Stadium: Hard Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/08 09:00 | Zsombor Velcz v Ioannis Kountourakis | 7-5,6-0 |
| ITF M15 Heraklion | 2021/11/03 07:00 | Gorazd Srbljak v Zsombor Velcz | 6-4,6-4 |
| ITF M15 Doha | 2021/10/13 12:30 | Zsombor Velcz v Tom Kocevar-Desman | 2-6,1-6 |
| ITF M25 Budapest | 2021/09/28 07:30 | Zsombor Velcz v Attila Dominik Boros | 7-5,6-7,4-6 |
| ITF M15 Zlatibor | 2021/09/17 10:55 | Yan Bondarevskiy v Zsombor Velcz | 6-4,6-1 |
| ITF M15 Zlatibor | 2021/09/16 11:30 | Zsombor Velcz v Sebastian Gima | 6-3,6-4 |
| ITF M15 Zlatibor | 2021/09/15 09:30 | Zsombor Velcz v Savva Polukhin | 6-4,6-4 |
| ITF M15 Zilina | 2021/09/03 09:45 | Zsombor Velcz v Adria Soriano Barrera | 3-6,4-6 |
| ITF M15 Heraklion | 2021/11/08 08:00 | David Quayle v Preston Brown | 2-6,4-6 |
| ITF M15 Doha | 2021/10/13 18:45 | Dominik Boehler v Preston Brown | 6-4,6-3 |
| ITF M15 Doha | 2021/10/12 12:30 | Nico Hornitschek v Preston Brown | 2-6,4-6 |
| ITF M15 Doha | 2021/10/11 13:30 | Chinmaya Dev Chauhan v Preston Brown | 2-6,3-6 |
| ITF M15 Doha | 2021/10/05 12:00 | Iiro Vasa v Preston Brown | 7-5,3-6,6-3 |
| ITF M25 Pretoria | 2021/09/26 08:50 | Preston Brown v Luc Koenig | 7-5,2-6,5-10 |
| ITF M25 Johannesburg | 2021/09/21 07:00 | Menelaos Efstathiou v Preston Brown | 6-2,6-2 |
| ITF M25 Johannesburg | 2021/09/20 07:00 | Guelord Kayombo v Preston Brown | 1-6,2-6 |