| Gian-David Klauser |
| 14&U R8 1.226 |
| Tour | Date | Rencontre | |||
| 1 | 5.6 | B15&U | Tennis an der Birs / Liestal | - Yannic Lüthi R8
- Michal Remen R9 | 2:6 6:0 4:6 |
| 2 | 12.6 | B15&U | Tennis an der Birs / Breitenbach 1 | Marc Grunauer R8 | 6:1 3:6 6:2 |
| 3 | 23.6 | B15&U | Tennis an der Birs / Bruderholz | David Elia Stockinger R5 | 3:6 2:6 |
| - Adrian Denzler R5
- David Elia Stockinger R5 | 3:6 0:6 | ||||
