Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Tbilisi | 2023/05/01 06:00 | Maksim Shin v Mikolaj Lis | 5-7,6-1,8-10 |
| ITF M25 Trnava | 2023/03/29 13:55 | Mikolaj Lis v Jakub Mensik | 3-6,2-6 |
| ITF M25 Trnava | 2023/03/28 08:00 | Daniel Siniakov v Mikolaj Lis | 4-6,6-2,8-10 |
| ITF M15 Oberhaching | 2023/02/12 09:00 | Max Wiskandt v Mikolaj Lis | 6-2,6-2 |
| ITF M25 Nussloch | 2023/01/22 08:30 | Yvo Panak v Mikolaj Lis | 6-7,6-4,12-10 |
| ITF M15 Vilnius | 2023/01/16 09:30 | Alexandros Skorilas v Mikolaj Lis | 6-4,7-6 |
| ITF M15 Vilnius | 2023/01/15 08:00 | Max Cunat v Mikolaj Lis | 2-6,1-6 |
| ITF M25 Trnava | 2022/11/29 11:25 | Samuel Kyjaci v Mikolaj Lis | 6-2,7-5 |
| ITF M25 Tbilisi | 2023/04/27 08:20 | Kirill Kivattsev v Evgeny Philippov | 0-6,6-7 |
| ITF M25 Tbilisi | 2023/04/26 06:00 | Sergo Sikharulidze v Kirill Kivattsev | 2-6,2-6 |
| ITF M25 Trento | 2023/03/30 13:00 | Kirill Kivattsev v Charles Broom | 4-6,4-6 |
| ITF M25 Trento | 2023/03/29 18:45 | Kirill Kivattsev v Ben Jones | 7-5,7-6 |
| Challenger Biel | 2023/03/23 13:55 | Kirill Kivattsev v Gabriel Diallo | 2-6,3-6 |
| Challenger Biel | 2023/03/22 10:00 | Kirill Kivattsev v Alexandar Lazarov | 6-4,6-7,6-3 |
| Challenger Biel | 2023/03/20 13:45 | Karol Drzewiecki v Kirill Kivattsev | 4-6,3-6 |
| Challenger Biel | 2023/03/19 15:20 | Kirill Kivattsev v Mirko Martinez | 4-6,6-1,6-2 |