2021 St. Petersburg Ladies' Trophy

• Daria Kasatkina def. Margarita Gasparyan, 6–3, 2–1, ret.

• Nadiia Kichenok / Raluca Olaru def. Kaitlyn Christian / Sabrina Santamaria, 2–6, 6–3, [10–8].

_{¹Qualifiers prize money is also the Round of 32 prize money.
*per team}

Country	Player	Rank1	Seed
RUS	Ekaterina Alexandrova	33	1
RUS	Veronika Kudermetova	34	2
FRA	Fiona Ferro	39	3
RUS	Svetlana Kuznetsova	41	4
RUS	Anastasia Pavlyuchenkova	43	5
LAT	Jeļena Ostapenko	51	6
FRA	Kristina Mladenovic	53	7
RUS	Daria Kasatkina	58	8

• ¹ Rankings as of March 8, 2021.^[2]

The following players received wildcards into the singles main draw:

• Margarita Gasparyan
• Daria Mishina
• Vera Zvonareva

The following player received entry into the singles main draw using a protected ranking:

• Vera Lapko

The following players received entry from the qualifying draw:

• Jaqueline Cristian
• Anastasia Gasanova
• Kamilla Rakhimova
• Arina Rodionova
• Clara Tauson
• Wang Xinyu

The following player received entry as a lucky loser:

• Çağla Büyükakçay

Before the tournament

• Belinda Bencic → replaced by Kirsten Flipkens
• Sorana Cîrstea → replaced by Aliaksandra Sasnovich
• Elise Mertens → replaced by Çağla Büyükakçay
• Yulia Putintseva → replaced by Daria Kasatkina
• Alison Riske → replaced by Katarina Zavatska
• Anastasija Sevastova → replaced by Vera Lapko
• Jil Teichmann → replaced by Viktoriya Tomova
• Patricia Maria Țig → replaced by Ana Bogdan
• Donna Vekić → replaced by Paula Badosa

• Vera Lapko (cramping)
• Margarita Gasparyan (lower-back injury)

Country	Player	Country	Player	Rank1	Seed
UKR	Nadiia Kichenok	ROU	Raluca Olaru	98	1
USA	Kaitlyn Christian	USA	Sabrina Santamaria	130	2
JPN	Makoto Ninomiya	CZE	Renata Voráčová	132	3
BLR	Lidziya Marozava	BLR	Aliaksandra Sasnovich	134	4

• ¹ Rankings as of March 8, 2021.

The following pair received a wildcard into the doubles main draw:

• Daria Mishina / Ekaterina Shalimova
• Elena Vesnina / Vera Zvonareva

The following pairs received entry using protected rankings:

• Oksana Kalashnikova / Alla Kudryavtseva
• Aleksandra Krunić / Alexandra Panova

Before the tournament

• Georgina García Pérez / Bibiane Schoofs → replaced by Ekaterina Alexandrova / Yana Sizikova
• Lyudmyla Kichenok / Jeļena Ostapenko → replaced by Jeļena Ostapenko / Valeria Savinykh
• Veronika Kudermetova / Elise Mertens → replaced by Laura Ioana Paar / Julia Wachaczyk
• Lidziya Marozava / Andreea Mitu → replaced by Lidziya Marozava / Aliaksandra Sasnovich
• Vera Lapko / Cornelia Lister → replaced by Çağla Büyükakçay / Magdalena Fręch

• Official website