Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| Challenger Samarkand Qual | 2018/05/15 05:30 | Sergey Fomin v Khumoyun Sultanov | 6-2,6-2 |
| ITF Kazakhstan F1 | 2018/02/14 07:35 | Sergey Fomin v Khumoyun Sultanov | 6-4,4-6,6-3 |
| ITF Kazakhstan F5 | 2016/09/19 07:35 | Sergey Fomin v Khumoyun Sultanov | 0-6,4-6 |
| Aktobe, Singles Qualifying M-ITF-KAZ-02A | 2019/02/13 07:05 | Kravchuk, Konstantin v Sergey Fomin | 4-6,7-6,7-6 |
| Kazan, Simples M-ITF-RUS-02A | 2019/01/24 08:55 | Fayziev, Sanjar v Sergey Fomin | 6-2,7-6 |
| Kazan, Simples M-ITF-RUS-02A | 2019/01/23 11:20 | Alibek Kachmazov v Sergey Fomin | 3-6,6-2,4-6 |
| Challenger Tashkent | 2018/10/07 05:00 | Sergey Fomin v Tristan Lamasine | 3-6,4-6 |
| Challenger Tashkent | 2018/10/06 05:00 | Sergey Fomin v Ergashev, Sardor | 6-2,6-0 |
| ITF Kazakhstan F8 | 2018/09/25 03:30 | Andrey Chepelev v Sergey Fomin | 6-4,6-0 |
| ITF Kazakhstan F7 | 2018/09/19 04:00 | Bogdan Bobrov v Sergey Fomin | 6-3,6-2 |
| ITF Kazakhstan F7 | 2018/09/18 03:30 | Sergey Fomin v Bondarevskiy, Yan | 6-2,6-1 |
| Aktobe, Singles Qualifying M-ITF-KAZ-02A | 2019/02/15 07:00 | Niels Lootsma v Khumoyun Sultanov | 7-6,4-6,7-5 |
| Aktobe, Singles Qualifying M-ITF-KAZ-02A | 2019/02/14 07:50 | Konecny, Michal v Khumoyun Sultanov | 4-6,4-6 |
| Aktobe, Singles Qualifying M-ITF-KAZ-02A | 2019/02/13 11:55 | Anton Chekhov v Khumoyun Sultanov | 2-6,2-6 |
| Kazan, Simples M-ITF-RUS-02A | 2019/01/24 07:00 | Khumoyun Sultanov v Alexander Vasilenko | 4-6,0-6 |
| Kazan, Simples M-ITF-RUS-02A | 2019/01/23 12:15 | Khumoyun Sultanov v Boris Butulija | 7-6,6-2 |
| Challenger - Pune | 2018/11/18 05:30 | Khumoyun Sultanov v Kalenichenko, Danylo | 7-5,6-7,4-6 |
| Challenger - Pune | 2018/11/17 04:30 | Anand, Kunal v Khumoyun Sultanov | 3-6,0-6 |
| Challenger Bangalore | 2018/11/12 08:25 | Khumoyun Sultanov v Sebastian Fanselow | 7-5,4-6,1-6 |