Ana Ivanovic and Jelena Jankovic maintained the twin Serbian challenge on another rain-hit day at Wimbledon.
While sixth seed Ivanovic dodged the showers in one of 21 first-round women's singles matches held over from the first two days, compatriot Jankovic, the world number three, joined top seed Justine Henin in the last 32.
Ivanovic took just 19 minutes to win the first set against Melinda Czink, of Hungary, in which there were four breaks of serve.
The French Open runner-up then dropped her serve and trailed 2-1 in the second set before a rain interruption came to her aid, even though she needed a tie-break to secure a 6-0 7-6 (7-3) victory.
Jankovic, who has made an impressive transition to the grass-court season, made light of Slovakian Jarmila Gajdosova on the graveyard of seeds, court two, taking just 48 minutes to secure a 6-1 6-1 second-round victory before the rain returned.
Former champions Martina Hingis and Serena Williams also beat the weather to secure places in the last 32 but tenth seed Daniela Hantuchova, eighth seed Anna Chakvetadze and 15th seed Patty Schnyder were all thwarted by the rain.
Hingis, having survived a scare at the hands of British teenager Naomi Cavaday on the opening day, enjoyed a smoother passage through to the third round with a 6-1 6-2 win over Aiko Nakamura, of Japan.
Among the other delayed first-round ties, Russian 12th seed Elena Dementieva completed a ninth win in 11 meetings with Nathalie Dechy, of France.
Dementieva cruised through the first set but was forced to battle back from 3-0 down in the second set tie-break and overcame a fall to secure a 6-2 7-6 (9-7) success.
France are still represented by Tatiana Golovin, Severine Bremond and Aravane Rezai, in addition to defending champion Amelie Mauresmo.
Martina Muller, of Germany, took just 41 minutes to beat Israel's Anna Smashnova 6-0 6-0. The Israeli won just 17 points in the match.
Nicole Vaidisova, the 17-year-old 14th seed, disposed of Wimbledon debutant Karin Knapp, of Italy, and there were also first-round wins for 16-year-old Austrian Tamira Paszek and Italian trio Francesca Schiavone, Mara Santangelo and Tathiana Garbin.
Womens Singles round two:
Emilie Loit (Fra) bt Elena Vesnina (Rus) 6-1 6-2, (3) Jelena Jankovic (Ser) bt Jarmila Gajdosova (Svk) 6-1 6-1, Milagros Sequera (Ven) bt (27) Samantha Stosur (Aus) 6-2 5-7 6-4, Laura Granville (USA) bt (20) Sybille Bammer (Aut) 6-1 6-4, (16) Shahar Peer (Isr) bt Kaia Kanepi (Est) 6-4 7-5, (9) Martina Hingis (Swi) bt Aiko Nakamura (Jpn) 6-1 6-2, (18) Marion Bartoli (Fra) bt Olga Govortsova (Blr) 7-5 6-2, (7) Serena Williams (USA) bt Alicia Molik (Aus) 7-6 (7-4) 6-3, Eleni Daniilidou (Gre) is tied with (25) Lucie Safarova (Cze) 4-6 6-3 2-4, (1) Justine Henin (Bel) bt Vera Dushevina (Rus) 6-0 6-4.
