Stadium: Court 2 Round: 62 Ground: Clay
| ITF W15 Sibenik | 2021/05/18 07:55 | Oleksandra Oliynykova v Diana Martynov | 6-0,6-4 |
| ITF W15 Sibenik | 2021/05/17 11:20 | Adriana Rajkovic v Diana Martynov | 3-6,3-6 |
| ITF W15 Sibenik | 2021/05/16 08:00 | Diana Martynov v Ani Vangelova | 6-1,7-5 |
| ITF W25 Calvi | 2021/04/13 08:00 | Alice Robbe v Diana Martynov | 6-2,6-2 |
| ITF W25 Calvi | 2021/04/12 12:30 | Ginevra Montebruno v Diana Martynov | 1-6,1-6 |
| ITF W15 Le Havre | 2021/03/22 08:25 | Diana Martynov v Lena Papadakis | 6-4,5-7,4-10 |
| ITF W15 Le Havre | 2021/03/21 09:35 | Diana Martynov v Juliette Mazzoni | 6-2,6-1 |
| ITF W15 Villena | 2021/02/09 10:00 | Mihaela Djakovic v Diana Martynov | 6-3,6-1 |
| ITF W15 Bratislava | 2021/03/22 14:00 | Timea Jaruskova v Martina Marusinova | 5-7,6-2,10-8 |
| ITF W15 Bratislava | 2021/03/16 09:00 | Veronika Vlkovska v Martina Marusinova | 7-5,5-7,10-6 |
| ITF W15 Bratislava | 2021/03/15 12:00 | Martina Marusinova v Tara Gancev | 6-1,6-1 |