Round: 25 Ground: Hardcourt indoor
| ITF Estonia F1 | 2015/11/08 08:00 | Kozyukov, Vitaly v Kosonen, Mika | 6-2,6-1 |
| ITF Estonia F1 | 2015/11/07 08:00 | Kozyukov, Vitaly v Tuomi, Verneri | 6-0,6-3 |
| ITF Estonia F3 | 2015/11/04 10:00 | Kozyukov, Vitaly v Zaitcev, Anton | 6-7,1-6 |
| ITF Estonia F3 | 2015/11/03 13:00 | Kozyukov, Vitaly v Muzaev, Richard | 7-6,6-1 |
| ITF Estonia F3 | 2015/11/01 08:00 | Kozyukov, Vitaly v Virtanen, Panu | 6-1,6-1 |
| ITF Estonia F3 | 2015/10/31 08:00 | Kozyukov, Vitaly v Novotny, David | 6-3,6-2 |
| ITF Belarus F1 Qual | 2015/10/20 07:00 | Kozyukov, Vitaly v Zhyrmont, Dzmitry | 6-3,3-6,6-7 |
| ITF Belarus F1 Qual | 2015/10/14 09:55 | Kozyukov, Vitaly v Pavel Kotov | 3-6,6-4,3-6 |
| ITF Estonia F3 | 2015/11/03 15:00 | Kenneth Raisma v Siimar, Kristofer | 6-2,6-0 |
| ITF Lithuania F1 | 2015/07/21 10:25 | Fortuna, Claudio v Siimar, Kristofer | 7-5,6-0 |
| ITF Estonia F2 | 2014/07/19 07:00 | Siimar, Kristofer v Saplin, Kirill | 5-7,1-6 |
| ITF Estonia F1 | 2014/07/13 07:00 | Tverijonas, Julius v Siimar, Kristofer | 4-6,6-4,6-2 |