Stadium: Court 2 Round: 25 Ground: Clay
| ITF Italy F31 | 2018/10/13 15:00 | Apostol, Bogdan Ionut v Frunza, Nicolae | 2-6,3-6 |
| ITF Romania F9 | 2017/08/09 06:30 | Frunza, Nicolae v Apostol, Bogdan Ionut | 4-6,5-7 |
| ITF Tunisia F5 | 2016/02/08 12:00 | Frunza, Nicolae v Apostol, Bogdan Ionut | 7-5,6-7,3-6 |
| Challenger Napoli | 2021/10/04 08:00 | Apostol, Bogdan Ionut v Petros Tsitsipas | 6-3,6-2 |
| Challenger Napoli | 2021/10/03 10:40 | Francesco Forti v Apostol, Bogdan Ionut | 6-7,7-5,3-6 |
| ITF M15 Sozopol | 2021/09/16 08:05 | Ryan James Storrie v Apostol, Bogdan Ionut | 6-3,6-1 |
| ITF M15 Sozopol | 2021/09/14 14:00 | Yanaki Milev v Apostol, Bogdan Ionut | 6-7,6-7 |
| ITF M15 Curtea de Arges | 2021/08/10 07:00 | Apostol, Bogdan Ionut v Vlad Andrei Dancu | 3-6,4-6 |
| ITF M15 Curtea de Arges | 2021/08/09 07:00 | Apostol, Bogdan Ionut v Louis Allen | 6-2,6-3 |
| ITF M25 Pitesti | 2021/08/03 09:50 | Chun Hsin Tseng v Apostol, Bogdan Ionut | 3-6,6-3,7-5 |
| ITF M25 Kottingbrunn | 2021/07/23 08:30 | Apostol, Bogdan Ionut v Hampel, Lenny | 1-6,6-4,5-7 |
| Challenger Sibiu | 2021/09/27 09:50 | Frunza, Nicolae v Nicholas David Ionel | 6-4,3-6,6-7 |
| Challenger Sibiu | 2021/09/26 11:10 | Oleksii Krutykh v Frunza, Nicolae | 2-6,6-7 |
| Challenger Bucharest | 2021/09/21 07:00 | Frunza, Nicolae v Horansky, Filip | 6-7,4-6 |
| Challenger Banja Luka | 2021/09/05 09:00 | Frunza, Nicolae v Cuevas, Martin | 4-6,6-7 |
| Challenger Warsaw | 2021/08/22 10:50 | Alexander Shevchenko v Frunza, Nicolae | 6-1,6-2 |
| ITF M15 Curtea de Arges | 2021/08/12 08:55 | Cacao, Tiago v Frunza, Nicolae | 6-4,6-4 |
| ITF M15 Curtea de Arges | 2021/08/11 13:50 | Frunza, Nicolae v Ray Ho | 6-4,6-7,6-3 |
| ITF M25 Pitesti | 2021/08/05 12:20 | Sebastian Gima v Frunza, Nicolae | 6-4,5-7,6-1 |