If they played today
Marta Kostyuk
79%
Sets 2–0
High confidence
Zeynep Sönmez
21%
2–0
50%
2–1
29%
1–2
12%
0–2
9%
Chance of a third set 42%
Current ratings and the head-to-head record, for a best-of-three match with no tournament attached. For the forecast of a scheduled match, open the match page.
Side by side
| Marta Kostyuk | Zeynep Sönmez | |
| 1781 (#17) | Rating | 1617 (#128) |
| 39–18 (68%) | Win-loss | 37–28 (57%) |
| 57 | ATP/WTA matches | 65 |
| LWWLL | Recent form | WLLWL |
All meetings (1)
| 2025-08-28 | Marta Kostyuk | 2–0 | WTA Singles: US Open |
Last five: Marta Kostyuk
| 2026-09-17 | L | Liudmila Samsonova | 1-2 | Guadalajara |
| 2026-09-06 | L | Linda Noskova | 1-2 | US Open, Women |
| 2026-09-04 | W | Ekaterina Alexandrova | 2-0 | US Open, Women |
| 2026-09-02 | W | Sloane Stephens | 2-0 | US Open, Women |
| 2026-08-22 | L | Coco Gauff | 0-2 | Cincinnati |
Full record for Marta Kostyuk →
Last five: Zeynep Sönmez
| 2026-09-16 | L | Iva Jović | 0-2 | Guadalajara |
| 2026-09-14 | W | Iryna Shymanovich | 2-0 | Guadalajara |
| 2026-09-01 | L | Coco Gauff | 0-2 | US Open, Women |
| 2026-08-15 | L | Amanda Anisimova | 0-2 | Cincinnati |
| 2026-08-13 | W | Daria Kasatkina | 2-1 | Cincinnati |