Stadium: Hard Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF Estonia F4 | 2017/11/08 11:10 | Tyurnev, Evgeny v Deviatiarov, Marat | 6-3,7-6 |
| ITF Estonia F4 | 2017/11/07 09:00 | Niklas-Salminen, Patrick v Deviatiarov, Marat | 6-7,6-1,3-6 |
| ITF Estonia F3 | 2017/10/31 11:45 | Alexander Vasilenko v Deviatiarov, Marat | 6-2,6-3 |
| ITF Estonia F2 | 2017/10/25 14:25 | Deviatiarov, Marat v Kenneth Raisma | 6-4,2-6,6-7 |
| ITF Estonia F2 | 2017/10/24 08:50 | Deviatiarov, Marat v Daniil Glinka | 3-6,6-3,6-2 |
| ITF Belarus F2 | 2017/08/17 09:10 | Deviatiarov, Marat v Manafov, Vladyslav | 6-4,5-7,7-5 |
| ITF Belarus F2 | 2017/08/16 07:00 | Marek Gengel v Deviatiarov, Marat | 2-6,6-2,3-6 |
| ITF Belarus F2 | 2017/08/14 11:00 | Deviatiarov, Marat v Zgombic, Fran Zvonimir | 5-7,7-6,6-3 |
| ITF Germany F3 | 2018/02/01 20:05 | Reuter, Yannik v Marvin Moeller | 3-6,1-6 |
| ITF Germany F3 | 2018/01/30 10:00 | Reuter, Yannik v van Beem, Colin | 6-3,1-6,6-4 |
| Rennes, France, Qualifying | 2018/01/20 12:30 | Ymer, Mikael v Reuter, Yannik | 6-4,6-1 |
| Challenger Koblenz Qual | 2018/01/14 09:00 | Reuter, Yannik v Bossel, Adrien | 6-2,4-6,1-6 |
| Mouilleron-Le-Captif, France | 2017/11/08 17:30 | Alexey Vatutin v Reuter, Yannik | 7-5,6-1 |
| Mouilleron-Le-Captif, France | 2017/11/07 18:50 | Reuter, Yannik v Robredo, Tommy | 6-4,6-2 |
| Mouilleron-Le-Captif, France, Qualifying | 2017/11/06 10:00 | Reuter, Yannik v Vandenbulcke, Yannick | 6-3,6-0 |
| Mouilleron-Le-Captif, France, Qualifying | 2017/11/05 11:25 | Antoine Hoang v Reuter, Yannik | 7-6,6-7,4-6 |