Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/10/17 07:00 | Andrej Duric v Vitek Horak | 0-6,1-6 |
| ITF M15 Antalya | 2021/10/11 09:10 | Lambert Ruland v Vitek Horak | 4-6,6-2,10-8 |
| ITF M15 Antalya | 2021/10/10 07:00 | Vitek Horak v Goran Zivotic | 6-4,6-4 |
| ITF M25 Prague | 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 M15 Antalya | 2021/10/17 07:00 | Aziz Dadabaev v Gian Marco Ortenzi | 2-6,3-6 |
| ITF M15 Antalya | 2021/10/12 11:05 | Gian Marco Ortenzi v Facundo Yunis | 5-7,6-7 |
| ITF M15 Antalya | 2021/10/11 09:00 | Gian Marco Ortenzi v Simon Habsuda | 6-4,6-0 |
| ITF M15 Cairo | 2021/09/30 10:20 | Simone Roncalli v Gian Marco Ortenzi | 2-6,6-3,6-0 |
| ITF M15 Cairo | 2021/09/29 14:50 | Gian Marco Ortenzi v Elbert Barr | 6-0,6-2 |
| ITF M15 Cairo | 2021/09/28 10:20 | Gian Marco Ortenzi v Daiki Yoshimura | 6-2,4-6,10-4 |
| ITF M15 Cairo | 2021/09/27 12:00 | Gian Marco Ortenzi v Jordan Chiu | 7-5,6-2 |
| ITF M15 Cairo | 2021/09/21 08:00 | Valerio Aboian v Gian Marco Ortenzi | 7-6,6-3 |