Singles
2018 Poznań Open
Final
Champion	Hubert Hurkacz
Runner-up	Taro Daniel
Score	6–1, 6–1
Events
Singles Doubles
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Alexey Vatutin was the defending champion but lost in the quarterfinals to Hubert Hurkacz.

Hurkacz won the title after defeating Taro Daniel 6–1, 6–1 in the final.

	Semifinals							Final
	1	Taro Daniel	78	6
	6	Quentin Halys	66	3
								1	Taro Daniel	1	1
									Hubert Hurkacz	6	6
		Alessandro Giannessi	4	6	3
		Hubert Hurkacz	6	3	6

	First round							Second round							Quarterfinals							Semifinals
	1	T Daniel	7	6
		M Kecmanović	5	3				1	T Daniel	6	6
	Alt	T Brkić	1	4				Q	M Bourgue	4	2
	Q	M Bourgue	6	6											1	T Daniel	6	7
		F Bagnis	6	7												F Bagnis	4	5
		J Kovalík	3	5					F Bagnis	6	77
		R Quiroz	2	7	3			5/WC	M Granollers	1	64
	5/WC	M Granollers	6	5	6																	1	T Daniel	78	6
	3	M Kližan	6	6																		6	Q Halys	66	3
	Alt	M Krueger	2	2				3	M Kližan	3	3
		O Otte	2	6	3			Q	A Arnaboldi	6	6
	Q	A Arnaboldi	6	3	6										Q	A Arnaboldi	1	63
	Q	A Escoffier	6	6											6	Q Halys	6	77
		A Santillan	4	3				Q	A Escoffier	63	7	4
	WC	VV Cornea	1	4				6	Q Halys	77	5	6
	6	Q Halys	6	6

	First round							Second round							Quarterfinals							Semifinals
	7	H Laaksonen	6	6
		J Kubler	4	2				7	H Laaksonen	0	1
		D Novak	3	2					A Balázs	6	6
		A Balázs	6	6												A Balázs	4	5
	WC	Paweł Ciaś	3	6	4											A Giannessi	6	7
		V Estrella Burgos	6	1	6				V Estrella Burgos	6	3	3
		A Giannessi	6	6					A Giannessi	4	6	6
	4	P Sousa	2	3																			A Giannessi	4	6	3
	8	A Vatutin	6	6																			H Hurkacz	6	3	6
		K de Schepper	2	4				8	A Vatutin	77	4	6
	Q	Jeremy Jahn	6	2	6			Q	J Jahn	64	6	3
		K Majchrzak	3	6	0										8	A Vatutin	3	2
	WC	Michał Dembek	64	3												H Hurkacz	6	6
		M Donati	77	6					M Donati	3	77	3
		H Hurkacz	6	7					H Hurkacz	6	65	6
	2	G Andreozzi	1	5

• Main draw
• Qualifying draw