Moscow - Sixth-seed local favourite Anastasia Pavlyuchenkova has secured her second round Kremlin Cup ticket on Tuesday with a straight-set victory over Croatian teenager Ana Konjuh on Tuesday.
The 23-year-old Pavlyuchenkova, seeking her seventh career title at the joint WTA and ATP event, outclassed Konjuh 6-3, 6-4 in their first ever meeting.
The Paris WTA indoor winner broke midway through the opening set and kept her narrow lead through to lift herself 1-0 up in 31 minutes.
The second set was a virtual carbon copy of the first as Pavlyuchenkova, 30th in the WTA rankings, broke once again to take the set and the match in one hour 21 minutes.
"I knew almost nothing about my opponent and was mostly focused on my own performance," Pavlyuchenkova said.
"In general I'm pleased with my tennis today as it's always difficult to start a new tournament especially in front of my home crowd."
Meanwhile, unheralded Serbia's Aleksandra Krunic, who appeared in the main draw courtesy of a wild card, produced the first upset by ousting eighth seeded Frenchwoman Caroline Garcia, 6-4, 6-2.
Moscow-born Krunic, 21, broke her rival's serve twice for a one-set advantage, while Garcia, who won her maiden WTA title in Bogota this year, broke back only once.
In the second set at Moscow's Olympic indoor arena Krunic, 109th in the WTA rankings, produced two more breaks to advance to the second round after 52 minutes on court.
"It was difficult to oppose Krunic as she played really well today," Garcia said.
"She served well and moved around the court pretty fast while I experienced certain complications and failed to match her solid performance tonight."
Amongst the men, Mikhail Kukushkin of Kazakhstan, last year's runner-up, battled back from a set down to proceed into the second round past Russia's wild card Karen Khachanov with a 6-7 (3/7), 6-0, 6-2 victory.
Kukushkin, 74th in the world, was trailing 1-0 after losing the opening set on a tiebreak. But in the second he moved up a gear to level at 1-1. In the decider Kukushkin, 26, broke twice to win their first ATP Tour meeting.
Results on Tuesday of the Kremlin Cup ATP and WTA tournaments (x denotes seeding):
Mikhail Kukushkin (KAZ) bt Karen Khachanov (RUS) 6-7 (3/7), 6-0, 6-2
Ricardas Berankis (LTU) bt Aslan Karatsev (RUS) 6-3, 6-4
Samuel Groth (AUS) bt Andrey Rublev (RUS) 7-6 (7/4), 7-5
Ivan Dodig (CRO) bt Pere Riba (ESP) 6-4, 6-2
Juan Monaco (ARG) bt Paolo Lorenzi (ITA) 6-3, 5-7, 6-3
Evgeny Donskoy (RUS) bt Dudi Sela (ISR) 6-4, 6-0
Aleksandra Krunic (SRB) bt Caroline Garcia (FRA x8) 6-4, 6-2
Anastasia Pavlyuchenkova (RUS x6) bt Ana Konjuh (CRO) 6-3, 6-4
Camila Giorgi (ITA) bt Lesya Tsurenko (UKR) 6-0, 6-3
Vitalia Diatchenko (RUS) bt Olga Govortsova (BLR) 6-2, 2-1 abandon
Katerina Siniakov (CZE) bt Elena Vesnina (RUS) 6-2, 6-2
Kateryna Kozlova (UKR) bt Aliaksandra Sasnovich (BLR) 6-3, 6-2