Singles
2018 St. Petersburg Ladies' Trophy
Champion	Petra Kvitová
Runner-up	Kristina Mladenovic
Score	6–1, 6–2
Draw	28 (4 Q / 4 WC )
Seeds	8

Kristina Mladenovic was the defending champion, but lost in the final to unseeded Petra Kvitová, 1–6, 2–6. As a result, Kvitová became the first left-handed player to win a singles title in Russia. She was also the first wildcard to win the event.

Seeds

The top four seeds received a bye into the second round.

Draw

Finals

	Semifinals							Final
	8	Daria Kasatkina	6	3	2
	4	Kristina Mladenovic	3	6	6
								4	Kristina Mladenovic	1	2
								WC	Petra Kvitová	6	6
	5	Julia Görges	5	6	2
	WC	Petra Kvitová	7	4	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	C Wozniacki	6	6
	WC	A Potapova	6	6				WC	A Potapova	0	1
		T Maria	2	4											1	C Wozniacki	62	3
		M Barthel	3	5											8	D Kasatkina	77	6
		A Cornet	6	7					A Cornet	2	1
	Q	V Kužmová	6	4	1			8	D Kasatkina	6	6
	8	D Kasatkina	1	6	6																	8	D Kasatkina	6	3	2
																						4	K Mladenovic	3	6	6
								4	K Mladenovic	6	6
		S Cîrstea	5	2					D Cibulková	4	4
		D Cibulková	7	6											4	K Mladenovic	6	6
		D Vekić	3	6	4											K Siniaková	4	3
		K Siniaková	6	2	6				K Siniaková	79	7
		E Makarova	6	6					E Makarova	67	5
	6	A Pavlyuchenkova	4	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	J Görges	6	77
		M Sakkari	2	65				5	J Görges	7	6
	Q	R Vinci	6	6				Q	R Vinci	5	0
	Q	T Martincová	2	2											5	J Görges	6	6
		T Bacsinszky	4	3											Q	E Rybakina	3	3
	Q	E Rybakina	6	6				Q	E Rybakina	4	78	77
								3	C Garcia	6	66	65
																						5	J Görges	5	6	2
	7/WC	E Vesnina	2	0																		WC	P Kvitová	7	4	6
	WC	P Kvitová	6	6				WC	P Kvitová	6	1	6
		I-C Begu	77	6					I-C Begu	3	6	1
	LL	A Petkovic	65	1											WC	P Kvitová	6	6
	WC	V Zvonareva	6	0											2	J Ostapenko	0	2
		K Bertens	4	0r				WC	V Zvonareva	66	3
								2	J Ostapenko	78	6

Qualifying

Qualifying draw

First qualifier

	First round							Second round							Qualifying competition
	1	Kristýna Plíšková	6	6
		Başak Eraydın	0	2
								1	Kristýna Plíšková	6	4	4
									Tereza Martincová	3	6	6
		Tereza Martincová	6	6
	WC	Anastasia Frolova	3	1
																Tereza Martincová	6	5	6
																Vera Lapko	4	7	1
		Viktoriya Tomova	2	6	1
		Vera Lapko	6	4	6
									Vera Lapko	7	6
								5	Océane Dodin	5	4
	PR	Bojana Jovanovski Petrović	4	3
	5	Océane Dodin	6	6

Second qualifier

	First round							Second round							Qualifying competition
	2	Natalia Vikhlyantseva	6	6
		Valentyna Ivakhnenko	2	1
								2	Natalia Vikhlyantseva	6	6
									Jana Čepelová	3	2
		Jana Čepelová	710	2	6
		Sara Errani	68	6	3
															2	Natalia Vikhlyantseva	2	5
																Viktória Kužmová	6	7
	WC	Amina Anshba	4	2
		Viktória Kužmová	6	6
									Viktória Kužmová	6	3	6
									Dayana Yastremska	3	6	4
		Dayana Yastremska	4	6	6
	7	Ekaterina Alexandrova	6	3	2

Third qualifier

	First round							Second round							Qualifying competition
	3	Heather Watson	3	4
		Roberta Vinci	6	6
									Roberta Vinci	6	6
									Danka Kovinić	1	2
		Jasmine Paolini	4	6	2
		Danka Kovinić	6	3	6
																Roberta Vinci	6	4	6
															8	Andrea Petkovic	1	6	3
		Polina Monova	6	6
	WC	Valeriya Pogrebnyak	4	0
									Polina Monova	3	2
								8	Andrea Petkovic	6	6
		Anna Kalinskaya	3	7	2
	8	Andrea Petkovic	6	5	6

Fourth qualifier

	First round							Second round							Qualifying competition
	4	Kirsten Flipkens	2	0
		Deborah Chiesa	6	6
									Deborah Chiesa	6	2	6
									Jana Fett	2	6	4
		Sesil Karatantcheva	6	3	3
		Jana Fett	3	6	6
																Deborah Chiesa	1	3
															WC	Elena Rybakina	6	6
	WC	Elena Rybakina	3	6	6
		Veronika Kudermetova	6	3	2
								WC	Elena Rybakina	6	6
									Sabina Sharipova	4	4
		Sabina Sharipova	3	77	7
	6	Lara Arruabarrena	6	64	5

References

• Main Draw
• Qualifying Draw