Top seed Simona Halep laid a 6-1, 6-2 beatdown on fellow Romanian Elena-Gabriela Ruse on Monday to power ahead on Wednesday at the Transylvania Open.
The double Grand Slam winner who took a late wild card entry, joins half-Romanian US Open champion Emma Raducanu in the second round.
The newly married 30-year-old Halep maintained a flawless 14-0 record in WTA main draws against countrywoman after her opening rout in the provincial city of Cluj-Napoka.
Also advancing: second seed Anett Kontaveit, who stayed in the chase for the last spot in the eight-player year-end finals next month in Mexico.
The Estonian won her 11th consecutive indoor match as she put out 140th-ranked qualifier Aleksandra Krunic 6-3, 7-5.
Kontaveit owns two titles this season but needs to lift the Romanian trophy at the weekend to assure herself a place in Guadalajara; the victory was her 22 from her last 24 matches extending back to August before the US Open.
Halep needed 74 minutes to win, firing six aces and breaking on four of eight chances.
Main photo:- Simona Halep wins first round match ©WTATennis.com