Second-seeded Katerina Siniakova survived a first-round scare at the Livesport Prague Open in her native Czech Republic on Monday.

Siniakova outlasted American qualifier Louisa Chirico, ranked No. 228 in the world, for a 7-5, 4-6, 6-3 victory in 2 hours and 26 minutes. She offset her seven aces with seven double faults, but saved eight of 12 break points.

Czech compatriot and world No. 1 Linda Noskova had no trouble in a 6-3, 6-2 win over Ukraine’s Katarina Zavatska. Poland’s No. 4 Magda Linette and No. 6 Magdalena Frech also advanced to the second round, while lucky loser Kathinka von Deichmann of Liechtenstein defeated Slovakia’s No. 8 Anna Karolina Schmiedlova 6-4, 6-4.

UniCredit Iasi Open

American qualifier Varvara Lepchenko defeated sixth-seeded Italian Martina Trevisan 5-7, 6-4, 6-3 in the opening round in Iasi, Romania.

Lepchenko took advantage of 12 double faults and broke Trevisan’s serve 11 times in a marathon match that lasted 3 hours and 8 minutes. Lepchenko trailed 4-3 in the second set and 2-1 in the third.

Third-seeded Jaqueline Cristian of Romania defeated Italy’s Nuria Brancaccio 6-2, 6-4. Fifth-seeded Elina Avanesyan won 6-1, 6-2 over Spain’s Leyre Romero Gormaz. France’s Chloe Paquet defeated seventh-seeded Maria Lourdes Carle of Argentina, while eighth-seeded Anna Bondar of Hungary defeated Belgium’s Marie Benoit 6-3, 6-1.