Ya Hsuan Lee defeated Yukina Saigo 6-2 6-2 in the Osaka qualifying round of 16 on hard.
Hsuan Lee Y. took it in straight sets.
Ya Hsuan Lee beat Yukina Saigo 6-2 6-2. Umpiry, "Ya Hsuan Lee vs Yukina Saigo — Osaka Qualifying Round of 16", https://umpiry.com/match/2018-04-09/lee-vs-saigo-osaka-q16?utm_source=cite (as of 9 April 2018).