Anett Kontaveit defeated Aliaksandra Sasnovich 6-4 4-6 7-5 in the Biel semi-final on hard. The upset overturned the form book — Aliaksandra Sasnovich came in leading the head-to-head 4–2. Anett Kontaveit narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-02-08 | Australian Open | R128 | hard | Anett Kontaveit | 7-5 6-2 |
| 2019-05-06 | Madrid | R64 | clay | Aliaksandra Sasnovich | 0-6 6-3 6-2 |
| 2019-01-14 | Australian Open | R64 | hard | Aliaksandra Sasnovich | 6-3 6-3 |
| 2018-05-07 | Madrid | R32 | clay | Anett Kontaveit | 6-2 4-6 6-2 |
| 2018-03-05 | Indian Wells | R64 | hard | Aliaksandra Sasnovich | 6-2 6-4 |
| 2018-01-01 | Brisbane | R16 | hard | Aliaksandra Sasnovich | 1-6 7-6(2) 6-3 |
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
Averages over each player's completed matches in the selected window (198 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About