Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/02 10:30 | Uisung Park v Sungbeen Sim | 6-1,5-7,9-11 |
| ITF M15 Heraklion | 2019/12/09 08:00 | Tim Heger v Sungbeen Sim | 6-4,6-4 |
| ITF M15 Heraklion | 2019/12/08 10:00 | Tom Hands v Sungbeen Sim | 3-6,2-6 |
| ITF M15 Heraklion | 2019/12/01 12:00 | Sungbeen Sim v Yeongseok Jeong | 3-6,2-6 |
| ITF M15 Heraklion | 2019/11/24 10:30 | Lukas H Lilleengen v Sungbeen Sim | 6-3,7-6 |
| ITF M15 Heraklion | 2019/11/18 08:00 | Sungbeen Sim v Lodewijk Weststrate | 1-6,3-6 |
| ITF M15 Heraklion | 2019/11/10 07:30 | Jack Gibbens v Sungbeen Sim | 6-7,7-5,10-8 |
| ITF M15 Changwon | 2019/10/15 01:00 | Sungbeen Sim v Taketo Takamisawa | 6-3,3-6,6-10 |
| ITF M15 Monastir | 2021/05/02 10:30 | Jacob Brumm v Stefano D'Agostino | 6-4,6-0 |
| ITF M15 Monastir | 2021/04/26 09:00 | Jacob Brumm v Savva Polukhin | 6-4,1-6,4-10 |
| ITF M15 Monastir | 2021/04/25 11:30 | Jacob Brumm v Thomas George Brun | 6-1,6-1 |
| UTR Pro Pro Tennis Tennis Series Atlanta | 2021/04/18 14:30 | Jacob Brumm v Nicholas Heng | 6-1,5-7,0-0 |
| UTR Pro Pro Tennis Tennis Series Atlanta | 2021/04/17 17:00 | Jacob Brumm v Evan Bynoe | 6-2,6-3 |
| UTR Pro Pro Tennis Tennis Series Atlanta | 2021/04/16 12:30 | Jacob Brumm v Murphy Cassone | 6-2,0-6,1-6 |
| UTR Pro Pro Tennis Tennis Series Atlanta | 2021/04/14 14:30 | Jacob Brumm v Harris Walker | 2-6,2-6 |
| UTR Pro Pro Tennis Tennis Series Atlanta | 2021/04/13 18:30 | Jacob Brumm v Daniel Milavsky | 4-6,2-6 |