Round: 1
| Schlieren, Singles M-ITF-SUI-02A | 2019/08/21 10:15 | Staeheli, Luca v Zimmermann, Ilias | 2-6,6-3,6-4 |
| Swiss Tennis Masters | 2020/07/02 13:00 | Zimmermann, Ilias v Louroi Martinez | 2-6,4-6 |
| ITF - M15 Héraklion | 2020/02/11 09:30 | Mattia Bellucci v Zimmermann, Ilias | 6-3,6-4 |
| ITF - M15 Héraklion | 2020/02/10 09:30 | Zimmermann, Ilias v Nincevic, Frane | 7-6,6-2 |
| Horgen, Singles Qualifying M-ITF-SUI-03A | 2019/08/28 09:30 | Zimmermann, Ilias v Gonzalez, Alejandro | 3-6,4-6 |
| Schlieren, Singles M-ITF-SUI-02A | 2019/08/21 10:15 | Staeheli, Luca v Zimmermann, Ilias | 2-6,6-3,6-4 |
| Swiss Tennis Masters | 2020/07/02 15:00 | Staeheli, Luca v Nicolas Parizzia | 5-7,6-7 |
| ITF - M15 Oberhaching | 2020/02/19 14:15 | Staeheli, Luca v Elmar Ejupovic | 3-6,6-7 |
| ITF - M15 Oberhaching | 2020/02/17 12:50 | Emilien Voisin v Staeheli, Luca | 1-6,6-7 |
| ITF - M15 Grenoble | 2020/02/12 12:50 | Stuart Parker v Staeheli, Luca | 6-2,6-1 |
| ITF - M15 Grenoble | 2020/02/10 12:50 | Jakub Paul v Staeheli, Luca | 3-6,6-4,2-10 |
| ITF - M15 Grenoble | 2020/02/09 13:50 | Mayeul Darras v Staeheli, Luca | 4-6,6-3,5-10 |
| ITF - M15 Héraklion | 2019/12/01 09:00 | Staeheli, Luca v Biagio Gramaticopolo | 4-6,4-6 |
| ITF - M15 Héraklion | 2019/11/26 08:00 | Staeheli, Luca v Domagoj Biljesko | 3-6,3-6 |