Stadium: Court 5 Round: 25
| ITF Japan F4 | 2017/03/29 05:30 | Чан-Йеонг Ох v Yuichi Ito | 4-6,1-6 |
| ITF Malaysia F3 | 2018/07/17 02:00 | Yuichi Ito v Lance-Pierre Du Toit | 2-6,6-4,3-6 |
| ITF Malaysia F2 | 2018/07/10 02:00 | Yuichi Ito v Михаил Перволаракис | 2-6,2-6 |
| ITF Guam F1 | 2018/06/24 00:00 | Юта Шимицу v Yuichi Ito | 6-3,6-2 |
| ITF Guam F1 | 2018/06/23 02:10 | Томас Фанкут v Yuichi Ito | 6-7,4-6 |
| ITF Guam F1 | 2018/06/22 01:35 | Yuichi Ito v Никлас Йохансон | 7-6,6-1 |
| ITF Guam F1 | 2018/06/21 00:00 | Yuichi Ito v David Barclay | 6-2,6-2 |
| ITF Guam F1 | 2018/06/19 04:30 | Yuichi Ito v Дайсуке Сумизава | 6-3,4-6,6-3 |
| ITF Japan F6 Qual | 2018/04/09 02:30 | Yuichi Ito v Hajime Nakashima | 1-6,1-6 |
| Challenger Gwangju Qual | 2018/08/11 01:30 | Yecong He v Чан-Йеонг Ох | 7-6,6-0 |
| ITF Korea F3 | 2018/06/18 01:00 | Cheng-Yu Yu v Чан-Йеонг Ох | 6-4,6-2 |
| ITF Korea F2 | 2018/06/15 03:20 | Чан-Йеонг Ох v Юнсеонг Чунг | 6-7,6-3,4-6 |
| ITF Korea F2 | 2018/06/14 01:00 | Чан-Йеонг Ох v Mitchell Thomas McDaniels | 6-2,3-6,6-3 |
| ITF Korea F2 | 2018/06/13 06:45 | Хонг Чунг v Чан-Йеонг Ох | 2-6,2-6 |
| ITF Korea F2 | 2018/06/11 03:30 | Чан-Йеонг Ох v Sang Yeop Kim | 6-3,6-3 |
| ITF Korea F1 | 2018/06/07 01:00 | Чан-Йеонг Ох v Тае-Во Ли | 4-6,2-6 |
| ITF Korea F1 | 2018/06/05 01:00 | Чан-Йеонг Ох v Ку Кеон Канг | 6-4,6-4 |