Singles
2018 Engie Open de Biarritz
Champion	Tamara Korpatsch
Runner-up	Timea Bacsinszky
Score	6–2, 7–5

Mihaela Buzărnescu was the defending champion but chose not to participate.

Tamara Korpatsch won the title, defeating Timea Bacsinszky in the final, 6–2, 7–5.

Seeds

Draw

Finals

	Semifinals							Final
	WC	Timea Bacsinszky	7	6
	SE	Paula Ormaechea	5	3
								WC	Timea Bacsinszky	2	5
									Tamara Korpatsch	6	7
		Tereza Smitková	4	5
		Tamara Korpatsch	6	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	C Witthöft	6	77
		E Kostova	4	62				1	C Witthöft	65	62
	WC	M Georges	3	3				Q	R Šramková	77	77
	Q	R Šramková	6	6											Q	R Šramková	2	2r
	WC	T Bacsinszky	5	6	6										WC	T Bacsinszky	6	1
		K Zavatska	7	3	2			WC	T Bacsinszky	6	7
		V Ivakhnenko	4	4				5	I Bara	2	5
	5	I Bara	6	6																		WC	T Bacsinszky	7	6
	3	Y Bonaventure	77	6																		SE	P Ormaechea	5	3
		J Ponchet	62	1				3	Y Bonaventure	7	63	78
		Ç Büyükakçay	6	6					Ç Büyükakçay	5	77	66
		J Čepelová	4	3											3	Y Bonaventure	4	4
		V Cepede Royg	6	4	4										SE	P Ormaechea	6	6
	SE	P Ormaechea	4	6	6			SE	P Ormaechea	7	6
		E Gorgodze	6	68	6				E Gorgodze	5	4
	8	I Khromacheva	3	710	0

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	C Perrin	6	2	6
	PR	A Panova	3	6	2			7	C Perrin	3	6	3
	Q	M Partaud	6	3	2				T Smitková	6	4	6
		T Smitková	1	6	6											T Smitková	7	6
		A Bolsova Zadoinov	4	6	6										4	A Kalinina	5	3
		K von Deichmann	6	2	3				A Bolsova Zadoinov	6	5	2
	WC	C Paquet	0	3				4	A Kalinina	4	7	6
	4	A Kalinina	6	6																			T Smitková	4	5
	6	L Siegemund	6	4	60																		T Korpatsch	6	7
	Q	I Shinikova	3	6	77			Q	I Shinikova	4	6	3
	SE	K Zimmermann	6	6				SE	K Zimmermann	6	2	6
		M Di Giuseppe	4	3											SE	K Zimmermann	2	3
		T Korpatsch	7	7												T Korpatsch	6	6
	WC	H Tan	5	5					T Korpatsch	6	6
	Q	O Sáez Larra	6	3	4			Q	O Sáez Larra	1	2
	2	S Sharipova	2	6	2r

References

• Main Draw