Round: 44 Ground: Hardcourt outdoor
| ITF Poland F2 | 2017/06/18 08:30 | Джхеръми Швендтнер v Lev Kazakov | 6-3,3-6,6-3 |
| ITF Poland F2 | 2017/06/17 08:00 | Verneri Tuomi v Lev Kazakov | 2-6,6-2,1-6 |
| ITF Poland F1 | 2017/06/11 08:00 | Йонас Ериксон Зивертс v Lev Kazakov | 7-5,7-6 |
| ITF Poland F1 | 2017/06/10 08:00 | Delf Gohlke v Lev Kazakov | 1-6,6-7 |
| Challenger Champaign Qual | 2016/11/12 16:00 | Lev Kazakov v Кевин Кинг | 6-4,2-6,5-7 |
| ITF Canada F9 Qual | 2016/09/23 14:00 | Nicholas S. Hu v Lev Kazakov | 6-2,6-1 |
| ITF Canada F9 Qual | 2016/09/22 14:00 | Lev Kazakov v Farris Fathi Gosea | 7-5,6-7,6-4 |
| ITF Canada F9 Qual | 2016/09/21 15:50 | Lev Kazakov v Ivan Endara | 6-7,6-3,6-2 |
| ITF Poland F1 | 2017/06/11 08:00 | Kristofer Siimar v Linus Frost | 1-6,6-3,0-6 |
| Купа Дейвис | 2017/04/09 11:10 | Kristofer Siimar v Thomas Oger | 4-6,4-6 |
| ITF Estonia F3 | 2016/11/01 13:25 | Kristofer Siimar v Владимир Иванов | 0-6,4-6 |
| ITF Estonia F2 | 2016/10/24 15:00 | Dzmitry Zhyrmont v Kristofer Siimar | 6-0,6-0 |
| ITF Estonia F1 | 2015/11/09 08:00 | Vitaly Kozyukov v Kristofer Siimar | 6-2,6-3 |
| ITF Estonia F3 | 2015/11/03 15:00 | Кенет Райсма v Kristofer Siimar | 6-2,6-0 |
| ITF Lithuania F1 | 2015/07/21 10:25 | Claudio Fortuna v Kristofer Siimar | 7-5,6-0 |
| ITF Estonia F2 | 2014/07/19 07:00 | Kristofer Siimar v Кирил Саплин | 5-7,1-6 |