Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF - M25 Rodez | 2020/10/14 12:20 | Maxime Hamou v Shuichi Sekiguchi | 4-6,7-6,7-6 |
| ITF - M25 Porto | 2020/10/03 09:00 | Shuichi Sekiguchi v Gastao Elias | 2-6,3-6 |
| ITF - M25 Porto | 2020/10/01 13:00 | Shuichi Sekiguchi v Patrik Niklas-Salminen | 3-6,6-2,6-3 |
| ITF - M25 Porto | 2020/09/30 14:15 | Shuichi Sekiguchi v Sadio Doumbia | 6-4,7-6 |
| Challenger - Sibiu | 2020/09/23 11:50 | Shuichi Sekiguchi v Felipe Meligeni Rodrigues Alves | 2-6,3-6 |
| Challenger - Sibiu | 2020/09/22 08:00 | Shuichi Sekiguchi v Dragos Dima | 7-5,7-6 |
| ITF - M25 Nonthaburi | 2020/01/31 05:00 | Matija Pecotic v Shuichi Sekiguchi | 6-2,7-5 |
| ITF - M25 Nonthaburi | 2020/01/30 07:05 | Jung-Woong Na v Shuichi Sekiguchi | 1-6,4-6 |
| Challenger - Istanbul | 2020/10/17 08:45 | Ivan Nedelko v Viktor Galovic | 4-6,2-6 |
| Challenger - Lisabona | 2020/10/10 09:00 | Orlando Luz v Viktor Galovic | 6-4,4-6,6-4 |
| Challenger - Parma | 2020/10/03 12:30 | Viktor Galovic v Hugo Grenier | 2-6,4-6 |
| Challenger - Biella | 2020/09/27 09:00 | Alexandre Muller v Viktor Galovic | 6-3,7-6 |
| Challenger - Biella | 2020/09/26 09:00 | Riccardo Bonadio v Viktor Galovic | 6-3,2-6,1-6 |
| Challenger Forli | 2020/09/21 08:00 | Andrea Pellegrino v Viktor Galovic | 6-4,6-4 |
| ATP - Kitzbuhel | 2020/09/07 15:30 | Laslo Djere v Viktor Galovic | 6-3,7-5 |
| Challenger - Cordenons | 2020/08/30 10:30 | Andrea Pellegrino v Viktor Galovic | 7-6,6-1 |