Stadium: Court 4 Round: 46
| ITF Spain F4 | 2018/02/08 11:00 | Ivan Gakhov v Yunseong Chung | 6-4,6-4 |
| ITF Spain F3 | 2018/01/30 13:40 | Daniel Gimeno-Traver v Yunseong Chung | 6-4,6-1 |
| ITF Spain F2 | 2018/01/27 10:00 | Yunseong Chung v Daniel Munoz-De La Nava | 3-6,4-6 |
| ITF Spain F2 | 2018/01/26 13:00 | Joao Monteiro v Yunseong Chung | 7-6,5-7,3-6 |
| ITF Spain F2 | 2018/01/25 09:00 | Yunseong Chung v Evgeny Tyurnev | 6-4,2-6,6-3 |
| ITF Spain F2 | 2018/01/23 10:35 | Yunseong Chung v Nico Mertens | 6-4,6-3 |
| ITF Spain F1 | 2018/01/20 11:50 | Daniel Munoz-De La Nava v Yunseong Chung | 6-4,6-3 |
| ITF Spain F1 | 2018/01/19 10:00 | Germain Gigounon v Yunseong Chung | 5-7,3-6 |
| Challenger Bangkok Qual | 2017/12/30 06:50 | Mikhail Elgin v Congsup Congcar | 6-2,7-6 |
| Challenger Bratislava Qual | 2017/11/04 14:30 | Mikhail Elgin v Dzmitry Zhyrmont | 6-1,4-6,6-7 |
| ATP St Petersburg Qual | 2017/09/18 08:00 | John-Patrick Smith v Mikhail Elgin | 7-6,6-2 |
| ATP St Petersburg Qual | 2017/09/17 09:25 | Mikhail Elgin v Petr Michnev | 7-6,6-4 |
| ITF Russia F7 | 2017/08/19 09:45 | Anton Zaitcev v Mikhail Elgin | 2-6,6-4,4-6 |
| ITF Russia F7 | 2017/08/18 09:05 | Mikhail Elgin v Artem Dubrivnyy | 6-2,7-6 |
| ITF Russia F7 | 2017/08/17 09:50 | Ilya Vasilyev v Mikhail Elgin | 3-6,2-6 |
| ITF Russia F7 | 2017/08/15 10:20 | Vladimir Korolev v Mikhail Elgin | 6-4,1-6,2-6 |