Round: 44 Ground: Hardcourt outdoor
| ITF - Heraklion M15 | 2019/11/24 10:30 | Lukas H Lilleengen v Sungbeen Sim | 6-3,7-6 |
| ITF - Heraklion M15 | 2019/11/18 08:00 | Sungbeen Sim v Lodewijk Weststrate | 1-6,3-6 |
| ITF - Heraklion M15 | 2019/11/10 07:30 | Jack Gibbens v Sungbeen Sim | 6-7,7-5,10-8 |
| ITF - Changwon M15 | 2019/10/15 01:00 | Sungbeen Sim v Taketo Takamisawa | 6-3,3-6,6-10 |
| ITF - Changwon M15 | 2019/10/14 01:30 | Kousuke Ogura v Sungbeen Sim | 3-6,2-6 |
| ITF - Changwon M15 | 2019/10/13 01:00 | Seong Jae Han v Sungbeen Sim | 2-6,3-6 |
| ITF M15 Gimcheon | 2019/06/17 04:10 | Chanchai Sookton-Eng v Sungbeen Sim | 7-6,2-6,10-5 |
| ITF M15 Gimcheon | 2019/06/11 01:00 | Joseph W. Van Meter v Sungbeen Sim | 2-6,4-6 |
| ITF - Heraklion M15 | 2019/11/25 09:00 | Sean Hodkin v Yeongseok Jeong | 6-2,6-1 |
| ITF - Heraklion M15 | 2019/11/24 10:30 | Vito Dell'Elba v Yeongseok Jeong | 3-6,5-7 |
| ITF - Heraklion M15 | 2019/11/18 08:00 | Yeongseok Jeong v Stephanos Schinas | 4-6,3-6 |
| ITF - Heraklion M15 | 2019/11/17 07:30 | Yeongseok Jeong v Nikolay Vylegzhanin | 6-3,4-6,10-5 |
| ITF - Heraklion M15 | 2019/11/10 07:30 | Lodewijk Weststrate v Yeongseok Jeong | 6-2,3-6,10-8 |
| ITF M15 Nanchang | 2019/09/25 02:00 | Dusty H. Boyer v Yeongseok Jeong | 6-1,6-2 |
| ITF M15 Nanchang | 2019/09/17 03:45 | Yeongseok Jeong v Dusty H. Boyer | 6-7,0-6 |
| ITF - Hua Hin M15 | 2019/08/27 07:35 | Young-Hoon Jeong v Yeongseok Jeong | 6-4,6-2 |