The victory helped the Kazakh take a big step towards securing the year-end number one ranking. Oct 25 (Reuters) - Elena Rybakina blazed past unseeded Canadian Leylah Fernandez 6-2 6-2 in the Ningbo Open final on Sunday to retain her title and lift her first trophy as the world number one. Rybakina defends Ningbo title as top-ranked chase continues; Siniakova dominates Japan Open for a 6th career title.