Chiaki Okadaue defeated Isabella Holland 6-2 6-0 in the Darwin 25K qualifying round on hard. The upset overturned the form book — Isabella Holland came in leading the head-to-head 1–0, but Chiaki Okadaue had been the form player, winning 3 of their last 6 on hard. Chiaki Okadaue claimed a first win over Isabella Holland in two meetings, levelling the head-to-head at 1–1.
Okadaue C. took it in straight sets.
Chiaki Okadaue beat Isabella Holland 6-2 6-0. Umpiry, "Chiaki Okadaue vs Isabella Holland — Darwin 25K Qualifying Round", https://umpiry.com/match/2009-09-21/holland-vs-okadaue-darwin-25k-qf?utm_source=cite (as of 21 September 2009).