ITF Corea del Sud F5 | 2018/08/18 02:00 | Jumpei Yamasaki v Dukyoung Kim | 6-4,6-4 |
Challenger Gwangju - Qual. | 2018/08/12 01:30 | Yecong He v Jumpei Yamasaki | 6-2,6-4 |
Challenger Gwangju - Qual. | 2018/08/11 01:30 | Fajing Sun v Jumpei Yamasaki | 1-6,6-2,2-6 |
Challenger Jinan - Qual. | 2018/08/04 02:00 | Matej Sabanov v Jumpei Yamasaki | 6-4,6-4 |
Challenger Chengdu - Qual. | 2018/07/28 02:00 | Miliaan Niesten v Jumpei Yamasaki | 6-2,6-2 |
Challenger Granby - Qual. | 2018/07/21 16:25 | Taha Baadi v Jumpei Yamasaki | 7-6,6-4 |
Challenger Gatineau - Qual. | 2018/07/14 21:55 | Jacob Grills v Jumpei Yamasaki | 6-3,6-1 |
Challenger Winnipeg - Qual. | 2018/07/08 18:05 | Sem Verbeek v Jumpei Yamasaki | 7-6,7-6 |
ITF Corea F4 | 2018/08/12 02:00 | Jungwon Park v Hyeong Don Kim | 4-6,4-6 |