| Challenger Series TT | 2022/10/03 11:50 | Dennis Klein v Alvaro Gainza | L | 3-0 |
| Challenger Series TT | 2023/08/17 08:30 | Marius Henninger v Alvaro Gainza | L | 3-0 |
| TT Star Series | 2023/05/20 10:45 | Martin Olejnik v Alvaro Gainza | W | 0-3 |
| TT Star Series | 2023/05/20 08:15 | Dmitrij Prokopcov v Alvaro Gainza | L | 3-1 |
| TT Star Series | 2023/05/20 06:35 | Tomas Tregler v Alvaro Gainza | L | 3-0 |
| TT Star Series | 2023/05/19 13:45 | Alvaro Gainza v Viktor Yefimov | L | 0-3 |
| TT Star Series | 2023/05/19 09:15 | Alvaro Gainza v Ivor Ban | L | 0-3 |
| TT Star Series | 2023/05/19 07:45 | Juan Perez v Alvaro Gainza | L | 3-2 |
| Challenger Series TT | 2023/04/25 11:30 | Tobias Slanina v Alvaro Gainza | L | 3-2 |
| Challenger Series TT | 2023/08/17 06:30 | Marco Stefanidis v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/07/27 09:50 | Dennis Klein v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/07/27 07:50 | Dennis Klein v Guillaume Alcayde | W | 3-1 |
| Challenger Series TT | 2023/07/11 13:30 | Dennis Klein v Benjamin Fruchart | W | 3-0 |
| Challenger Series TT | 2023/07/11 11:25 | Dennis Klein v Akos Kishegyi | W | 3-0 |
| Challenger Series TT | 2023/07/11 09:10 | Dennis Klein v Armin Alicic | W | 3-1 |
| Challenger Series TT | 2023/07/10 19:50 | Dennis Klein v Kestutis Zeimys | W | 3-0 |
| Challenger Series TT | 2023/07/10 17:10 | Dennis Klein v Samuel Amann | W | 3-0 |