Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF Egypt F7 | 2018/02/24 08:00 | Klim Ivanov v Worarin Kumthonkittikul | 1-6,2-6 |
| ITF Egypt F6 | 2018/02/18 08:00 | Raleigh Smith v Worarin Kumthonkittikul | 6-1,6-2 |
| Challenger Bangkok Qual | 2018/01/06 06:20 | Worarin Kumthonkittikul v Mao-Xin Gong | 6-4,3-6,1-6 |
| Challenger Bangkok Qual | 2017/12/30 04:50 | Worarin Kumthonkittikul v Marsel Ilhan | 1-6,0-6 |
| Challenger Bangkok 2 Qual | 2017/01/07 03:00 | Worarin Kumthonkittikul v N.Sriram Balaji | 1-6,3-6 |
| Challenger Bangkok Qual | 2016/12/31 04:05 | Worarin Kumthonkittikul v Chaleechan Tanasugarn | 2-6,6-4,4-6 |
| ITF USA F33 Qual | 2016/10/17 21:00 | William Griffith v Worarin Kumthonkittikul | 6-1,6-4 |
| ITF Thailand F4 | 2016/08/20 05:00 | Aoxiong Wang v Worarin Kumthonkittikul | 6-3,6-2 |
| ITF Egypt F7 | 2018/02/24 14:30 | Stefan Seifert v Petr Hajek | 6-1,6-1 |
| ITF Egypt F6 | 2018/02/19 08:00 | Enrico Dalla Valle v Stefan Seifert | 7-5,6-1 |
| ITF Egypt F6 | 2018/02/18 10:30 | Stefan Seifert v Tyler Mercier | 3-6,6-3,6-1 |
| ITF Egypt F6 | 2018/02/17 08:00 | Simon Beaupain v Stefan Seifert | 3-6,6-7 |
| ITF Germany F1 | 2018/01/10 11:45 | Stefan Seifert v Kai Lemstra | 6-2,6-7,4-6 |
| ITF Germany F1 | 2018/01/08 11:30 | Stefan Seifert v Robin Lang | 7-6,6-4 |
| ITF Germany F1 | 2018/01/07 15:00 | Antoine Walch v Stefan Seifert | 4-6,1-6 |
| ITF Germany F1 | 2018/01/07 08:00 | Albert Sprlak Puk v Stefan Seifert | 2-6,3-6 |