British number two Heather Watson moved into the second round of the Aegon Classic in Edgbaston with a 6-4 7-6 (7-0) win over Hungary's Melinda Czink.
Guernsey-born Watson, 21, took one hour and 27 minutes to beat 30-year-old Czink, who is ranked 72 places below her at 126 in the world.
British number three Johanna Konta also progressed, coasting past Japan's Kurumi Nara 6-2 6-4.
But Tara Moore was beaten 5-7 7-6 (7-5) 6-4 by France's Kristina Mladenovic.
The 20-year-old British number four, who is ranked 194th in the world, came within two points of upsetting Mladenovic, the world number 39, before losing in two hours and 20 minutes.
Moore, who like Konta was handed a wildcard into the Birmingham event, took the first set and led 5-3 in the second-set tie-break before the 12th seed fought back.
Mladenovic will play Konta next after the 22-year-old world number 140 easily saw off Nara - who is six places above her in the world rankings - in one hour and 13 minutes.
Watson, playing only her second match since returning from a two-month lay-off with glandular fever, served impressively throughout her win over Czink, winning 92% of points off her first serve in the first set and 82% on her second.
The 14th seed's only blip came when she was broken when serving for the match at 5-4 in the second set but she recovered to wrap up her win convincingly in a tie-break.
Her next opponent is Russia's Alla Kudryavtseva, while British number one Laura Robson, who was handed a first-round bye, will face Daniela Hantuchova in the second round on Wednesday after the Slovak beat Casey Dellacqua 6-1 7-6 (7-1).