Danielle Collins defeated Danka Kovinic 4-6 6-2 7-5 in the Australian Open qualifying round of 64 on hard. The upset overturned the form book — Danka Kovinic came in defending last year's round of 64.
Collins D. came through in three sets.
Collins D. and Kovinic D. faced 1 of the same opponent in the last 12 months. Collins D. went 0–1 (0%) against them, Kovinic D. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Danielle Collins beat Danka Kovinic 4-6 6-2 7-5. Umpiry, "Danielle Collins vs Danka Kovinic — Australian Open Qualifying Round of 64", https://umpiry.com/match/2018-01-13/collins-vs-kovinic-australian-open-q64?utm_source=cite (as of 13 January 2018).