Round: 44 Ground: Hardcourt outdoor
| ITF Turkey F5 | 2018/02/04 07:30 | Na, Jung-Woong v Iordache, Sorin Andrei | 6-1,7-6 |
| ITF Turkey F4 | 2018/02/01 07:30 | Dima, Dragos v Na, Jung-Woong | 6-2,6-3 |
| ITF Turkey F4 | 2018/01/31 09:20 | Dowson, Dan v Na, Jung-Woong | 6-7,7-5,2-6 |
| ITF Turkey F4 | 2018/01/28 07:30 | Na, Jung-Woong v Maruscak, Matej | 4-6,7-6,7-6 |
| ITF Turkey F3 | 2018/01/25 09:30 | Na, Jung-Woong v Altug Celikbilek | 2-6,3-6 |
| ITF Turkey F3 | 2018/01/24 13:00 | Elia, Alon v Na, Jung-Woong | 2-6,1-6 |
| ITF Turkey F3 | 2018/01/23 07:30 | Jung, Ki-Su v Na, Jung-Woong | 1-6,2-6 |
| ITF Turkey F3 | 2018/01/22 10:00 | Hossein Zade, Mohsen v Na, Jung-Woong | 2-6,0-6 |
| ITF Turkey F5 | 2018/02/04 07:30 | Luka Miklavcic v Radinski, Aljaz | 6-7,6-2,6-4 |
| ITF Turkey F5 | 2018/02/03 07:00 | Schranz, Bernie v Luka Miklavcic | 4-6,5-7 |
| ITF Serbia F2 Qual | 2017/08/13 07:30 | Luka Miklavcic v Luka Pavlovic | 0-6,1-6 |
| ITF Serbia F2 Qual | 2017/08/12 07:00 | Stevan Popovic v Luka Miklavcic | 2-6,7-5,2-6 |