Anna Karolina Schmiedlova defeated Katerina Siniakova 6-1 3-6 6-3 in the Katowice round of 16 on hard. The upset overturned the form book — Katerina Siniakova came in leading the head-to-head 3–1. Anna Karolina Schmiedlova narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-12-09 | W100+H Dubai 1 | R16 | hard | Katerina Siniakova | 6-2 6-2 |
| 2016-07-18 | Bastad | R16 | clay | Katerina Siniakova | 6-3 4-6 6-4 |
| 2014-10-27 | Nantes 50K | SF | hard | Katerina Siniakova | 6-4 6-2 |
| 2014-05-05 | Trnava 75K | QF | clay | Anna Karolina Schmiedlova | 6-3 6-1 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Siniakova K.: 2 days rest · 2 matches, 43 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About