Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF - W15 Sharm El Sheikh | 2021/10/06 08:00 | Mihail, Diana Maria v Yu Shan | 0-6,2-6 |
| ITF W15 Cairo | 2021/09/05 11:00 | Mihail, Diana Maria v Divine Dasam Nweke | 3-6,5-7 |
| ITF W15 Cairo | 2021/08/30 08:00 | Mihail, Diana Maria v Natalija Senic | 1-6,2-6 |
| ITF W15 Savitaipale | 2021/07/27 07:00 | Mihail, Diana Maria v Marissa Minetti | 2-6,2-6 |
| ITF W60 Vitoria-Gasteiz | 2021/07/11 09:35 | Pulchartova, Laetitia v Mihail, Diana Maria | 6-0,6-2 |
| ITF W25 Madrid | 2021/06/13 12:00 | Mihail, Diana Maria v Alica Rusova | 0-6,1-6 |
| ITF W15 Vilnius | 2021/06/07 09:00 | Mihail, Diana Maria v Gorlats, Valeria | 2-6,0-6 |
| ITF W15 Tbilisi | 2021/05/17 05:30 | Anamaria Kurtsikashvili v Mihail, Diana Maria | 3-6,6-4,10-3 |
| ITF - W15 Sharm El Sheikh | 2021/10/04 09:00 | Magun, Lea v Zongyu Li | 6-3,3-6,10-7 |
| ITF - W15 Sharm El Sheikh | 2021/10/03 09:00 | Deepoem, Vera v Zongyu Li | 2-6,4-6 |