Stadion: Court 1 Round: 28 Ground: Clay
| ITF - M25 - Anseong | 2023/06/23 02:00 | Yunseong Chung v Shunsuke Mitsui | 6-1,6-1 |
| ITF - M25 - Anseong | 2023/06/22 02:00 | Yunseong Chung v Dong Ju Kim | 3-6,6-1,7-5 |
| ITF - M25 - Anseong | 2023/06/21 05:50 | Yunseong Chung v Jae Myeong Lee | 6-2,6-2 |
| ITF - M25 - Changwon | 2023/06/15 02:30 | Yunseong Chung v Renta Tokuda | 6-7,1-6 |
| ITF - M25 - Changwon | 2023/06/14 01:00 | Yunseong Chung v Yeongseok Jeong | 6-2,6-2 |
| ITF - M25 - Daegu | 2023/06/09 00:50 | Yunseong Chung v Uisung Park | 6-7,3-6 |
| ITF - M25 - Daegu | 2023/06/07 03:55 | Yunseong Chung v Suk Hyun Choo | 6-3,6-1 |
| Challenger - Busan | 2023/05/11 06:40 | Yunseong Chung v Gabriel Diallo | 6-7,6-7 |
| ITF - M25 - Anseong | 2023/06/23 02:00 | Taisei Ichikawa v Gerard Campana Lee | 6-7,0-6 |
| ITF - M25 - Anseong | 2023/06/21 03:50 | Gerard Campana Lee v Kokoro Isomura | 6-4,6-3 |
| Challenger - Skopje | 2023/05/25 09:45 | Gerard Campana Lee v Evgeny Donskoy | 4-6,2-6 |
| Challenger - Skopje | 2023/05/24 09:00 | Nerman Fatic v Gerard Campana Lee | 6-7,6-4,2-6 |
| Challenger - Skopje | 2023/05/22 14:10 | Gerard Campana Lee v Daniel Dutra Da Silva | 6-3,6-2 |
| Challenger - Oeiras | 2023/05/17 12:45 | Aleksandar Vukic v Gerard Campana Lee | 6-4,4-6,6-3 |
| Challenger - Oeiras | 2023/05/16 12:35 | Gerard Campana Lee v Manuel Guinard | 6-3,6-2 |
| ITF - M25 - Valldoreix | 2023/05/07 11:30 | Anthony Genov v Gerard Campana Lee | 6-2,6-3 |