Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF Women Caslano | 2018/08/21 08:00 | Costanza Traversi v Zuger, Sina | 7-5,6-3 |
| ITF Women Aschaffenburg Qual | 2018/07/01 12:00 | Komardina, Anastasiya v Zuger, Sina | 6-2,6-2 |
| ITF Women Aschaffenburg Qual | 2018/07/01 08:00 | Knuettel, Anne v Zuger, Sina | 2-6,4-6 |
| ITF Women Verbier | 2018/06/26 07:30 | Zuger, Sina v Ochsner, Svenja | 6-3,3-6,4-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/05/30 09:05 | Zuger, Sina v Kulikova, Yulia | 2-6,1-6 |
| Antalya, Qualifications Simples W-WITF-TUR-46A | 2018/05/28 11:05 | Zuger, Sina v Almudena S-L Fernandez | 6-3,6-1 |
| ITF Women Hammamet | 2018/05/17 10:20 | Zuger, Sina v Suvrijn, Jade | 1-6,0-6 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/04/22 12:00 | Zuger, Sina v Tiffany William | 2-6,3-6 |
| ITF - W15 Monastir | 2021/04/11 12:00 | Almudena S-L Fernandez v Gutierrez, Alejandra | 6-3,6-1 |