Qatar Open tennis results

Following are the first round results at the WTA Qatar Open on Sunday (prefix number denotes seeding):

Kateryna Bondarenko, Ukraine, bt Annika Beck, Germany, 6-4, 6-4

Donna Vekic, Croatia, bt Fatma Al Nabhani, Oman, 6-0, 6-0

Daria Kasatkina, Russia, bt Wang Qiang, China, 6-1, 2-6, 6-3

Margarita Gasparyan, Russia, bt 10-Karolina Pliskova, Czech Republic, 6-1, 6-1

Cagla Buyukakcay, Turkey, bt Lucie Hradecka, Czech Republic, 6-4, 6-7 (7-9), 6-2

Jelena Ostapenko, Latvia, bt Zarina Diyas, Kazakhstan, 6-1, 6-3

Zheng Saisai, China, bt Varvara Lepchenko, United States, 6-2, 7-6 (8-6)

Eugenie Bouchard, Canada, bt Anastasija Sevastova, Latvia, 5-7, 6-3, 7-6 (7-4)

Yulia Putintseva, Kazakhstan, bt Anna Karolmna Schmiedlova, Slovakia, 6-2, 6-4

Andrea Petkovic, Germany, bt Ekaterina Makarova, Russia, 6-3, 6-2

Endi