| ITF M15 Alaminos-Larnaca | 04/24 07:00 | 44 | Samuele Pieri v Papavasiliou, Constantinos | 6-0,6-2 | |
| ITF M25 Quinta Do Lago | 03/08 16:30 | 62 | 호드킨, 신 v Papavasiliou, Constantinos | 6-1,6-0 | |
| ITF M25 Quinta Do Lago | 03/07 13:55 | 62 | Duarte Correia v Papavasiliou, Constantinos | 6-4,3-6,8-10 | |
| ITF M25 Setubal | 08/29 09:00 | 62 | 램블링, 라파엘 v Papavasiliou, Constantinos | 6-1,6-1 | |
| ITF M25 Setubal | 08/28 09:00 | 62 | Semedo, Miguel v Papavasiliou, Constantinos | 6-7,6-2,8-10 | |
| ITF M25 Santa Margherita | 04/24 12:00 | 54 | Raffael Schaer v Papavasiliou, Constantinos | 6-2,6-1 | |
| ITF M25 Portimao | 03/06 10:30 | 62 | Papavasiliou, Constantinos v 만실라 디에즈, 마리오 | 1-6,0-6 | |
| ITF M25 Faro | 02/27 12:45 | 62 | Faria, Jaime v Papavasiliou, Constantinos | 6-0,6-2 | |
| ITF M25 Vale Do Lobo | 02/20 15:15 | 62 | Papavasiliou, Constantinos v 던칸, 스코트 | 0-6,3-6 | |
| ITF M25 Cancun | 02/13 20:00 | 44 | Enzo Frances Tessari v Papavasiliou, Constantinos | 6-0,6-1 | |
| ITF M15 Cancun | 01/17 15:00 | 44 | 우레아, 안드레스 v Papavasiliou, Constantinos | 6-0,6-1 | |
| ITF M15 Cancun | 01/16 17:30 | 44 | Reyna, Ricardo v Papavasiliou, Constantinos | 3-6,2-6 | |
| ITF M15 Heraklion | 11/28 08:00 | 62 | Papavasiliou, Constantinos v Andrei Cuceu | 2-6,7-5,6-10 | |
| ITF M15 Heraklion | 11/21 09:00 | 62 | 코헨, 에두알도 v Papavasiliou, Constantinos | 7-5,6-2 | |
| ITF M15 Heraklion | 11/07 11:00 | 62 | Poswiat, Moritz v Papavasiliou, Constantinos | 7-5,6-1 | |
| ITF M15 Cancun | 10/10 21:00 | 44 | Papavasiliou, Constantinos v Osorio, Juan Sebastian | 0-6,1-6 | |
| ITF M25 Sintra | 09/12 12:00 | 62 | Papavasiliou, Constantinos v Pedro D L R Bueno | 1-6,2-6 | |
| ITF M25 Sintra | 09/05 12:00 | 62 | Papavasiliou, Constantinos v 시모에스, 마르팀 | 1-6,3-6 | |
| ITF M15 Cairo | 01/10 14:00 | 62 | 아투루, 바브지 시바 v Papavasiliou, Constantinos | 6-1,5-7,10-5 | |
| ITF M15 Cancun | 12/08 14:00 | 44 | Papavasiliou, Constantinos v Vance, Jack | 1-6,4-6 | |
| ITF Turkey F41 | 12/17 09:30 | 62 | Papavasiliou, Constantinos v Sanson, Maximilien | Walkover | |
| ITF Turkey F38 | 11/24 09:30 | 44 | Papavasiliou, Constantinos v 자이트세브, 이반 | 6-1,5-7,6-7 | |
| ITF Greece F8 | 11/13 09:25 | 25 | 세이페르트, 스테판 v Papavasiliou, Constantinos | 6-0,6-1 | |
| ITF Greece F7 | 11/03 07:30 | 62 | Papavasiliou, Constantinos v 쿠리타, 켄타 | Retired | |
| ITF Ukraine F4 | 08/26 07:00 | 62 | Papavasiliou, Constantinos v 바리첸코, 올렉산들 | 0-6,3-6 | |
| ITF Germany F11 | 08/05 08:00 | 62 | 레베르그, 마르빈 v Papavasiliou, Constantinos | 6-1,6-2 | |
| ITF Germany F10 Qual | 07/29 10:30 | 62 | Papavasiliou, Constantinos v Bilic, Feda | 0-6,2-6 | |
| ITF Germany F9 | 07/30 13:30 | 62 | Papavasiliou, Constantinos v Loccisano, Benjamin | 0-6,2-6 | |
| ITF Romania F2 Qual | 05/20 09:00 | 62 | Papavasiliou, Constantinos v 타토미르, 루카 게오르르 | 2-6,5-7 | |
| ITF Greece F4 | 03/25 09:30 | 62 | 카루아나, 리암 v Papavasiliou, Constantinos | 6-1,6-0 |