| Uganda Int. | 02/22 07:20 | - | Jean Bernard Bongout v Markus Barth | W | 0-2 | |
| Island - Int. | 01/28 11:20 | - | Mads Juel Moller v Markus Barth | L | 2-0 | |
| Island - Int. | 01/27 13:40 | - | Lukasz Cimosz v Markus Barth | W | 0-2 | |
| Estonian Int. | 01/13 10:55 | - | Justin Hoh v Markus Barth | L | 2-0 | |
| Estonian Int. - Kval | 01/12 16:45 | - | Markus Barth v Julien Scheiwiller | W | 2-1 | |
| Estonian Int. - Kval | 01/12 10:30 | - | Richard Kuhl v Markus Barth | W | 1-2 | |
| Estonian Int. - Kval | 01/12 08:35 | - | Tony Lindelof v Markus Barth | W | 0-2 | |
| Slovenien - Future Series | 11/26 08:40 | - | Simon Baron-Vezilier v Markus Barth | L | 2-0 | |
| Slovenien - Future Series | 11/25 13:50 | - | Albin Carl Hjelm v Markus Barth | W | 0-2 | |
| Norwegian Int. | 11/11 13:20 | - | Johnnie Torjussen v Markus Barth | L | 2-0 | |
| Norwegian Int. - Kval | 11/10 15:30 | - | Jonathan Dresp v Markus Barth | W | 0-2 | |
| Israel Open | 10/27 18:50 | - | Markus Barth v Enogat Roy | L | 1-2 | |
| Czech Open - Kval | 10/20 15:45 | - | Mehran Shahbazi v Markus Barth | L | 2-0 | |
| Czech Open - Kval | 10/20 10:30 | - | Michael Tomic v Markus Barth | W | 1-2 | |
| Kroatien Int. | 09/30 08:40 | - | Hai Chao Liu v Markus Barth | L | 2-1 | |
| EM | 04/26 09:30 | - | Markus Barth v Milan Dratva | L | 0-2 | |
| Dutch International - Kval | 04/13 07:00 | - | Amaury Lievre v Markus Barth | - | Walkover | |
| Swedish Open | 01/21 09:20 | - | Markus Barth v Daniil Dubovenko | L | 0-2 | |
| Swedish Open - Kval | 01/20 08:40 | - | Markus Barth v Jakob Houe | - | Walkover | |
| Italian Int. - Kval | 12/16 19:05 | - | Markus Barth v Ludvig Petre Olsson | L | 0-2 | |
| Italian Int. - Kval | 12/16 16:45 | - | Senne Houthoofd v Markus Barth | W | 0-2 | |
| Italian Int. - Kval | 12/16 13:15 | - | Rasmus Careo Christensen v Markus Barth | W | 0-2 | |
| Welsh Int Qual | 12/01 10:10 | - | Markus Barth v Ben Hunt | L | 0-2 | |
| Czech Open - Kval | 10/21 09:20 | - | Kilian Meusburger v Markus Barth | L | 2-1 | |
| Bulgarian Int | 10/08 12:00 | - | Markus Barth v Meiraba Luwang Maisnam | L | 0-2 | |
| Bulgarian Int | 10/08 07:10 | - | Markus Barth v Enogat Roy | W | 2-1 | |
| Ukraina - Int. | 09/08 09:20 | - | Markus Barth v Ken Yon Ong | L | 0-2 | |
| Ukraina - Int. | 09/07 14:00 | - | Markus Barth v Shahyar Shaqeem | - | Walkover | |
| Slovak Open | 02/28 10:00 | - | Yu Jen Chi v Markus Barth | L | 2-1 | |
| Slovak Open | 02/27 15:05 | - | Alejandro Alcala v Markus Barth | W | 1-2 |