Stadium: Court 22 Round: 62 Ground: Clay
| ITF M25 Praha | 2021/10/03 13:00 | Milos Karol v Vitek Horak | 6-0,6-1 |
| ITF M25 Pardubice | 2021/09/20 10:00 | Vitek Horak v Mark Havlicek | 6-7,3-6 |
| ITF M25 Pardubice | 2021/09/19 10:00 | Radovan Michalik v Vitek Horak | 6-7,3-6 |
| ITF M25 Ricany | 2021/08/30 10:00 | Stepan Baum v Vitek Horak | 6-4,6-2 |
| ITF M25 Most | 2021/05/23 08:00 | Adam Januska v Vitek Horak | 6-3,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 08:30 | Jean Thirouin v Vitek Horak | 7-5,6-0 |
| ITF M15 Milovice | 2019/11/11 12:00 | Petr Michnev v Vitek Horak | 6-2,6-4 |
| ITF M15 Opava | 2019/10/28 13:00 | Mattia Bellucci v Vitek Horak | 6-2,6-4 |
| ITF M15 Pirot | 2021/09/21 12:00 | Nicolas Parizzia v Goran Zivotic | 4-6,6-4,9-11 |
| ITF M15 Pirot | 2021/09/20 09:30 | Stefan Ivic v Goran Zivotic | 3-6,3-6 |
| ITF M15 Zlatibor | 2021/09/13 11:00 | Shunsuke Wakita v Goran Zivotic | 6-1,6-3 |
| ITF M15 Zlatibor | 2021/09/12 11:30 | Danilo Ilic v Goran Zivotic | 0-6,2-6 |
| ITF M15 Novi Sad | 2021/08/01 12:45 | Goran Zivotic v Franco Roncadelli | 0-6,0-6 |
| ITF M15 Novi Sad | 2021/07/25 07:00 | Goran Zivotic v Alen Rogic-Hadzalic | 4-6,4-6 |
| ITF M25 Kiseljak | 2021/05/25 08:00 | Bozo Barun v Goran Zivotic | 6-0,6-0 |
| ITF M25 Kiseljak | 2021/05/24 11:00 | Tadija Radovanovic v Goran Zivotic | 3-6,6-4,3-10 |