Marta Kostyuk defeated Daria Saville 7-6 6-3 in the Fed Cup WG2 R1: UKR vs AUS round robin on grass. The upset overturned the form book — Daria Saville came in defending last year's round-robin. Marta Kostyuk extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-02-24 | Merida | R32 | hard | Daria Saville | 6-4 7-6(6) |
| 2024-07-01 | Wimbledon | R64 | grass | Marta Kostyuk | 4-6 7-6(2) 6-4 |
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 (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kostyuk M.: 4 days rest · 3 matches, 57 games (7d). Higher means fresher. About