British No 1 and eighth seed Laura Robson advanced to the second round of the HP Open with a 6-4 6-2 victory over Greece's Eleni Daniilidou.
Robson, seeded in a WTA tournament for the first time, appeared to be letting her opponent back into the match when Daniilidou came back from 3-0 down in the second set to the brink of levelling at 3-3.
But Robson held after a nail-biting service game and re-established her double break at 5-2 and served out at the first attempt.
She joined compatriot Heather Watson in the second round, where she will face Zhou Yimiao of China.
Watson, partnering the Japanese veteran Kimiko Date-Krumm, made it through to the second round of the women's doubles.
The 20-year-old and her 42-year-old partner Kimiko Date-Krumm, who are the fourth seeds, beat Canada's Eugenie Bouchard and American Alexa Glatch 6-3 6-2.