South China Morning Post. World number one Elena Rybakina hailed her "amazing achievement" after securing the year-end top ranking with a 6-2, 6-3 win over fellow Kazakh Yulia Putintseva in Japan on Thursday. Elena Rybakina secures the year-end women's singles number one spot by beating Yulia Putintseva in the last 16 of the Pan Pacific Open in Tokyo.