Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2019/12/08 12:00 | Yeongseok Jeong v Biagio Gramaticopolo | 5-7,2-6 |
| ITF M15 Heraklion | 2019/12/03 08:00 | Biagio Gramaticopolo v Yeongseok Jeong | 6-2,6-2 |
| ITF M15 Heraklion | 2019/12/02 08:30 | Aristotelis Thanos v Yeongseok Jeong | 3-6,4-6 |
| ITF M15 Heraklion | 2019/12/01 12:00 | Sungbeen Sim v Yeongseok Jeong | 3-6,2-6 |
| ITF M15 Heraklion | 2019/11/25 09:00 | Sean Hodkin v Yeongseok Jeong | 6-2,6-1 |
| ITF M15 Heraklion | 2019/11/24 10:30 | Vito Dell'Elba v Yeongseok Jeong | 3-6,5-7 |
| ITF M15 Heraklion | 2019/11/18 08:00 | Yeongseok Jeong v Stephanos Schinas | 4-6,3-6 |
| ITF M15 Heraklion | 2019/11/17 07:30 | Yeongseok Jeong v Nikolay Vylegzhanin | 6-3,4-6,10-5 |
| ITF Korea F6 | 2018/08/25 04:30 | Seungri Choi v Seung Heon Hong | 6-2,6-4 |
| ITF Korea F3 Qual | 2018/06/16 01:00 | Ju-Hae Moon v Seung Heon Hong | 6-4,6-3 |