Stadium: Center Court Round: 28
| ITF Women Sao Paulo | 2018/03/03 14:00 | Julia Grabher v Haas, Barbara | 6-2,6-7,6-3 |
| ITF Women Leipzig | 2018/08/17 12:00 | Kolodziejova, Miriam v Haas, Barbara | 2-6,0-6 |
| ITF Women Leipzig | 2018/08/16 10:30 | Raluca Georgiana Serban v Haas, Barbara | 2-6,4-6 |
| ITF Women Leipzig | 2018/08/15 09:00 | Lucrezia Stefanini v Haas, Barbara | 6-7,3-6 |
| ITF Women Hechingen | 2018/08/08 16:00 | Tamara Korpatsch v Haas, Barbara | 2-6,6-1,6-3 |
| ITF Women Bad Saulgau | 2018/08/04 12:00 | Laura Siegemund v Haas, Barbara | 4-6,6-3,6-4 |
| ITF Women Bad Saulgau | 2018/08/03 13:40 | Carolina Alves v Haas, Barbara | 1-6,5-7 |
| ITF Women Bad Saulgau | 2018/08/02 14:35 | Haas, Barbara v Schnyder, Patty | 6-3,4-6,6-4 |
| ITF Women Bad Saulgau | 2018/08/01 12:40 | Emily Seibold v Haas, Barbara | 6-4,1-6,0-6 |
| ITF Women Leipzig | 2018/08/17 13:35 | Isabella Shinikova v Julia Grabher | 3-6,4-6 |
| ITF Women Leipzig | 2018/08/16 13:00 | Jesika Maleckova v Julia Grabher | 4-6,5-7 |
| ITF Women Leipzig | 2018/08/14 09:00 | Anna Klasen v Julia Grabher | 6-7,4-6 |
| ITF Women Hechingen | 2018/08/10 15:00 | Julia Grabher v Tamara Korpatsch | 3-6,3-6 |
| ITF Women Hechingen | 2018/08/08 11:20 | Julia Grabher v Lex, Alia | 6-4,6-3 |
| ITF Women Bad Saulgau | 2018/08/02 09:00 | Julia Grabher v Carolina Alves | 3-6,4-6 |
| ITF Women Bad Saulgau | 2018/08/01 12:05 | Julia Grabher v Heisen, Vivian | 6-2,6-3 |
| WTA Gstaad Qual | 2018/07/14 08:00 | Guarachi Mathison, Alexa v Julia Grabher | 4-6,6-1,6-1 |