Stadium: Court 1 Round: 25 Ground: Clay
| ITF Belarus F1 | 2016/08/09 10:30 | Aliaksandr Liaonenka v Deviatiarov, Marat | 1-6,4-6 |
| ITF M15 Novomoskovsk | 2021/05/31 07:00 | Aliaksandr Liaonenka v Kolisnyk, Olexiy | 3-6,6-3,10-8 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Aliaksandr Liaonenka v Habsuda, Simon | 6-2,6-0 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Aliaksandr Liaonenka v Egor Matvievici | 6-2,6-3 |
| ITF M15 Novomoskovsk | 2021/05/26 10:05 | Aliaksandr Liaonenka v Carlos Sanchez Jover | 6-4,1-6,5-7 |
| ITF M15 Novomoskovsk | 2021/05/25 06:15 | Pujol Navarro, Bruno v Aliaksandr Liaonenka | 6-0,5-7,7-10 |
| ITF M15 Novomoskovsk | 2021/05/24 12:00 | Ilnytskyy, Svyatoslav v Aliaksandr Liaonenka | 4-6,3-6 |
| ITF - M15 Tbilisi | 2021/05/19 07:35 | Aliaksandr Liaonenka v Benjamin Lock | 3-6,3-6 |
| ITF - M15 Tbilisi | 2021/05/17 06:00 | Aliaksandr Liaonenka v Sendogan, Emir | 6-2,7-5 |
| ITF M15 Novomoskovsk | 2021/05/26 08:20 | Oleksandr Ovcharenko v Deviatiarov, Marat | 7-6,6-4 |
| ITF - M15 Tbilisi | 2021/05/18 07:00 | Deviatiarov, Marat v Marek Gengel | 1-6,4-6 |
| ITF M15 Jerusalem | 2021/05/13 07:00 | Justin Roberts v Deviatiarov, Marat | 6-1,6-2 |
| ITF M15 Jerusalem | 2021/05/12 07:00 | Alec Beckley v Deviatiarov, Marat | 1-6,6-7 |
| ITF M15 Ramat Hasharon | 2021/05/07 07:00 | Deviatiarov, Marat v Felix Corwin | 5-7,4-6 |
| ITF M15 Ramat Hasharon | 2021/05/06 10:30 | Deviatiarov, Marat v Goldenberg, Lior | 6-3,6-2 |
| ITF M15 Ramat Hasharon | 2021/05/05 09:10 | Deviatiarov, Marat v Benya, Roee | 7-6,6-0 |
| ITF M15 St Petersburg | 2021/04/15 07:00 | Naoki Tajima v Deviatiarov, Marat | 7-6,6-3 |