| Welsh Int. Qual | 2019/11/27 11:00 | Stewart, Adam v Markus Barth | W | 0-2 |
| Norwegian Int. Qual | 2019/11/07 17:00 | Markus Barth v Joakim Oldorff | L | 0-2 |
| Norwegian Int. Qual | 2019/11/07 12:00 | Markus Barth v Kaeseler, Rasmus | W | 2-0 |
| Hungarian Int. Qual | 2019/10/30 10:00 | Ragnar Sepp v Markus Barth | W | 0-2 |
| Czech Open Qual | 2019/09/26 13:25 | Hougaard, J. v Markus Barth | W | 0-2 |
| Czech Open Qual | 2019/09/26 11:35 | Tadeas Brazda v Markus Barth | W | 0-2 |
| Lithuanian Int. Qual | 2019/06/06 10:40 | Schwarz, Jonas v Markus Barth | W | 1-2 |
| Latvia Int. Qual | 2019/05/31 07:30 | Markus Barth v Parkhoei, Axel Henrik | L | 1-2 |
| Welsh Int. Qual | 2019/11/27 10:00 | Jardim, Hugo v Piris, Carlos | W | 0-2 |
| Slovenia Future Series Qual | 2019/11/21 10:45 | Piris, Carlos v Jaeger, Jonas | L | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/03/07 14:45 | Kim Kristensen, D. v Piris, Carlos | L | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/06/14 08:25 | Purusothaman, Thiyagarajan v Piris, Carlos | W | 0-2 |