Round: 45 Ground: Clay
| ITF Women Budapest | 2018/08/22 10:20 | Natalia Vajdova v Agnes Bukta | 4-6,2-6 |
| ITF Women Budapest | 2018/08/21 10:40 | Natalia Vajdova v Adrienn Horvath | 6-2,6-3 |
| ITF Women Vienna | 2018/07/17 11:35 | Natalia Vajdova v Mira Antonitsch | 5-7,3-6 |
| ITF Women Trnava Qual | 2018/05/12 16:35 | Natalia Vajdova v Reka-Luca Jani | 4-6,2-6 |
| ITF Women Sharm El Sheikh | 2018/03/29 09:10 | Natalia Vajdova v Yuliya Hatouka | 7-6,3-6,2-6 |
| ITF Women Sharm El Sheikh | 2018/03/28 08:00 | Natalia Vajdova v Nadja Gilchrist | 6-3,6-3 |
| ITF Women Sharm El Sheikh | 2018/03/23 08:00 | Natalia Vajdova v Dalila Spiteri | 1-6,4-6 |
| ITF Women Sharm El Sheikh | 2018/03/22 10:45 | Natalia Vajdova v Maria G Carrasco | 6-7,6-3,7-6 |
| ITF Women Kyoto | 2018/09/02 01:00 | Ayano Sonoda v Anri Nagata | 1-6,1-6 |
| ITF Women Nanao | 2018/08/26 03:25 | Kotomi Takahata v Ayano Sonoda | 6-4,6-0 |
| ITF Women Antalya | 2018/06/04 07:30 | Ayano Sonoda v Marie Mettraux | 1-6,1-6 |
| ITF Women Antalya | 2018/05/30 09:10 | Ayano Sonoda v Melis Sezer | 0-6,2-6 |
| ITF Women Antalya Qual | 2018/05/28 11:10 | Ayano Sonoda v Stephanie Belovukovic | 7-6,1-6,5-7 |
| ITF Women Kurume Qual | 2018/05/13 08:40 | Mitsumi Kawasaki v Ayano Sonoda | 6-1,6-1 |
| ITF Women Nishi-Tama | 2018/03/17 01:00 | Ayano Sonoda v Sakura Hosogi | 4-6,4-6 |
| ITF Women Antalya | 2018/01/27 06:30 | Ayano Sonoda v Chihiro Takayama | 0-6,0-6 |