| ITF Thailand F11 Qual | 2017/12/03 03:00 | Florian Fallert v Jirat Navasirisomboon | 6-4,6-3 |
| ITF Thailand F11 Qual | 2017/12/02 06:00 | Richard Yang v Jirat Navasirisomboon | 6-4,6-7,2-6 |
| ITF Thailand F10 | 2017/11/28 06:00 | Alexey Vatutin v Jirat Navasirisomboon | 6-1,6-3 |
| ITF Thailand F10 Qual | 2017/11/26 09:00 | Maciej Jablonski v Jirat Navasirisomboon | 7-6,5-7,3-6 |
| Challenger Hua Hin | 2017/11/20 10:10 | Jirat Navasirisomboon v Austin Krajicek | 1-6,2-6 |
| ITF Thailand F9 | 2017/10/18 03:00 | Max Purcell v Jirat Navasirisomboon | 6-2,6-0 |
| ITF Thailand F9 | 2017/10/16 04:40 | Jirat Navasirisomboon v Pattanapong Borisutpong | 7-5,6-1 |
| ITF Thailand F8 | 2017/10/10 05:00 | Yunseong Chung v Jirat Navasirisomboon | 6-1,6-2 |
| ITF Thailand F11 Qual | 2017/12/03 03:00 | Tihomir Grozdanov v Min-Kyu Song | 5-7,1-6 |
| ITF Thailand F11 Qual | 2017/12/02 06:00 | Thantub Suksumrarn v Tihomir Grozdanov | 6-7,2-6 |
| ITF Bulgaria F1 | 2017/05/11 08:40 | Tihomir Grozdanov v Dimitar Kuzmanov | 3-6,2-6 |
| ITF Bulgaria F1 Qual | 2017/05/08 09:40 | Tihomir Grozdanov v Martin Atanasov | 6-4,6-2 |
| ITF Bulgaria F1 Qual | 2017/05/07 09:00 | Tihomir Grozdanov v Lazar Dokov | 6-3,6-2 |
| ITF Croatia F3 | 2017/03/18 08:00 | Tihomir Grozdanov v Zvonimir Oreskovic | 6-4,6-4 |
| ITF Croatia F2 | 2017/03/13 13:30 | Pascal Brunner v Tihomir Grozdanov | 6-3,6-0 |
| ITF Croatia F2 | 2017/03/13 08:30 | Tihomir Grozdanov v Paul Woerner | 6-7,6-1,7-6 |