Stadium: Court 10 Round: 26 Ground: Clay
| ITF - M25 Haga | 2023/07/04 10:00 | Eric Vanshelboim v Brian Bozemoj | 6-3,6-1 |
| ITF - M15 Celje | 2023/06/28 14:45 | Eric Vanshelboim v Filip Jeff Planinsek | 6-2,2-6,6-4 |
| Challenger Lyon | 2023/06/12 10:00 | Maxime Janvier v Eric Vanshelboim | 6-2,6-3 |
| Challenger Lyon | 2023/06/11 14:50 | Mirko Martinez v Eric Vanshelboim | 4-6,6-4,6-7 |
| ITF - M15 Addis Ababa | 2023/05/27 08:15 | Rishab Agarwal v Eric Vanshelboim | 6-7,6-2,6-0 |
| ITF - M15 Addis Ababa | 2023/05/26 08:30 | Karan Singh v Eric Vanshelboim | 2-6,6-4,3-6 |
| ITF - M15 Addis Ababa | 2023/05/25 09:25 | Chirag Duhan v Eric Vanshelboim | 1-6,1-6 |
| ITF - M15 Addis Ababa | 2023/05/23 05:25 | Hong Kit Wong v Eric Vanshelboim | 0-6,7-6,4-6 |
| ITF - M25 Haga | 2023/07/04 12:40 | Dax Donders v Olaf Pieczkowski | 6-7,6-4,2-6 |
| ITF - M15 Wroclaw | 2023/06/29 08:00 | Kirill Kivattsev v Olaf Pieczkowski | 4-6,6-0,6-1 |
| 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 Constanta | 2023/06/01 08:00 | Radu Mihai Papoe v Olaf Pieczkowski | 6-1,6-4 |
| ITF - M15 Constanta | 2023/05/30 10:35 | Joao Victor C Loureiro v Olaf Pieczkowski | 4-6,6-1,4-6 |