Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/01/28 08:00 | de Rienzo, Kathleen v Dmitrieva, Sofia | 6-7,3-6 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/01/20 09:00 | Haine Ogata v de Rienzo, Kathleen | 3-6,6-2,6-3 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/01/14 08:00 | de Rienzo, Kathleen v Gilchrist, Nadja | 3-6,1-6 |
| ITF Women Norman Qual | 2017/11/12 17:00 | de Rienzo, Kathleen v Raveena Kingsley | 2-6,0-6 |
| ITF Women Tyler Qual | 2017/10/29 18:10 | Lysa, Yuliya v de Rienzo, Kathleen | 6-4,6-1 |
| ITF Women Florence | 2017/10/17 14:00 | de Rienzo, Kathleen v Ena Shibahara | 0-6,0-6 |
| ITF Women Sumter | 2017/10/07 13:00 | de Rienzo, Kathleen v Victoria Flores | 1-6,0-6 |
| ITF Women Hilton Head Island | 2017/10/02 13:00 | Fusinato, Francesca v de Rienzo, Kathleen | 6-0,7-5 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/18 09:10 | Rosca, Andreea Amalia v Clara Vlasselaer | 7-5,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/17 08:45 | Schippers, Daniela v Clara Vlasselaer | 6-1,6-7,3-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/15 08:00 | Ekaterina Ovcharenko v Clara Vlasselaer | 1-6,0-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/14 10:30 | Cavero Roeper, Ana Jocelijn v Clara Vlasselaer | 5-7,1-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/09 08:00 | Clara Vlasselaer v Palkina, Ksenia | 0-6,4-6 |