Stadium: Court 3 Round: 25 Ground: Clay
| ITF Women Charleston Qual | 2018/04/30 14:00 | Xu, Shilin v Januskova, Petra | 7-6,6-1 |
| ITF Women Charlottesville Qual | 2018/04/22 14:00 | Neel, Ingrid v Januskova, Petra | 6-4,6-2 |
| ITF Women Solarino | 2018/03/06 09:00 | Januskova, Petra v Koelzer, Romy | 2-6,6-3,5-7 |
| ITF Women Solarino | 2018/02/28 08:30 | Januskova, Petra v Tayisiya Morderger | 2-6,2-6 |
| ITF Women Solarino | 2018/02/27 11:55 | Januskova, Petra v Anastasia Abbagnato | 7-6,6-2 |
| ITF Women Solarino | 2018/02/20 10:00 | Palkina, Ksenia v Januskova, Petra | 6-4,6-4 |
| ITF Women Trnava | 2018/02/04 15:00 | Januskova, Petra v Sedlackova, Petra | 6-2,1-6,0-6 |
| ITF Women Stuttgart | 2018/01/22 09:00 | Arlinda Rushiti v Januskova, Petra | 6-2,7-6 |
| ITF Women Cagnes-Sur-Mer Qual | 2018/05/05 08:00 | Sara Cakarevic v Suvrijn, Jade | 6-3,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/27 08:30 | Suvrijn, Jade v Arshinkova, Petia | 3-6,0-6 |
| ITF Women Hammamet | 2018/03/13 08:30 | Clara Burel v Suvrijn, Jade | 3-6,6-1,6-4 |
| ITF Women Hammamet | 2018/03/08 08:30 | Suvrijn, Jade v Andreea Prisacariu | 2-6,6-7 |
| ITF Women Hammamet | 2018/03/07 10:50 | Suvrijn, Jade v Ardidiacono, Frederica | 6-7,6-1,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/15 07:00 | Suvrijn, Jade v Caregaro, Martina | 6-1,6-7,4-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/13 07:00 | Suvrijn, Jade v Burrage, Jodie Anna | 6-2,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/06 07:30 | Suvrijn, Jade v Eliessa Vanlangendonck | 6-4,5-7,1-6 |