If they played today
Katie Boulter
13%
Sets 0–2
High confidence
Marta Kostyuk
87%
2–0
5%
2–1
8%
1–2
27%
0–2
59%
Chance of a third set 35%
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
| Katie Boulter | Marta Kostyuk | |
| 1545 (#282) | Rating | 1781 (#17) |
| 24–27 (47%) | Win-loss | 39–18 (68%) |
| 51 | ATP/WTA matches | 57 |
| LLWLL | Recent form | LWWLL |
All meetings (1)
| 2025-08-26 | Marta Kostyuk | 0–2 | WTA Singles: US Open |
Last five: Katie Boulter
| 2026-09-02 | L | Karolina Muchova | 0-2 | US Open, Women |
| 2026-08-15 | L | Linda Noskova | 0-2 | Cincinnati |
| 2026-08-13 | W | Katie Volynets | 2-1 | Cincinnati |
| 2026-08-03 | L | Kayla Cross | 0-2 | Toronto |
| 2026-07-27 | L | Ashlyn Krueger | 1-2 | Washington |
Full record for Katie Boulter →
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 |