Stadium: Court 3 Hard Round: 44 Ground: Hardcourt outdoor
| 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 M15 Gimcheon | 2019/06/10 01:00 | Ho-Min Kang v Sungbeen Sim | 1-6,0-6 |
| ITF M15 Daegu | 2019/06/05 01:00 | Chanchai Sookton-Eng v Sungbeen Sim | 7-5,7-6 |
| ITF M15 Daegu | 2019/06/04 03:00 | Seong Taek Im v Sungbeen Sim | 0-6,1-6 |
| ITF M15 Daegu | 2019/06/03 05:20 | Ki Bum Kim v Sungbeen Sim | 6-1,2-6,11-13 |
| ITF Korea F6 | 2018/08/27 02:00 | Sungbeen Sim v Seonyong Han | 0-6,2-6 |
| ITF Korea F6 | 2018/08/26 01:00 | Anze Loviscek v Sungbeen Sim | 2-6,3-6 |
| ITF M15 Alkmaar | 2019/06/26 13:55 | Lodewijk Weststrate v Alec Deckers | 1-6,6-7 |
| ITF Egypt F28 | 2018/11/18 08:00 | Jordi Munoz-Abreu v Lodewijk Weststrate | 6-2,6-1 |
| ITF Egypt F27 | 2018/11/14 11:35 | Lodewijk Weststrate v Johan Nikles | 6-3,5-7,2-6 |
| ITF Egypt F27 Qual | 2018/11/12 08:00 | Tom Pisane v Lodewijk Weststrate | 2-6,4-6 |
| ITF Egypt F27 Qual | 2018/11/11 08:00 | Lodewijk Weststrate v Viacheslav Yulik | 6-4,6-4 |
| ITF Egypt F27 Qual | 2018/11/10 08:00 | Mattia Rossi v Lodewijk Weststrate | 2-6,4-6 |
| ITF Germany F9 | 2018/07/22 08:00 | Tim Sandkaulen v Lodewijk Weststrate | 6-2,7-6 |
| Challenger Scheveningen Qual | 2018/07/14 16:00 | Gijs Brouwer v Lodewijk Weststrate | 6-1,6-3 |