Singles
2015 Powiat Poznański Open
Champion	Petra Cetkovská
Runner-up	Jeļena Ostapenko
Score	3–6, 7–5, 6–2

Kristína Kučová was the defending champion, but lost to Stephanie Vogt in the first round.

Petra Cetkovská won the title by defeating Jeļena Ostapenko in the final, 3–6, 7–5, 6–2.

Seeds

Main draw

Finals

	Semifinals							Final
	Q	Martina Borecká	6	66	2
		Petra Cetkovská	3	78	6
									Petra Cetkovská	3	7	6
								4	Jeļena Ostapenko	6	5	2
	4	Jeļena Ostapenko	6	2	6
	2	Kiki Bertens	3	6	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	S Karatantcheva	6	7
		K Piter	2	5				1	S Karatantcheva	0	6	62
	Q	M Borecká	4	7	6			Q	M Borecká	6	2	77
		P Özgen	6	5	2										Q	M Borecká	1	77	6
	WC	N Vaidišová	62	6	7										WC	N Vaidišová	6	61	1
	Q	C Dinu	77	3	5			WC	N Vaidišová	6	0	6
		S Vogt	6	2	6				S Vogt	4	6	3
	5	K Kučová	4	6	1																	Q	M Borecká	6	66	2
	3	R Hogenkamp	77	6																			P Cetkovská	3	78	6
		A Schäfer	63	2				3	R Hogenkamp	77	7
		S Cîrstea	6	7					S Cîrstea	64	5
	WC	N Siedliska	1	5											3	R Hogenkamp	4	6	2
		P Cetkovská	6	2	6											P Cetkovská	6	1	6
		S Shapatava	4	6	4				P Cetkovská	6	79
	WC	M Fręch	78	2	64			7	R Oprandi	3	67
	7	R Oprandi	66	6	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	O Jabeur	6	2	6
		F Molinero	1	6	1			6	O Jabeur	7	6
		M Sakkari	6	6					M Sakkari	5	1
	Q	E Alexandrova	1	3											6	O Jabeur	3	4
		A Brianti	1	6	3										4	J Ostapenko	6	6
		T Mrdeža	6	4	6				T Mrdeža	6	3	4
	WC	N Suk	2	1				4	J Ostapenko	3	6	6
	4	J Ostapenko	6	6																		4	J Ostapenko	6	2	6
	8	B Krejčíková	6	6																		2	K Bertens	3	6	3
		A Vrljić	1	1				8	B Krejčíková	77	6
		A Amanmuradova	2	2					K Stewart	64	2
		K Stewart	6	6											8	B Krejčíková	6	1	1
	Q	C Paquet	2	6	3										2	K Bertens	3	6	6
		R-L Jani	6	2	6				R-L Jani	5	61
		Y Bonaventure	6	1	2			2	K Bertens	7	77
	2	K Bertens	3	6	6

References

• Main draw Archived 2015-07-23 at the Wayback Machine