Round: 44 Ground: Hardcourt outdoor
| ITF Turkey F38 | 2018/11/24 09:30 | Constantinos Papavasiliou v Ivan Zaytsev | 6-1,5-7,6-7 |
| ITF Greece F8 | 2018/11/13 09:25 | Stefan Seifert v Constantinos Papavasiliou | 6-0,6-1 |
| ITF Ukraine F4 | 2018/08/26 07:00 | Constantinos Papavasiliou v Oleksandr Varichenko | 0-6,3-6 |
| ITF Germany F11 | 2018/08/05 08:00 | Marvin Rehberg v Constantinos Papavasiliou | 6-1,6-2 |
| ITF Germany F10 Qual | 2018/07/29 10:30 | Constantinos Papavasiliou v Feda Bilic | 0-6,2-6 |
| ITF Germany F9 | 2017/07/30 13:30 | Constantinos Papavasiliou v Benjamin Loccisano | 0-6,2-6 |
| ITF Romania F2 Qual | 2017/05/20 09:00 | Constantinos Papavasiliou v Luca George Tatomir | 2-6,5-7 |
| ITF Greece F4 | 2017/03/25 09:30 | Liam Caruana v Constantinos Papavasiliou | 6-1,6-0 |
| ITF USA F26 Qual | 2018/09/22 16:30 | Francis Pare v Jack Vance | 6-3,6-3 |
| ITF USA F26 Qual | 2018/09/21 21:30 | Jack Vance v Tomas Krcma | 6-1,6-1 |
| ITF USA F25 | 2018/09/15 20:30 | Emilio Nava v Jack Vance | 6-4,6-2 |
| ITF USA F25 | 2018/09/14 19:00 | Jared Thompkins v Jack Vance | 6-2,5-7,0-6 |
| ITF USA F24 | 2018/09/08 17:30 | Hendrik Jebens v Jack Vance | 6-3,6-3 |
| ITF USA F24 | 2018/09/07 21:00 | Adrian Chamdani v Jack Vance | 6-2,6-7,1-6 |
| ITF USA F12 | 2018/04/21 13:00 | Jack Vance v Jesse Flores | 2-6,2-6 |
| ITF USA F5 | 2018/01/19 18:30 | Brant Vaughan Switzler v Jack Vance | 6-3,6-4 |