| Challenger Ochsenhausen | 2020/02/24 09:30 | Islombek Sultonov v Valerij Rakov | L | 2-3 |
| Oman Open U21 - Kobiety | 2020/02/12 11:10 | Islombek Sultonov v Yukiya Uda | L | 0-3 |
| Challenger Ochsenhausen | 2020/01/24 09:30 | Jiri Vrablik v Islombek Sultonov | L | 3-1 |
| Challenger Ochsenhausen | 2020/01/23 13:30 | Tomasz Tomaszuk v Islombek Sultonov | L | 3-0 |
| Challenger Ochsenhausen | 2020/01/23 10:50 | Dauud Cheaib v Islombek Sultonov | L | 3-0 |
| Challenger Ochsenhausen | 2020/01/23 08:50 | Jon Ander Guerricabeitia v Islombek Sultonov | L | 3-2 |
| Challenger Ochsenhausen | 2020/01/22 13:30 | Siddharta Almeida v Islombek Sultonov | L | 3-0 |
| Challenger Ochsenhausen | 2020/01/22 12:10 | Evgueni Chtchetinine v Islombek Sultonov | L | 3-0 |
| Challenger Ochsenhausen | 2020/02/24 08:50 | Paul Gauzy v Sushmit Sriram | W | 1-3 |
| Challenger Ochsenhausen | 2020/02/07 13:50 | Sushmit Sriram v Florian Bluhm | W | 3-0 |
| Challenger Ochsenhausen | 2020/02/07 12:25 | Sushmit Sriram v Sven Happek | W | 3-1 |
| Challenger Ochsenhausen | 2020/02/07 11:30 | Dean Shu v Sushmit Sriram | W | 1-3 |
| Challenger Ochsenhausen | 2020/02/06 13:30 | Sushmit Sriram v Josip Huzjak | W | 3-1 |
| Challenger Ochsenhausen | 2020/02/06 12:10 | Sven Happek v Sushmit Sriram | W | 0-3 |
| Challenger Ochsenhausen | 2020/02/06 10:10 | Clement Chobeau v Sushmit Sriram | W | 1-3 |
| Challenger Ochsenhausen | 2020/02/05 14:10 | Kyuhyun Lim v Sushmit Sriram | W | 0-3 |