JK
John Kniffen
Current ranking
Unranked
Career high
-
Overall record
18-41
Last 20 matches
| Date | Tournament | Round | Surface | Result | Opponent | Score |
|---|---|---|---|---|---|---|
| 2026-02-23 | Merida | Round of 32 | Hard | W | Renata Zarazua | 6-2 2-6 6-4 |
| 2026-02-23 | Merida | Round of 16 | Hard | L | Jasmine Paolini | 6-0 6-2 |
| 2026-01-19 | Australian Open | Round of 64 | Hard | L | Iva Jovic | 6-1 6-2 |
| 2026-01-19 | Australian Open | Round of 128 | Hard | W | Marina Stakusic | 1-6 6-4 5-3 RET |
| 2025-09-24 | Beijing | Round of 128 | Hard | W | Viktorija Golubic | 1-6 6-3 7-6(4) |
| 2025-09-24 | Beijing | Round of 64 | Hard | W | Jelena Ostapenko | 6-3 6-2 |
| 2025-09-24 | Beijing | Round of 32 | Hard | L | Belinda Bencic | 4-6 6-4 6-3 |
| 2025-08-25 | US Open | Round of 32 | Hard | L | Ann Li | 7-5 6-3 |
| 2025-08-25 | US Open | Round of 64 | Hard | W | Liudmila Samsonova | 4-6 6-3 6-2 |
| 2025-08-25 | US Open | Round of 128 | Hard | W | Leolia Jeanjean | 6-3 7-5 |
| 2025-07-21 | Prague | Round of 32 | Hard | L | Barbora Palicova | 6-2 3-6 6-3 |
| 2025-06-30 | Wimbledon | Round of 128 | Grass | L | Ekaterina Alexandrova | 6-2 7-5 |
| 2024-12-30 | Brisbane | Round of 64 | Hard | L | Kimberly Birrell | 3-6 7-5 6-2 |
| 2024-10-28 | Hong Kong | Round of 32 | Hard | W | Eudice Wong Chong | 6-3 6-4 |
| 2024-10-28 | Hong Kong | Round of 16 | Hard | L | Diana Shnaider | 6-4 6-1 |
| 2024-10-21 | Tokyo | Round of 32 | Hard | L | Katie Boulter | 6-1 6-4 |
| 2024-10-14 | Ningbo | Round of 32 | Hard | L | Anna Kalinskaya | 3-6 6-3 6-4 |
| 2024-09-16 | Seoul | Round of 32 | Hard | L | Polina Kudermetova | 7-5 6-4 |
| 2024-08-26 | US Open | Round of 128 | Hard | L | Aryna Sabalenka | 6-3 6-3 |
| 2023-10-09 | Hong Kong | Round of 32 | Hard | W | Eudice Wong Chong | 7-5 7-5 |
Most-played opponents
| Opponent | Wins | Losses | Total | H2H |
|---|---|---|---|---|
| Ajla Tomljanovic | 1 | 2 | 3 | view H2H |
| Karolina Muchova | 1 | 1 | 2 | view H2H |
| Kimberly Birrell | 0 | 2 | 2 | view H2H |
| Jaqueline Cristian | 0 | 2 | 2 | view H2H |
| Eudice Wong Chong | 2 | 0 | 2 | view H2H |
| Arantxa Rus | 1 | 0 | 1 | view H2H |
| Su Jeong Jang | 1 | 0 | 1 | view H2H |
| Katarzyna Kawa | 1 | 0 | 1 | view H2H |
| Mihaela Buzarnescu | 1 | 0 | 1 | view H2H |
| Jasmine Paolini | 0 | 1 | 1 | view H2H |