Yeon Woo Ku leads 3 to 0 over 3 singles meetings since 2021. Last meeting on 26/11/2025 at W50 Yokohama.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 26/11/2025 | W50 Yokohama | Round 1 | hard | Ku | 6-1 6-1 |
| 05/04/2025 | W15 Kashiwa | Semi-final | hard | Ku | 6-2 6-4 |
| 24/08/2021 | W15 Bad Waltersdorf | Round 1 | clay | Ku | 4-6 6-2 4-6 |
| hard | Shimizu 0 - 2 Ku |
| clay | Shimizu 0 - 1 Ku |
| 2025 | Shimizu 0 - 2 Ku |
| 2021 | Shimizu 0 - 1 Ku |
164 wins, 116 losses since 2021 (58.6%).
Last matches: D V V D V
205 wins, 117 losses since 2021 (63.7%).
Last matches: D D V V V
Yeon Woo Ku leads 3 to 0 over 3 singles meetings since 2021.
On 26/11/2025, at W50 Yokohama (Round 1): Yeon Woo Ku won 6-1 6-1.