Nao Hibino defeated Yi Fan Xu 6-3 6-4 in the Tokyo qualifying round 1 on hard. The upset overturned the form book — Yi Fan Xu came in leading the head-to-head 1–0, but Nao Hibino had been the form player, winning 6 of their last 9 on hard. Nao Hibino claimed a first win over Yi Fan Xu in two meetings, levelling the head-to-head at 1–1.
Hibino N. took it in straight sets.
Hibino N. and Fan Xu Y. faced 2 of the same opponents in the last 12 months. Hibino N. went 1–1 (50%) against them, Fan Xu Y. 0–2 (0%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.
Nao Hibino beat Yi Fan Xu 6-3 6-4. Umpiry, "Nao Hibino vs Yi Fan Xu — Tokyo Qualifying Round 1", https://umpiry.com/match/2016-09-19/hibino-vs-xu-tokyo-q1?utm_source=cite (as of 19 September 2016).