Stadium: Court 4 Round: 54
| Coupe Davis | 2018/04/07 02:00 | Patrombon, Jeson v Navasirisomboon, Jirat | 6-2,6-2 |
| Coupe Davis | 2018/02/04 07:45 | de Silva, Yasitha v Navasirisomboon, Jirat | 5-7,2-6 |
| Coupe Davis | 2018/02/03 04:00 | Dissanayake, Sharmal v Navasirisomboon, Jirat | 6-4,7-5 |
| ITF Thailand F12 Qual | 2017/12/09 06:30 | Navasirisomboon, Jirat v Grozdanov, Tihomir | 3-6,5-7 |
| ITF Thailand F11 Qual | 2017/12/03 03:00 | Fallert, Florian v Navasirisomboon, Jirat | 6-4,6-3 |
| ITF Thailand F11 Qual | 2017/12/02 06:00 | Yang, Richard v Navasirisomboon, Jirat | 6-4,6-7,2-6 |
| ITF Thailand F10 | 2017/11/28 06:00 | Alexey Vatutin v Navasirisomboon, Jirat | 6-1,6-3 |
| ITF Thailand F10 Qual | 2017/11/26 09:00 | Jablonski, Maciej v Navasirisomboon, Jirat | 7-6,5-7,3-6 |
| ITF Vietnam F1 | 2018/04/28 05:00 | Yuttana Charoenphon v Daisuke Sumizawa | 4-6,2-6 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Aoran Wang v Daisuke Sumizawa | 6-2,6-2 |
| ITF Japan F5 | 2018/03/31 00:30 | Kikuchi, Gengo v Daisuke Sumizawa | 6-1,6-3 |
| ITF Turkey F11 | 2018/03/18 07:00 | Fornell-Mestres, Marc v Daisuke Sumizawa | 6-4,6-4 |
| ITF Turkey F11 | 2018/03/17 08:30 | Bothwell, Samuel v Daisuke Sumizawa | 0-6,4-6 |
| Turkey F10, Singles Qualifying | 2018/03/10 08:30 | Gabriel Donev v Daisuke Sumizawa | 6-3,6-3 |
| ITF Turkey F9 | 2018/03/04 08:30 | Daisuke Sumizawa v Krivokuca, Neven | 1-6,2-6 |
| ITF Turkey F9 | 2018/03/03 07:00 | Daisuke Sumizawa v Sincharoenwattana, Nutdanai | 6-1,7-6 |