Simona Waltert defeated Petra Marcinko 6-2 6-4 in the W75 Zagreb 1 round of 32 on clay. The upset overturned the form book — Petra Marcinko came in ranked #49. Simona Waltert extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-06-20 | Eastbourne | SF | grass | Petra Marcinko | 6-4 6-7 6-4 |
| 2024-01-09 | Australian Open | Q128 | hard | Simona Waltert | 6-1 6-1 |
Averages over each player's completed matches in the selected window (130 vs 97). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Waltert S.: 5 days rest · 1 match, 35 games (7d) · Marcinko P.: 10 days rest · 3 matches (14d). 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