Jil Teichmann defeated Simona Waltert 5-7 6-1 7-5 in the Iasi quarter-final on clay. The upset overturned the form book — Simona Waltert came in ranked #91, defending last year's round of 16, but Jil Teichmann had been the form player, winning 5 of their last 7 on clay. Jil Teichmann extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-07-14 | Iasi | QF | clay | Jil Teichmann | 5-7 6-1 7-5 |
| 2024-05-15 | W75 Zagreb 1 | R16 | clay | Jil Teichmann | 6-2 3-6 7-6(4) |
| 2019-07-15 | Lausanne | R16 | clay | Jil Teichmann | 6-3 6-3 |
Averages over each player's completed matches in the selected window (48 vs 96). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Waltert S.: 4 days rest · 1 match, 35 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