Stadium: Court 4 Round: 25 Ground: Clay
| ITF W15 Knokke | 2021/07/26 17:00 | Perla Nieuwboer v Chiara Tomasetti | 4-6,5-7 |
| ITF W15 Knokke | 2021/07/26 12:30 | Perla Nieuwboer v Laura Boehner | 6-0,6-3 |
| ITF W60 Amstelveen | 2021/07/05 08:00 | Perla Nieuwboer v Tayisiya Morderger | 0-6,0-6 |
| ITF W25 The Hague | 2021/06/27 08:00 | Daniela Vismane v Perla Nieuwboer | 6-4,6-1 |
| ITF W15 Alkmaar | 2021/06/21 15:00 | Elena Jamshidi v Perla Nieuwboer | 2-6,6-2,14-12 |
| ITF W15 Alkmaar | 2021/06/20 14:30 | Sevil Yuldasheva v Perla Nieuwboer | 1-6,4-6 |
| ITF W15 Antalya | 2021/06/15 09:30 | Perla Nieuwboer v Christina Rosca | 2-6,1-6 |
| ITF W15 Antalya | 2021/06/14 07:30 | Perla Nieuwboer v Vanessa I G Popa Teiusanu | 2-6,6-4,10-5 |
| ITF W60 Olomouc | 2021/07/18 13:00 | Adrienn Nagy v Monika Kilnarova | 7-6,5-7,8-10 |
| ITF W15 Prokuplje | 2021/07/08 10:45 | Adrienn Nagy v Natalija Senic | 3-6,6-0,1-6 |
| ITF W15 Prokuplje | 2021/07/06 13:10 | Adrienn Nagy v Draginja Vukovic | 6-3,6-3 |
| ITF W15 Prokuplje | 2021/07/01 08:50 | Ioana Gaspar v Adrienn Nagy | 6-1,6-2 |
| ITF W15 Prokuplje | 2021/06/29 14:20 | Adrienn Nagy v Clara Vlasselaer | 6-1,6-4 |
| ITF W25 Porto | 2021/06/21 15:00 | Adrienn Nagy v Estelle Cascino | 4-6,2-6 |
| ITF W25 Otočec | 2021/06/01 09:35 | Adrienn Nagy v Monika Kilnarova | 5-7,7-5,9-11 |
| ITF W25 Otočec | 2021/05/31 11:05 | Johana Markova v Adrienn Nagy | 6-7,3-6 |