Yi Miao Zhou defeated Eva Birnerova 6-4 6-3 in the Australian Open qualifying round of 128 on hard. The upset overturned the form book — Eva Birnerova came in defending last year's round of 128.
Miao Zhou Y. took it in straight sets.
Yi Miao Zhou beat Eva Birnerova 6-4 6-3. Umpiry, "Yi Miao Zhou vs Eva Birnerova — Australian Open Qualifying Round of 128", https://umpiry.com/match/2013-01-10/birnerova-vs-zhou-australian-open-q128?utm_source=cite (as of 10 January 2013).