Rebecca Peterson defeated Bernarda Pera 5-7 6-0 6-1 in the St. Petersburg qualifying final on hard. The upset overturned the form book — Bernarda Pera came in leading the head-to-head 1–0, but Rebecca Peterson had been the form player, winning 3 of their last 4 on hard. Rebecca Peterson claimed a first win over Bernarda Pera in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-16 | Cincinnati | R64 | hard | Bernarda Pera | 6-4 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (77 vs 192). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About