| Challenger Ochsenhausen | 2019/10/31 07:30 | Evgueni Chtchetinine v Alexander Valuch | L | 3-1 |
| Challenger Ochsenhausen | 2019/10/30 11:30 | Anthony Tran v Alexander Valuch | L | 3-2 |
| Challenger Ochsenhausen | 2019/10/30 08:50 | Florian Bluhm v Alexander Valuch | L | 3-2 |
| Euro Team Champs | 2019/09/05 17:00 | Simon Gauzy v Alexander Valuch | L | 3-0 |
| Euro Team Champs | 2019/09/03 09:00 | Carlos Machado v Alexander Valuch | L | 3-1 |
| Japan Open | 2019/06/12 05:00 | Yuya Oshima v Alexander Valuch | L | 4-1 |
| Hong Kong Open | 2019/06/04 01:50 | Alexander Valuch v Siu Hang Lam | L | 2-4 |
| Croatia Open | 2019/05/15 09:00 | Alexander Valuch v Kenji Matsudaira | L | 1-3 |
| Challenger Ochsenhausen | 2019/10/30 13:30 | Josip Huzjak v Gaston Alto | L | 3-1 |
| Challenger Ochsenhausen | 2019/10/30 12:10 | Evgueni Chtchetinine v Gaston Alto | W | 1-3 |
| Challenger Ochsenhausen | 2019/10/30 07:30 | Alexander Echavarria v Gaston Alto | W | 0-3 |
| Paraguay Open | 2019/09/12 18:00 | Alberto Mino v Gaston Alto | L | 4-3 |
| Paraguay Open | 2019/09/11 16:30 | Gaston Alto v Kai Zhang | W | 3-2 |
| Paraguay Open | 2019/09/10 22:45 | Gaston Alto v Diego Hermosilla | W | 3-0 |
| Paraguay Open | 2019/09/10 16:25 | Gaston Alto v Daniel Santos | W | 3-1 |
| Pan American Games | 2019/08/10 18:30 | Jorge Campos v Gaston Alto | W | 2-3 |