Stadium: Court 5 Round: 25 Ground: Hardcourt indoor
| ITF M15 Cancun | 2021/12/14 17:00 | Kristjan Tamm v Evan Zhu | 6-7,0-6 |
| ITF M15 Cancun | 2021/12/09 14:00 | Christian Langmo v Kristjan Tamm | 6-4,6-0 |
| ITF M15 Cancun | 2021/12/07 16:00 | Dusty H. Boyer v Kristjan Tamm | 4-6,3-6 |
| ITF M15 Cancun | 2021/12/04 14:00 | Rubin Statham v Kristjan Tamm | 6-7,7-6,10-7 |
| ITF M15 Cancun | 2021/11/30 16:00 | Mwendwa Mbithi v Kristjan Tamm | 6-7,6-7 |
| ITF M15 Cancun | 2021/11/23 14:00 | Kristjan Tamm v Daniel Antonio Nunez | 6-4,2-6,6-7 |
| Challenger Helsinki | 2021/11/14 10:20 | Kristjan Tamm v Shintaro Mochizuki | 6-7,3-6 |
| ITF M25 Grasse | 2021/06/15 10:35 | Clement Tabur v Kristjan Tamm | 6-2,7-5 |
| ITF M25 Vilnius | 2022/01/17 09:35 | Ivan Liutarevich v Arslanbek Temirhanov | 3-6,6-7 |
| ITF M25 Nur-Sultan | 2021/10/28 05:00 | Yan Sabanin v Ivan Liutarevich | 4-6,6-4,6-3 |
| ITF M25 Nur-Sultan | 2021/10/27 06:50 | Jonathan Baron v Ivan Liutarevich | 2-6,2-6 |
| ITF M25 Nur-Sultan | 2021/10/22 05:30 | Filip Peliwo v Ivan Liutarevich | 6-2,6-2 |
| ITF M25 Nur-Sultan | 2021/10/21 05:00 | Ivan Liutarevich v Uladzimir Ignatik | 1-6,6-4,7-5 |
| ITF M25 Nur-Sultan | 2021/10/19 05:05 | Ivan Liutarevich v Ivan Zaytsev | 1-6,6-3,10-4 |
| ITF M25 Nur-Sultan | 2021/10/18 09:35 | Ivan Liutarevich v Arslanbek Aitkulov | 6-1,6-2 |
| ITF M15 Kazan | 2021/10/16 08:00 | Alibek Kachmazov v Ivan Liutarevich | 6-4,6-7,6-4 |