JS
Joanna Sakowicz Kostecka
Last ranked
#796
Career high
#138
Overall record
23-43
Record by surface
Last 20 matches
| Date | Tournament | Round | Surface | Result | Opponent | Score |
|---|---|---|---|---|---|---|
| 2026-04-13 | Barcelona | Round of 32 | Clay | L | Carlos Alcaraz | 6-4 6-2 |
| 2026-03-30 | Bucharest | Round of 32 | Clay | L | Daniel Merida Aguilar | 7-6(4) 5-7 7-5 |
| 2026-02-23 | Dubai | Round of 32 | Hard | L | Tallon Griekspoor | 6-3 6-4 |
| 2026-02-07 | Davis Cup WG1 PO: HKG vs FIN | Round Robin | Hard | W | Coleman Wong | 7-5 6-2 |
| 2026-02-07 | Davis Cup WG1 PO: HKG vs FIN | Round Robin | Hard | W | Siu Chi Nicholas Cheng | 6-0 6-1 |
| 2025-09-13 | Davis Cup WG1 R1: BUL vs FIN | Round Robin | Clay | L | Alexander Vasilev | 6-3 7-5 |
| 2025-06-09 | s Hertogenbosch | Round of 32 | Grass | W | Tomas Martin Etcheverry | 7-6(6) 7-5 |
| 2025-06-09 | s Hertogenbosch | Round of 16 | Grass | L | Nuno Borges | W/O |
| 2025-05-07 | Rome Masters | Round of 128 | Clay | W | Hamad Medjedovic | 6-4 6-4 |
| 2025-05-07 | Rome Masters | Round of 64 | Clay | L | Lorenzo Musetti | 6-3 6-2 |
| 2025-03-31 | Marrakech | Round of 32 | Clay | W | Daniel Altmaier | 6-2 4-6 7-6(3) |
| 2025-03-31 | Marrakech | Round of 16 | Clay | L | Roberto Carballes Baena | 6-4 6-4 |
| 2025-02-17 | Doha | Round of 32 | Hard | L | Nuno Borges | 7-6(6) 6-3 |
| 2025-02-10 | Marseille | Round of 32 | Hard | W | Sebastian Korda | 6-7(3) 7-6(4) 6-4 |
| 2025-02-10 | Marseille | Round of 16 | Hard | L | Daniel Altmaier | 6-4 6-3 |
| 2025-01-31 | Davis Cup QLS R1: AUT vs FIN | Round Robin | Clay | L | Lukas Neumayer | 6-4 6-7(4) 6-3 |
| 2025-01-13 | Australian Open | Round of 128 | Hard | L | Arthur Fils | 3-6 7-6(4) 6-4 6-4 |
| 2024-10-14 | Almaty | Round of 32 | Hard | W | Fabio Fognini | 6-3 7-6(4) |
| 2024-10-14 | Almaty | Round of 16 | Hard | L | Karen Khachanov | 7-6(2) 7-6(3) |
| 2024-09-14 | Davis Cup Finals RR: FIN vs ARG | Round Robin | Hard | L | Francisco Cerundolo | 6-7(4) 6-1 6-0 |
Most-played opponents
| Opponent | Wins | Losses | Total | H2H |
|---|---|---|---|---|
| Nuno Borges | 1 | 2 | 3 | view H2H |
| Francisco Cerundolo | 0 | 2 | 2 | view H2H |
| Anne Kremer | 0 | 2 | 2 | view H2H |
| Kristie Boogert | 1 | 1 | 2 | view H2H |
| Tomas Martin Etcheverry | 1 | 1 | 2 | view H2H |
| Daniel Altmaier | 1 | 1 | 2 | view H2H |
| Prajnesh Gunneswaran | 1 | 0 | 1 | view H2H |
| Ajeet Rai | 1 | 0 | 1 | view H2H |
| Botic Van De Zandschulp | 1 | 0 | 1 | view H2H |
| Mackenzie Mcdonald | 1 | 0 | 1 | view H2H |