Stadium: Court 4 Round: 25 Ground: Clay
| Challenger Campinas | 2020/12/02 18:15 | Roberto Carballes Baena v Vit Kopriva | 4-6,6-3,7-5 |
| Challenger Lima | 2020/11/27 15:00 | Tomas Barrios Vera v Vit Kopriva | 6-7,6-3,6-2 |
| Challenger Lima | 2020/11/26 16:50 | Vit Kopriva v Jesper De Jong | 6-0,3-6,6-1 |
| Challenger Lima | 2020/11/23 16:00 | Vit Kopriva v Bastian Malla | 6-2,6-3 |
| Challenger Guayaquil | 2020/11/19 16:30 | Pedro Sousa v Vit Kopriva | 1-6,6-3,6-4 |
| Challenger Guayaquil | 2020/11/16 19:00 | Vit Kopriva v Pedja Krstin | 6-1,6-4 |
| Challenger Marbella | 2020/10/30 14:50 | Vit Kopriva v Jaume Munar | 1-6,5-7 |
| Challenger Marbella | 2020/10/29 10:00 | Vit Kopriva v Federico Gaio | 3-6,7-6,6-4 |
| Challenger Quimper Qual | 2021/01/31 09:00 | Illya Marchenko v Tristan Lamasine | 0-6,6-4,6-7 |
| Challenger Quimper | 2021/01/29 13:00 | Benjamin Bonzi v Illya Marchenko | 6-7,6-4,6-4 |
| Challenger Quimper | 2021/01/27 17:15 | Illya Marchenko v Gregoire Barrere | 6-3,6-2 |
| Challenger Quimper | 2021/01/26 13:20 | Arthur Cazaux v Illya Marchenko | 4-6,5-7 |
| Challenger Quimper | 2021/01/25 11:00 | Illya Marchenko v Tung-Lin Wu | 6-3,6-7,6-1 |
| Challenger Quimper | 2021/01/24 14:05 | Illya Marchenko v Sean Cuenin | 6-4,6-2 |
| Australian Open | 2021/01/10 14:55 | Illya Marchenko v Kimmer Coppejans | 6-7,3-6 |
| Challenger Ortisei | 2020/11/20 10:00 | Alexandre Muller v Illya Marchenko | 6-7,7-6,7-5 |