轮: 62 Ground: Hardcourt outdoor
| ITF日本F3 | 2018/03/19 01:00 | 关口周一 v Jumpei Yamasaki | 6-7,7-6,6-2 |
| ITF日本F2 | 2018/03/13 03:15 | 丹尼尔•阮 v Jumpei Yamasaki | 6-1,2-6,6-1 |
| ITF日本F2 | 2018/03/12 00:30 | Jumpei Yamasaki v Naru Shirafuji | 6-0,6-0 |
| ITF日本F2 | 2018/03/11 00:30 | Jumpei Yamasaki v Takashi Yasugami | 6-0,6-3 |
| ITF日本F1 | 2018/03/08 07:15 | Jumpei Yamasaki v Yuki Mochizuki | 1-6,3-6 |
| ITF日本F1 | 2018/03/06 02:00 | 内田凯驰 v Jumpei Yamasaki | 6-1,6-7,3-6 |
| 横滨挑战赛 | 2018/02/27 04:45 | Jumpei Yamasaki v 斯蒂凡·罗伯特 | 6-3,1-6,3-6 |
| 横滨挑战赛资格赛 | 2018/02/26 01:00 | Jumpei Yamasaki v Masamichi Imamura | 4-6,7-6,6-4 |
| ITF日本F3 | 2018/03/17 04:00 | Yuga Tashiro v 竹岛骏朗 | 6-7,6-1,2-6 |
| ITF日本F3 | 2018/03/17 00:30 | Yuga Tashiro v 利奥塔 Kishi | 6-7,6-3,6-0 |
| ITF日本F2 | 2018/03/10 00:30 | Yuga Tashiro v Takashi Yasugami | 6-7,6-2,4-6 |
| ITF日本F1 | 2018/03/04 01:00 | Naoya Maesaki v Yuga Tashiro | 6-3,6-4 |
| ITF埃及F6 | 2018/02/17 08:00 | Yuga Tashiro v 斯蒂芬•格里特森 | 6-7,4-6 |
| ITF埃及F5 | 2018/02/10 12:00 | 乔汉•尼克利斯 v Yuga Tashiro | 6-1,3-6,7-5 |
| 丰田挑战赛 | 2017/11/14 05:40 | Yuga Tashiro v 约翰∙米尔曼 | 3-6,2-6 |
| 神户挑战赛资格赛 | 2017/11/04 04:50 | 直树中川 v Yuga Tashiro | 6-3,6-1 |