Stadium: Hard Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/21 09:00 | Eduardo Cohen v Constantinos Papavasiliou | 7-5,6-2 |
| ITF M15 Heraklion | 2021/11/07 11:00 | Moritz Poswiat v Constantinos Papavasiliou | 7-5,6-1 |
| ITF M15 Cancun | 2021/10/10 21:00 | Constantinos Papavasiliou v Juan Sebastian Osorio | 0-6,1-6 |
| ITF M25 Sintra | 2021/09/12 12:00 | Constantinos Papavasiliou v Pedro D L R Bueno | 1-6,2-6 |
| ITF M25 Sintra | 2021/09/05 12:00 | Constantinos Papavasiliou v Martim Simoes | 1-6,3-6 |
| ITF M15 Cairo | 2021/01/10 14:00 | Babji Siva Atturu v Constantinos Papavasiliou | 6-1,5-7,10-5 |
| ITF M15 Cancun | 2019/12/08 14:00 | Constantinos Papavasiliou v Jack Vance | 1-6,4-6 |
| ITF Turkey F38 | 2018/11/24 09:30 | Constantinos Papavasiliou v Ivan Zaytsev | 6-1,5-7,6-7 |
| ITF M15 Heraklion | 2021/11/21 11:00 | Dong Ju Kim v Andrei Cuceu | 6-3,6-0 |
| ITF M15 Heraklion | 2021/11/15 08:00 | Deney Wassermann v Andrei Cuceu | 6-2,6-1 |
| ITF M15 Heraklion | 2021/11/07 11:00 | Andrei Cuceu v Charles Tzicas | 4-6,2-6 |
| ITF M15 Heraklion | 2021/11/03 11:55 | Andrei Cuceu v Alessandro Spadola | 2-6,3-6 |
| ITF M15 Heraklion | 2021/11/02 08:30 | Pietro Pirolt v Andrei Cuceu | 2-6,2-6 |
| ITF M15 Cairo | 2021/09/13 07:00 | Leonardo Aboian v Andrei Cuceu | 6-2,6-2 |
| ITF M15 Cairo | 2021/09/12 08:00 | Andrei Cuceu v Stefan Cizelj-Zivkovic | 6-4,6-3 |
| ITF M15 Cairo | 2021/09/08 08:00 | Jakub Wojcik v Andrei Cuceu | 6-3,6-2 |