Stadium: Centre Court Round: 24 Ground: Hardcourt outdoor
| Challenger Seoul | 2019/04/29 03:55 | Cem Ilkel v Yasutaka Uchiyama | 3-6,6-1,3-6 |
| Challenger Taipei | 2019/04/09 13:50 | Cem Ilkel v Yuichi Sugita | 5-7,3-6 |
| Challenger Taipei | 2019/04/08 05:00 | Mukund Sasikumar v Cem Ilkel | 3-6,4-6 |
| Challenger St Brieuc | 2019/03/26 17:30 | Corentin Moutet v Cem Ilkel | 6-2,4-6,6-1 |
| Challenger St Brieuc | 2019/03/25 19:10 | Cem Ilkel v Andres Artunedo Martinavarr | 6-4,6-4 |
| Challenger Lille | 2019/03/18 10:35 | Rayane Roumane v Cem Ilkel | 6-3,6-2 |
| Challenger Pau | 2019/02/25 16:00 | Lucas Miedler v Cem Ilkel | 6-4,6-3 |
| Challenger Bergamo | 2019/02/20 18:00 | Cem Ilkel v Stefano Napolitano | 3-6,4-6 |
| Challenger Seoul | 2019/05/01 02:00 | Ji Sung Nam v Ramkumar Ramanathan | 3-6,6-7 |
| Challenger Seoul | 2019/04/30 03:35 | Ji Sung Nam v Duckhee Lee | 7-5,6-1 |
| Challenger Seoul | 2019/04/29 02:00 | Ji Sung Nam v Ji Hoon Son | 6-3,6-2 |
| ITF M25 Matsuyama | 2019/04/12 01:00 | Ji Sung Nam v Gage Brymer | 3-6,3-6 |
| ITF M25 Matsuyama | 2019/04/09 04:55 | Ji Sung Nam v Mark Whitehouse | 7-6,6-2 |
| ITF M15 Kashiwa | 2019/04/03 06:15 | Jumpei Yamasaki v Ji Sung Nam | 6-3,2-6,7-6 |
| ITF M15 Nishi-Tokyo | 2019/03/15 02:20 | Hiroyasu Ehara v Ji Sung Nam | 6-3,3-6,7-6 |
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Min-Kyu Song v Ji Sung Nam | 4-6,3-6 |