

Marta Kostyuk defeated Anastasia Potapova 6-0 7-5 in the Indian Wells quarter-final on hard. The result followed the form book — Marta Kostyuk came in ranked #11, defending last year's round of 128. Marta Kostyuk extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-04-21 | Madrid | SF | clay | Marta Kostyuk | 6-2 1-6 6-1 |
| 2025-04-22 | Madrid | R16 | clay | Marta Kostyuk | 6-3 6-2 |
| 2023-06-19 | Birmingham | R32 | grass | Anastasia Potapova | 6-7 7-5 6-4 |
| 2023-03-20 | Miami | R64 | hard | Anastasia Potapova | 6-1 6-3 |
Averages over each player's completed matches in the selected window (130 vs 112). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kostyuk M.: 1 day rest · 4 matches, 95 games (7d) · Potapova A.: 7 days rest · 1 match, 18 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About