												J Jahn	77	2
		Jeremy Jahn	6	6					J Jahn	6	6
	Q	M Przysiężny	6	6				Q	M Przysiężny	4	3
	5	M Copil	4	3																			J Jahn	1	1
	Q	Y Marti	6	77																			R Bemelmans	6	6
		M Marterer	2	61				Q	Y Marti	711	2	4
	Q	F Horanský	5	5					K de Schepper	69	6	6
		K de Schepper	7	7												K de Schepper	4	4
	Alt	G Barrère	6	2	6											R Bemelmans	6	6
		F Gaio	4	6	2			Alt	G Barrère	2	2
		R Bemelmans	6	6					R Bemelmans	6	6
	7	M Trungelliti	4	2

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	T Gabashvili	4	6	6
	WC	B Hassan	6	3	1			6	T Gabashvili	3	6	3
	WC	J Choinski	3	5					D Brands	6	1	6
		D Brands	6	7												D Brands	60	2
		Y Reuter	1	3											Q	N Langer	77	6
	Q	N Langer	6	6				Q	N Langer	6	6
		F Škugor	4	65				4	A Giannessi	2	0
	4	A Giannessi	6	77																		Q	N Langer	6	6
	8	G Žemlja	2	5																		WC	D Masur	1	3
	PR	C-M Stebe	6	7				PR	C-M Stebe	77	7
		A Golubev	0	3					M Arévalo	61	5
		M Arévalo	6	6											PR	C-M Stebe	4	7	4
	WC	D Masur	77	6											WC	D Masur	6	5	6
	Alt	Y Mertens	64	3				WC	D Masur	6	6
	LL	A Bossel						2/Alt	G Andreozzi	1	2
	2/Alt	G Andreozzi	w/o

References

• Main Draw
• Qualifying Draw