Stadium: Hard Court 3 Round: 25 Ground: Hardcourt outdoor
| Challenger Budapest Qual | 2018/02/04 11:30 | Marc Sieber v Alessandro Bega | 7-6,0-6,5-7 |
| Challenger Budapest Qual | 2018/02/03 08:30 | Jurabek Karimov v Marc Sieber | 1-6,3-6 |
| ITF Turkey F3 | 2018/01/26 09:30 | Dimitar Kuzmanov v Marc Sieber | 2-6,7-5,7-5 |
| ITF Turkey F3 | 2018/01/25 10:00 | Timur Kiyamov v Marc Sieber | 6-4,1-6,3-6 |
| ITF Turkey F3 | 2018/01/23 09:55 | Mubarak Shannan Zayid v Marc Sieber | 6-7,1-6 |
| ITF Turkey F2 | 2018/01/20 07:30 | Dimitar Kuzmanov v Marc Sieber | 6-1,4-6,7-5 |
| ITF Turkey F2 | 2018/01/19 08:40 | Marc Sieber v Gianluigi Quinzi | 7-5,6-4 |
| ITF Turkey F2 | 2018/01/18 10:05 | Marc Sieber v Nik Razborsek | 6-3,6-3 |
| ITF France F3 Qual | 2018/01/20 09:00 | Ivan Davydov v Arthur Reymond | 1-6,4-6 |
| ITF France F2 Qual | 2018/01/15 12:05 | Ivan Davydov v Joffrey De Schepper | 3-6,6-4,5-7 |
| ITF France F2 Qual | 2018/01/14 14:30 | Ivan Davydov v Hugo Pierre | 7-5,6-2 |
| ITF Czech Republic F10 | 2017/11/13 11:30 | Ivan Davydov v Vitalii Shcherba | 5-7,1-6 |
| ITF Estonia F3 | 2017/10/29 08:00 | Ivan Davydov v Filip Bergevi | 3-6,2-6 |
| ITF Estonia F3 | 2017/10/28 07:00 | Ivan Davydov v Matvey Minin | 6-4,7-5 |
| ITF Estonia F2 | 2017/10/24 15:05 | Linus Frost v Ivan Davydov | 6-2,6-3 |
| ITF France F24 | 2017/10/16 09:00 | Ivan Davydov v Maxence Beauge | 6-4,3-6,3-6 |