Stadium: Court 20 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2021/06/23 10:15 | Stefan Palosi v Velcz, Zsombor | 6-3,7-6 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/02 15:55 | Velcz, Zsombor v Domagoj Biljesko | 7-6,2-6,5-7 |
| ITF M15 Kouvola | 2021/05/28 07:15 | Anton Matusevich v Velcz, Zsombor | 6-1,6-3 |
| ITF M15 Kouvola | 2021/05/27 12:25 | Joao Victor C Loureiro v Velcz, Zsombor | 2-6,6-4,2-6 |
| ITF M15 Kouvola | 2021/05/26 06:00 | Velcz, Zsombor v Vilardo, Francesco | 6-1,6-4 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/05/17 09:30 | Penzlin, Julien v Velcz, Zsombor | 6-4,6-1 |
| ITF M15 New Delhi | 2021/04/02 05:30 | Velcz, Zsombor v Carr, Simon | 3-6,6-2,3-6 |
| ITF M15 New Delhi | 2021/04/01 06:10 | Manish Sureshkumar v Velcz, Zsombor | 3-6,2-6 |
| ITF - M15 Antalya | 2021/06/27 06:30 | Ben Yaacoub, Hamza v Scott, Fletcher | 0-6,1-6 |
| ITF - M15 Antalya | 2021/06/24 07:00 | Scott, Fletcher v Fabian Marozsan | 3-6,1-6 |
| ITF - M15 Antalya | 2021/06/23 07:00 | Mert Alkaya v Scott, Fletcher | 4-6,7-6,2-6 |
| ITF - M15 Antalya | 2021/06/22 07:00 | Stefan Palosi v Scott, Fletcher | 6-4,7-6 |
| ITF - M15 Antalya | 2021/06/21 07:00 | Scott, Fletcher v Makk, Peter | 6-4,6-4 |
| ITF - M15 Antalya | 2021/06/20 07:00 | Scott, Fletcher v Sysoev, Nikolay | 6-1,7-5 |
| ITF - M15 Antalya | 2021/06/15 07:30 | Kolisnyk, Olexiy v Scott, Fletcher | 6-2,7-6 |
| ITF - M15 Antalya | 2021/06/14 09:40 | Scott, Fletcher v Cengiz, Baran | 6-3,1-6,10-8 |