| Welsh Int. | 2019/11/29 17:00 | Ditlev Jaeger Holm v Resch, Lukas | L | 2-0 |
| Welsh Int. | 2019/11/29 12:20 | Savin, Cristian v Resch, Lukas | W | 0-2 |
| Welsh Int. | 2019/11/28 14:00 | Resch, Lukas v Luis Enrique Penalver | W | 2-0 |
| Welsh Int. Qual | 2019/11/28 10:00 | Resch, Lukas v Jones, David | W | 2-0 |
| Welsh Int. Qual | 2019/11/27 14:00 | Resch, Lukas v Toledano, Tomas | W | 2-1 |
| Slovenia Future Series Qual | 2019/11/21 16:10 | Rydstrom, Alexander v Resch, Lukas | W | 0-2 |
| Slovenia Future Series Qual | 2019/11/21 09:45 | Krivec, Gasper v Resch, Lukas | W | 0-2 |
| SaarLorLux Open 2019, MS | 2019/10/30 16:40 | Resch, Lukas v Max Weisskirchen | L | 0-2 |
| Hungarian Int. Qual | 2019/10/30 10:00 | Ragnar Sepp v Markus Barth | L | 0-2 |
| Czech Open Qual | 2019/09/26 10:15 | Rikheim, Vegard v Ragnar Sepp | L | 2-0 |
| Lithuanian Int. Qual | 2019/06/06 06:00 | Ragnar Sepp v Hunt, Ben | L | 0-2 |
| Latvia Int. Qual | 2019/05/30 11:00 | Ragnar Sepp v Mateusz Danielak | L | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/11/14 13:00 | Ragnar Sepp v Julien Scheiwiller | L | 0-2 |