Stadium: Court 1 Round: 14 Ground: Hardcourt outdoor
| ITF Uzbekistan F4 | 2017/06/08 05:00 | Fayziev, Sanjar v Kalovelonis, Markos | 7-6,7-5 |
| ITF M25 Nur-Sultan | 2021/07/07 07:00 | Kalovelonis, Markos v Lucas Catarina | 6-4,6-7,2-6 |
| ITF - M15 Shymkent | 2021/06/03 07:25 | Manafov, Vladyslav v Kalovelonis, Markos | 6-1,3-6,6-3 |
| ITF - M15 Shymkent | 2021/06/02 07:05 | Saba Purtseladze v Kalovelonis, Markos | 0-6,3-6 |
| ITF - M15 Shymkent | 2021/05/27 05:00 | Kalovelonis, Markos v Ivan Liutarevich | 4-6,6-3,6-7 |
| ITF - M15 Shymkent | 2021/05/26 04:00 | Manafov, Vladyslav v Kalovelonis, Markos | 2-6,6-3,3-6 |
| ITF - M15 Tbilisi | 2021/05/20 06:00 | Kalovelonis, Markos v Benjamin Lock | 4-6,4-6 |
| ITF - M15 Tbilisi | 2021/05/19 07:25 | Keenan Mayo v Kalovelonis, Markos | 4-6,7-6,3-6 |
| ITF - M15 Antalya | 2021/04/08 07:00 | Kalovelonis, Markos v Pavlasek, Adam | 6-3,6-7,0-6 |
| Nur Sultan, Kazakhstan | 2021/07/11 06:35 | Fayziev, Sanjar v Yshai Oliel | 1-6,7-6,1-6 |
| ITF M25 Nur-Sultan | 2021/07/09 05:00 | Andrey Kuznetsov v Fayziev, Sanjar | 4-6,6-1,6-4 |
| ITF M25 Nur-Sultan | 2021/07/08 07:35 | Grigoriy Lomakin v Fayziev, Sanjar | 3-6,4-6 |
| ITF M25 Nur-Sultan | 2021/07/07 05:10 | Fayziev, Sanjar v Nick Chappell | 6-4,6-4 |
| ITF - M15 Shymkent | 2021/06/02 08:35 | Fayziev, Sanjar v Shyla, Yaraslau | 3-6,0-6 |
| ITF - M15 Shymkent | 2021/05/27 05:00 | Fayziev, Sanjar v Pavel Verbin | 6-0,6-2 |
| ITF - M15 Shymkent | 2021/05/26 04:00 | Fayziev, Sanjar v Beibit Zhukayev | 6-4,6-2 |
| ITF - M15 Tbilisi | 2021/05/19 07:25 | Fayziev, Sanjar v Christian Sigsgaard | 4-6,3-6 |