Timea Babos defeated Jelena Ostapenko 6-3 6-3 in the Seoul round of 32 on hard. The upset overturned the form book — Jelena Ostapenko came in leading the head-to-head 2–1, defending last year's round of 16. That levelled the head-to-head at 2–2.
Babos T. took it in straight sets.
Babos T. and Ostapenko J. faced 5 of the same opponents in the last 12 months. Babos T. went 2–4 (33%) against them, Ostapenko J. 3–2 (60%). Ostapenko J. came out better against 2 of 3 comparable opponents, Babos T. against 0.
Timea Babos beat Jelena Ostapenko 6-3 6-3. Umpiry, "Timea Babos vs Jelena Ostapenko — Seoul Round of 32", https://umpiry.com/match/2019-09-16/babos-vs-ostapenko-seoul-r32?utm_source=cite (as of 16 September 2019).