Level, 2 wins each over 4 singles meetings since 2023. Last meeting on 02/07/2024 at W15 Tianjin.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 02/07/2024 | W15 Tianjin | Round 1 | hard | Sun | 6-3 6-3 |
| 09/06/2024 | W50 Taizhou | Qualifying 1 | hard | Liu | 5-7 6-2 6-2 |
| 26/06/2023 | W15 Tianjin | Qualifying 2 | hard | Liu | 6-3 4-6 10-5 |
| 23/01/2023 | W15 Antalya | Qualifying 2 | clay | Sun | 2-6 7-5 10-8 |
| hard | Liu 2 - 1 Sun |
| clay | Liu 0 - 1 Sun |
| 2024 | Liu 1 - 1 Sun |
| 2023 | Liu 1 - 1 Sun |
Level, 2 wins each over 4 singles meetings since 2023.
On 02/07/2024, at W15 Tianjin (Round 1): Yifan Sun won 6-3 6-3.