Stadium: Court 9 Round: 26 Ground: Clay
| ITF M15 Bucharest | 2021/05/26 13:55 | Stefan Palosi v Nicolae Frunza | 6-3,6-7,3-6 |
| ITF M15 Bucharest | 2021/05/25 13:40 | Nicolae Frunza v Bogdan Borza | 6-2,6-1 |
| UTR Pro Tennis Series Bucharest | 2021/05/23 07:00 | Nicolae Frunza v Colin Sinclair | 5-6 |
| UTR Pro Tennis Series Bucharest | 2021/05/22 11:00 | Nicolae Frunza v Yanais Laurent | 6-1,2-3 |
| UTR Pro Tennis Series Bucharest | 2021/05/21 10:00 | Nicolae Frunza v Vladimir Filip | 7-6,6-3 |
| UTR Pro Tennis Series Bucharest | 2021/05/19 07:00 | Nicolae Frunza v Vlad Andrei Dancu | 6-1,7-5 |
| UTR Pro Tennis Series Bucharest | 2021/05/18 07:00 | Nicolae Frunza v Dan Alexandru Tomescu | 3-6,6-3,3-5 |
| UTR Pro Tennis Series Bucharest | 2021/05/17 09:00 | Nicolae Frunza v Hugo Voljacques | 6-1,6-5 |
| ITF M15 Bucharest | 2021/05/25 14:00 | Clement Tabur v Oscar Jose Gutierrez | 4-6,2-6 |
| ITF M25 Vic | 2021/05/19 12:10 | Michael Geerts v Oscar Jose Gutierrez | 6-2,6-3 |
| ITF M25 Vic | 2021/05/18 08:00 | Oscar Jose Gutierrez v Facundo Juarez | 2-6,3-6 |
| ITF M25 Vic | 2021/05/17 08:00 | Oscar Jose Gutierrez v Vicente O Moratalla | 6-2,6-0 |
| ITF M15 Valldoreix | 2021/05/13 07:55 | Alex M Pujolras v Oscar Jose Gutierrez | 7-5,6-2 |
| ITF M15 Valldoreix | 2021/05/12 11:30 | Miguel Damas v Oscar Jose Gutierrez | 4-6,6-7 |
| ITF M15 Monastir | 2021/05/04 10:30 | Oscar Jose Gutierrez v Erik Crepaldi | 4-6,0-6 |
| ITF M15 Monastir | 2021/04/29 11:20 | Remy Bertola v Oscar Jose Gutierrez | 6-7,7-6,6-2 |