Round: 54 Ground: Hardcourt outdoor
| ITF Japan F2 | 2015/03/16 01:00 | Yutaro Matsuzaki v Hiromasa Oku | 6-2,3-6,7-6 |
| ITF Japan F3 | 2014/03/24 01:00 | Hiromasa Oku v Yutaro Matsuzaki | 2-6,4-6 |
| ITF Japan F1 | 2016/03/10 01:00 | Hiromasa Oku v Шинтаро Имай | 6-3,2-6,1-6 |
| ITF Japan F8 | 2015/06/24 01:10 | Hiromasa Oku v Шо Катаяма | 6-7,0-6 |
| ITF Japan F7 | 2015/06/19 03:00 | Hiromasa Oku v Yusuke Watanuki | 2-6,3-6 |
| ITF Japan F7 | 2015/06/18 02:05 | Hiromasa Oku v Макото Очи | 6-4,6-3 |
| ITF Japan F7 | 2015/06/16 00:30 | Hiromasa Oku v Ку Кеон Канг | 6-2,6-1 |
| ITF Japan F6 | 2015/06/10 01:30 | Keisuke Watanuki v Hiromasa Oku | 6-2,6-3 |
| ITF Japan F5 | 2015/06/06 03:00 | Такаши Саито v Hiromasa Oku | 6-3,6-1 |
| ITF Japan F5 | 2015/06/05 02:35 | Hiromasa Oku v Макото Очи | 2-6,6-2,6-4 |
| ITF Japan F8 | 2015/06/24 04:20 | Ясутака Учияма v Yutaro Matsuzaki | 6-2,6-4 |
| ITF Japan F4 | 2015/03/30 01:00 | Ротаро Мацумура v Yutaro Matsuzaki | 6-4,6-3 |
| ITF Japan F4 | 2015/03/28 00:30 | Yutaro Matsuzaki v Казуки Нишиуаки | 6-7,6-4,6-4 |
| ITF Japan F3 | 2015/03/22 01:00 | Такаши Саито v Yutaro Matsuzaki | 6-0,6-3 |
| ITF Japan F2 | 2015/03/18 02:40 | Yutaro Matsuzaki v Хироясу Ехара | 4-6,6-4,3-6 |
| ITF Japan F2 | 2015/03/16 01:00 | Yutaro Matsuzaki v Hiromasa Oku | 6-2,3-6,7-6 |
| ITF Japan F1 | 2015/03/07 03:00 | Jarryd Chaplin v Yutaro Matsuzaki | 6-3,6-2 |
| ITF Japan F3 | 2014/03/26 02:25 | Yutaro Matsuzaki v Yuichi Ito | 0-6,2-6 |