Play starts at 1:00 p.m.
Maria SAKKARI (GRE) vs.  Julia GOERGES (GER)
Timea BACSINSZKY (SUI) vs.  Donna VEKIC (CRO)
[WC] Victoria AZARENKA (BLR) vs. [Q] Margarita GASPARYAN (RUS)
Not before 6:30 p.m.
Alize CORNET (FRA) vs. Anastasia PAVLYUCHENKOVA (RUS)
 Jelena OSTAPENKO (LAT) vs. Kristina MLADENOVIC (FRA)
(WC) Olga DANILOVIC (SRB) vs. [LL] Veronika KUDERMETOVA (RUS)
[Q] Tereza MARTINCOVA (CZE) vs. Yulia PUTINTSEVA (KAZ)
[Q} Ysaline BONAVENTURE (BEL) vs. Katerina SINIAKOVA (CZE)
 Raquel ATAWO (USA) / Katarina SREBOTNIK (SLO) vs. Veronika KUDERMETOVA (RUS) / Vera LAPKO (BLR)
 Timea BACSINSZKY (SUI) / Vera ZVONAREVA (RUS) vs. Anna KALINSKAYA (RUS) / Viktoria KUZMOVA (SVK)
Former World No.1 Azarenka is making her debut in St. Petersburg as a wildcard, facing off against Gasparyan, who joined eight other Russians in the main draw after successfully qualifying.
Gasparyan is one of three home favorites to come out of the qualifying draw, along with Ekaterina Alexandrova and Veronika Kudermetova, who was placed in the draw as a lucky loser.
No.5 seed Goerges, a former champion at the Kremlin Cup in Moscow, looks to pull off the career Premier Russian double for the second straight year, having lost in the semifinals last year.
Mladenovic, the 2017 champion in St. Petersburg, was also runner-up to Petra Kvitova at last year's event.
Wildcard Danilovic is also making her debut at St. Petersburg and has good memories of competing in Russia, having won last year’s Moscow River Cup. By doing so, she not only became the first lucky loser to win a WTA title but also the first player born in the 2000s to do so.