Stadium: Court 3 Round: 44 Ground: Hardcourt outdoor
| ITF W15 Cairo | 2021/09/05 11:00 | Diana Maria Mihail v Divine Dasam Nweke | 3-6,5-7 |
| ITF W15 Cairo | 2021/08/30 08:00 | Diana Maria Mihail v Natalija Senic | 1-6,2-6 |
| ITF W15 Savitaipale | 2021/07/27 07:00 | Diana Maria Mihail v Marissa Minetti | 2-6,2-6 |
| 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 |