Mona Barthel defeated Hanna Chang 6-1 6-3 in the Seoul qualifying round 1 on hard.
Barthel M. took it in straight sets.
Mona Barthel beat Hanna Chang 6-1 6-3. Umpiry, "Mona Barthel vs Hanna Chang — Seoul Qualifying Round 1", https://umpiry.com/match/2018-09-17/barthel-vs-chang-seoul-q1?utm_source=cite (as of 17 September 2018).