| Challenger Series TT | 2022/12/15 10:10 | Kirill Fadeev v Nikola Grujic | L | 3-1 |
| Challenger Series TT | 2023/02/02 09:30 | Hannes Hormann v Nikola Grujic | W | 2-3 |
| Challenger Series TT | 2023/01/31 11:30 | Makoto Nogami v Nikola Grujic | L | 3-2 |
| Challenger Series TT | 2023/01/31 07:30 | Florian Bluhm v Nikola Grujic | L | 3-0 |
| Challenger Series TT | 2023/01/30 19:30 | Nikola Grujic v Guilherme Teodoro | L | 1-3 |
| Challenger Series TT | 2023/01/30 16:10 | Nikola Grujic v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/01/30 14:10 | Josip Huzjak v Nikola Grujic | L | 3-1 |
| Challenger Series TT | 2023/01/30 11:30 | Albert Vilardell v Nikola Grujic | L | 3-0 |
| Challenger Series TT | 2023/01/30 08:50 | Damian Zech v Nikola Grujic | W | 0-3 |
| Challenger Series TT | 2023/02/02 07:30 | Dennis Klein v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/01/06 13:50 | Kirill Fadeev v Daniel Rinderer | W | 3-1 |
| Challenger Series TT | 2023/01/06 12:25 | Dauud Cheaib v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/01/06 10:10 | Kirill Fadeev v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/01/05 20:50 | Kirill Fadeev v Liang Qiu | W | 3-1 |
| Challenger Series TT | 2023/01/05 18:10 | Kirill Fadeev v Marius Henninger | L | 1-3 |
| Challenger Series TT | 2023/01/05 15:30 | David Kumpel v Kirill Fadeev | W | 0-3 |
| Challenger Series TT | 2023/01/05 12:50 | Daniel Rinderer v Kirill Fadeev | L | 3-2 |