| Challenger Bangkok 4 | 2016/08/30 06:45 | Go Soeda v Cem Ilkel | 6-2,6-1 |
| Challenger Taipei | 2019/04/13 06:30 | Sergiy Stakhovsky v Go Soeda | 7-6,7-6 |
| Challenger Taipei | 2019/04/12 05:45 | Jason Jung v Go Soeda | 6-7,1-6 |
| Challenger Taipei | 2019/04/11 10:15 | Andrew Harris v Go Soeda | 2-6,3-6 |
| Challenger Taipei | 2019/04/09 06:25 | Go Soeda v Evgeny Donskoy | 4-6,6-4,7-6 |
| Challenger Taipei | 2019/04/08 07:20 | Go Soeda v Yasutaka Uchiyama | 6-7,6-4,6-2 |
| Challenger Zhangjiagang | 2019/03/20 04:20 | Go Soeda v Max Purcell | 6-4,6-7,1-6 |
| Challenger Shenzhen | 2019/03/12 06:00 | Go Soeda v Blaz Rola | 4-6,3-6 |
| Challenger Shenzhen | 2019/03/11 06:15 | Raul Brancaccio v Go Soeda | 6-7,3-6 |
| 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 Bergamo | 2019/02/19 09:00 | Cem Ilkel v Javier Barranco Cosano | 3-6,6-2,7-5 |