| Australian Open Qual | 2019/06/04 00:35 | Chico Aura Dwi Wardoyo v Lee, Hyun Il | L | 2-1 |
| New Zealand Open 2019, MS | 2019/05/02 04:00 | Ka Long Angus NG v Lee, Hyun Il | L | 2-0 |
| New Zealand Open 2019, MS | 2019/05/01 00:20 | Joo Ven Soong v Lee, Hyun Il | W | 0-2 |
| Singapore Open | 2019/04/10 04:00 | Lee, Hyun Il v Zii Jia Lee | L | 0-2 |
| Open de Malaisie | 2019/04/02 05:00 | Rasmus Gemke v Lee, Hyun Il | L | 2-0 |
| Open d'Angleterre | 2018/11/07 10:20 | Anders Antonsen v Lee, Hyun Il | L | 2-1 |
| Macau Open 2019, MS | 2018/11/04 04:40 | Zhou, Z. Q. v Lee, Hyun Il | W | 0-2 |
| Giraldilla Int. XD | 2018/11/03 07:09 | Lee, Hyun Il v Thammasin, S. | W | 2-1 |
| Indonesia International Challenge 2019, MS | 2019/10/22 13:05 | Choi, Ji Hoon v Chico Aura Dwi Wardoyo | L | 0-2 |
| Korea Open 2019, MS, Qualification | 2019/09/24 01:40 | Kim, Donghun (1993) v Choi, Ji Hoon | L | 2-1 |
| Akita Masters 2019, MS | 2019/08/14 03:20 | Igarashi, Yu v Choi, Ji Hoon | L | 2-0 |
| Osaka Int. Qual | 2019/04/03 03:50 | Choi, Ji Hoon v Baba, Yusei | L | 1-2 |
| Open d'Angleterre | 2016/12/06 06:30 | Choi, Ji Hoon v Guo, Kai | L | 0-2 |