Aleksandra Krunic defeated Katerina Siniakova 7-5 0-6 6-0 in the Us Open qualifying final on hard. The upset overturned the form book — Katerina Siniakova came in ranked #32, leading the head-to-head 1–0. Aleksandra Krunic claimed a first win over Katerina Siniakova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-10-01 | Beijing | R32 | hard | Katerina Siniakova | 7-6(2) 6-2 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.