Stadium: Court 2 Round: 54 Ground: Clay
| ITF W60 Vitoria-Gasteiz | 2021/07/11 09:35 | Laetitia Pulchartova v Diana Maria Mihail | 6-0,6-2 |
| ITF W25 Madrid | 2021/06/13 12:00 | Diana Maria Mihail v Alica Rusova | 0-6,1-6 |
| ITF W15 Vilnius | 2021/06/07 09:00 | Diana Maria Mihail v Valeria Gorlats | 2-6,0-6 |
| ITF W15 Tbilisi | 2021/05/17 05:30 | Anamaria Kurtsikashvili v Diana Maria Mihail | 3-6,6-4,10-3 |
| ITF W15 Monastir | 2021/04/05 12:00 | Diana Maria Mihail v Francesca Curmi | 2-6,0-6 |
| ITF W15 Monastir | 2021/03/28 14:00 | Diana Maria Mihail v Ines Bekrar | 1-6,2-6 |
| ITF W15 Monastir | 2021/03/21 15:00 | Diana Maria Mihail v Ilaria Sposetti | 4-6,1-6 |
| ITF W15 Monastir | 2021/03/14 13:00 | Diana Maria Mihail v Laetitia Pulchartova | 1-6,1-6 |
| ITF W15 Savitaipale | 2021/07/26 07:00 | Marissa Minetti v Natalia Fehr | 6-3,6-1 |