| ITF - M25 Kiseljak | 05/30 12:25 | 26 | Sergey Fomin v Matthew Dellavedova | 3-6,6-3,3-6 | |
| ITF - M25 Kiseljak | 05/28 10:30 | 25 | Sergey Fomin v Antonio Pelivan | 6-0,6-0 | |
| Challenger - Skopje | 05/21 08:30 | 25 | Joel Schwaerzler v Sergey Fomin | Retired | |
| Challenger - Skopje | 05/20 08:30 | 19 | Sergey Fomin v Gerald Melzer | 6-3,6-4 | |
| Challenger - Skopje | 05/19 08:30 | 14 | Juan C P Angelo v Sergey Fomin | 2-6,6-2,2-6 | |
| ITF - M15 Shymkent | 04/24 04:00 | 25 | Sergey Fomin v Aryan Shah | 5-7,0-6 | |
| ITF - M15 Shymkent | 04/21 07:00 | 29 | Bekhan Atlangeriev v Sergey Fomin | 6-7,2-6 | |
| ITF - M15 Shymkent | 04/20 07:00 | 28 | Sergey Fomin v Evgenii Tiurnev | 3-6,7-6,6-4 | |
| ITF - M15 Shymkent | 04/19 06:00 | 27 | Sergey Fomin v Savva Polukhin | 7-6,3-6,7-6 | |
| ITF - M15 Shymkent | 04/18 07:00 | 26 | Sergey Fomin v Maxim Zhukov | 5-7,6-1,6-2 | |
| ITF - M15 Shymkent | 04/17 11:35 | 25 | Sergey Fomin v Niklas Schell | 7-6,6-3 | |
| ITF - M15 Antalya | 04/04 07:00 | 26 | Sergey Fomin v Maxim Zhukov | 4-6,4-6 |
Sergey Vladimirovich Fomin (Сергей Владимирович Фомин) (born 16 February 1958 in Saint Petersburg, Russia) is a Russian American mathematician who has made important contributions in combinatorics and its relations with algebra, geometry, and representation theory. Together with Andrei Zelevinsky, he introduced cluster algebras.