Round: 62 Ground: Hardcourt outdoor
| ITF Estonia F3 | 2016/11/01 12:05 | Alexander Vasilenko v Siimar, Mattias | 6-1,6-3 |
| ITF Estonia F2 | 2016/10/27 14:30 | Kenneth Raisma v Siimar, Mattias | 6-1,6-4 |
| ITF Estonia F2 | 2016/10/24 13:00 | Tuomi, Verneri v Siimar, Mattias | 3-6,0-6 |
| ITF Estonia F1 | 2016/07/26 22:00 | Wojcik, Yann v Siimar, Mattias | 7-5,7-6 |
| ITF Estonia F1 | 2016/07/25 22:00 | Siimar, Mattias v Saar, Karl Kiur | 2-6,6-3,6-3 |
| ITF Estonia F1 | 2015/11/11 13:25 | Ivanov, Vladimir v Siimar, Mattias | 6-4,6-7,6-2 |
| ITF Estonia F1 | 2015/11/09 08:00 | Stabins, Krisjanis v Siimar, Mattias | 6-1,6-7,4-6 |
| ITF Estonia F3 | 2015/11/03 13:00 | Niels Lootsma v Siimar, Mattias | 6-4,6-3 |
| ITF Egypt F2 | 2017/01/21 10:30 | Uryson, Nicolas v Khotkov, Oleg | 7-6,6-2 |
| ITF USA F4 | 2017/01/13 20:00 | de Paula, Fabiano v Uryson, Nicolas | 6-4,6-2 |
| ITF USA F3 | 2017/01/06 14:00 | Callahan, Hunter v Uryson, Nicolas | 6-4,6-4 |
| ITF France F13 Qual | 2016/07/03 10:15 | Benjamin Pietri v Uryson, Nicolas | 6-3,6-0 |
| ITF France F12 Qual | 2016/06/26 08:30 | Orradre, Brian v Uryson, Nicolas | 3-6,2-6 |
| ITF France F12 Qual | 2016/06/25 08:00 | Uryson, Nicolas v Ramiaramanan, Lofo | 7-6,6-4 |
| ITF France F11 Qual | 2016/06/19 10:10 | Lopez San Martin, Alvaro v Uryson, Nicolas | 6-2,3-6,6-3 |
| ITF France F11 Qual | 2016/06/18 10:00 | Mentha, Sebastien v Uryson, Nicolas | 5-7,4-6 |