Mara Guth defeated Sofia Costoulas 6-4 4-6 6-1 in the W15 Monastir 3 quarter-final on hard. The upset overturned the form book — Sofia Costoulas came in ranked #158, leading the head-to-head 1–0. Mara Guth claimed a first win over Sofia Costoulas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-05-23 | W35 Annenheim 1 | R16 | clay | Sofia Costoulas | 2-6 6-1 6-3 |
Averages over each player's completed matches in the selected window (200 vs 199). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About