stadio: Center Court Round: 26 Ground: Clay
| ITF M15 Wroclaw | 2023/06/28 10:15 | Kirill Kivattsev v Maciej Rajski | 4-6,6-4,6-4 |
| ITF M25 Cattolica | 2023/06/22 17:05 | Samuel Vincent Ruggeri v Kirill Kivattsev | 6-2,6-1 |
| ITF M25 Cattolica | 2023/06/21 13:55 | Kirill Kivattsev v Tommaso Compagnucci | 6-3,6-4 |
| ITF M25 Cattolica | 2023/06/20 19:00 | Kirill Kivattsev v Alessandro Pecci | 6-2,6-3 |
| ITF M25 Kiseljak | 2023/06/03 16:30 | Kirill Kivattsev v Duje Ajdukovic | 3-6,6-7 |
| ITF M25 Kiseljak | 2023/06/03 08:00 | Kirill Kivattsev v Bogdan Bobrov | 7-6,7-6 |
| ITF M25 Kiseljak | 2023/06/01 16:15 | Mohamed Safwat v Kirill Kivattsev | 6-7,4-6 |
| ITF M25 Kiseljak | 2023/05/31 10:55 | Brandon Walkin v Kirill Kivattsev | 6-7,6-7 |
| ITF M15 Wroclaw | 2023/06/28 13:05 | Olaf Pieczkowski v Filip Duda | 6-2,6-2 |
| ITF M25 Poprad | 2023/06/21 09:50 | Olaf Pieczkowski v Toby Alex Kodat | 0-6,1-6 |
| ITF M15 Litija | 2023/06/15 12:45 | Luca Wiedenmann v Olaf Pieczkowski | 6-3,6-0 |
| ITF M15 Litija | 2023/06/14 12:10 | Nikola Basic v Olaf Pieczkowski | 0-6,2-6 |
| ITF M15 Costanza | 2023/06/01 08:00 | Radu Mihai Papoe v Olaf Pieczkowski | 6-1,6-4 |
| ITF M15 Costanza | 2023/05/30 10:35 | Joao Victor C Loureiro v Olaf Pieczkowski | 4-6,6-1,4-6 |
| ITF M15 Pazardzhik | 2023/05/24 14:00 | Leonardo Rossi v Olaf Pieczkowski | 7-6,7-6 |
| ITF M15 Monastir | 2023/03/22 08:30 | Olaf Pieczkowski v Buvaysar Gadamauri | 2-6,6-3,2-6 |