If they played today
Marta Kostyuk
92%
Sets 2–0
High confidence
Ella Seidel
8%
2–0
68%
2–1
24%
1–2
5%
0–2
3%
Chance of a third set 29%
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 | Ella Seidel | |
| 1781 (#17) | Rating | 1476 (#410) |
| 39–18 (68%) | Win-loss | 21–26 (45%) |
| 57 | ATP/WTA matches | 47 |
| LWWLL | Recent form | LLLLL |
All meetings (1)
| 2025-09-27 | Marta Kostyuk | 2–0 | WTA Singles: Beijing |
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: Ella Seidel
| 2026-09-01 | L | Yuliia Starodubtseva | 0-2 | US Open, Women |
| 2026-08-12 | L | Nadia Podoroska | 0-2 | Cincinnati |
| 2026-07-20 | L | Daria Snigur | 1-2 | Prague |
| 2026-06-30 | L | Linda Noskova | 0-2 | Wimbledon |
| 2026-06-20 | L | Solana Sierra | 0-2 | Bad Homburg |