Stadium: Court 1 (Ringi) Round: 25 Ground: Clay
| ITF W15 Budapest | 2019/06/26 13:25 | Fiona Ganz v Adrienn Nagy | 2-6,2-6 |
| ITF W25 Klosters | 2019/06/19 08:55 | Michaela Bayerlova v Fiona Ganz | 6-3,6-1 |
| ITF W25 Grado | 2019/05/27 11:00 | Fiona Ganz v Koval, Vlada | 2-6,0-6 |
| ITF - W15 Héraklion | 2019/05/21 07:00 | Fiona Ganz v Oleksandra Oliynykova | 7-5,6-7,3-6 |
| ITF - W15 Héraklion | 2019/05/17 09:10 | Harvison, Isabella v Fiona Ganz | 6-4,3-6,6-0 |
| ITF - W15 Héraklion | 2019/05/16 09:05 | Arkadianou, Anna v Fiona Ganz | 4-6,6-7 |
| ITF - W15 Héraklion | 2019/05/14 12:10 | Elina Nepliy v Fiona Ganz | 3-6,6-7 |
| Chiasso, Singles W-ITF-SUI-01A | 2019/04/24 08:00 | Fiona Ganz v Julia Grabher | 3-6,2-6 |
| ITF - W15 Antalya | 2019/05/15 11:00 | Jenny Duerst v Rittberger, Sabrina | 7-6,6-1 |
| ITF - W15 Antalya | 2019/05/09 08:55 | Rittberger, Sabrina v Ying Zhang | 3-6,6-3,5-7 |
| ITF - W15 Antalya | 2019/05/08 07:15 | Rittberger, Sabrina v Makatsaria, Ana | 7-5,6-0 |
| ITF - W15 Antalya | 2019/05/02 07:15 | Rittberger, Sabrina v Jennifer Luikham | 2-6,4-6 |
| ITF - W15 Antalya | 2019/05/01 08:45 | Rittberger, Sabrina v Uladzislava Zverava | 6-3,6-4 |
| ITF - W15 Antalya | 2019/04/10 11:10 | Rittberger, Sabrina v Julia Stamatova | 3-6,6-1,4-6 |
| ITF - W15 Antalya | 2019/04/09 09:30 | Rittberger, Sabrina v Vicky Van De Peer | 5-7,6-1,10-4 |
| ITF - W15 Antalya | 2019/04/03 08:45 | Jenny Duerst v Rittberger, Sabrina | 2-6,6-3,7-5 |