Stadium: C1 Round: 45
| ITF Turkey F31 | 2018/10/07 07:00 | Jonas Schaer v Cosmin Ontica | 2-6,7-5,4-6 |
| ITF Turkey F31 | 2018/10/06 07:00 | Jonas Schaer v Charles Tzicas | 3-6,7-6,6-1 |
| ITF Turkey F30 | 2018/10/01 07:30 | Lucas Gerch v Jonas Schaer | 6-4,6-4 |
| ITF Turkey F30 | 2018/09/30 10:30 | Jonas Schaer v Stefan Cizelj-Zivkovic | 6-2,6-3 |
| ITF Switzerland F5 | 2018/09/03 07:30 | Eduardo Dischinger v Jonas Schaer | 6-3,6-0 |
| ITF Switzerland F5 | 2018/09/02 08:30 | Jonas Schaer v Flamur Selmani | 6-0,6-0 |
| ITF Switzerland F1 Qual | 2018/02/05 10:20 | Fran Zvonimir Zgombic v Jonas Schaer | 3-6,6-2,6-2 |
| ITF Switzerland F1 Qual | 2017/02/05 11:30 | Simeon Rossier v Jonas Schaer | 6-3,6-2 |
| ITF M15 Veigy-Foncenex | 2019/01/21 17:35 | Luca Staeheli v Ugo Blanchet | 3-6,4-6 |
| ITF M15 Veigy-Foncenex | 2019/01/21 12:05 | Luca Staeheli v Brian Bencic | 6-3,7-6 |
| ITF Tunisia F42 | 2018/11/29 10:45 | Luca Staeheli v Moez Echargui | 6-4,2-6,6-7 |
| ITF Tunisia F42 | 2018/11/28 11:55 | Mason Recci v Luca Staeheli | 5-7,6-4,6-7 |
| ITF Tunisia F41 | 2018/11/22 08:00 | Luca Staeheli v Savriyan Danilov | 2-6,4-6 |
| ITF Tunisia F41 | 2018/11/21 09:00 | Luca Staeheli v Simon Beaupain | 2-6,6-2,6-2 |
| ITF Tunisia F41 | 2018/11/19 10:30 | Luca Staeheli v Diego Matos | 7-6,7-6 |
| ITF Tunisia F36 | 2018/10/15 08:30 | Luca Staeheli v Gregorio Cordonnier | 6-4,6-2 |