| ITF Women Sandelfjord | 2018/07/24 14:00 | Malene Helgo v Astrid Wanja Brune Olsen | 6-0,6-1 |
| ITF Women Vienna | 2018/07/16 12:25 | Astrid Wanja Brune Olsen v Lenka Jurikova | 1-6,0-6 |
| ITF Women Amstelveen | 2018/07/12 11:15 | Astrid Wanja Brune Olsen v Ida Jarlskog | 2-6,3-6 |
| ITF Women Amstelveen | 2018/07/11 09:00 | Kelia Le Bihan v Astrid Wanja Brune Olsen | 5-7,5-7 |
| ITF Women Amstelveen | 2018/07/09 11:30 | Nynke Hamburg v Astrid Wanja Brune Olsen | 0-6,2-6 |
| ITF Women Amstelveen | 2018/07/08 09:30 | Astrid Wanja Brune Olsen v Anastasiya Mulder | 6-1,6-0 |
| ITF Women Amstelveen | 2018/07/08 08:00 | Astrid Wanja Brune Olsen v Cassandre Thebault | 7-5,6-1 |
| ITF Women Den Haag Qual | 2018/07/02 14:15 | Astrid Wanja Brune Olsen v Maelys Bougrat | 3-6,6-0,4-6 |