

Aryna Sabalenka defeated Marta Kostyuk 6-3 6-2 in the Roland Garros round of 128 on clay. The result followed the form book — Aryna Sabalenka came in ranked #1, leading the head-to-head 4–0, defending last year's round of 32. Aryna Sabalenka extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-01-04 | Brisbane | F | hard | Aryna Sabalenka | 6-4 6-3 |
| 2025-05-06 | Rome | R16 | clay | Aryna Sabalenka | 6-1 7-6 |
| 2025-04-22 | Madrid | QF | clay | Aryna Sabalenka | 7-6 7-6 |
| 2022-02-14 | Dubai | R32 | hard | Aryna Sabalenka | 6-4 6-1 |
Averages over each player's completed matches in the selected window (200 vs 177). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Sabalenka A.: 1 day rest · 3 matches, 53 games (7d) · Kostyuk M.: 1 day rest · 2 matches, 55 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 clay field, opponent-adjusted over 52 weeks). About