Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF Japan F6 | 2017/05/29 05:55 | Yuki Mochizuki v Shuichi Sekiguchi | 3-6,4-6 |
| ITF M15 Nishi-Tokyo | 2019/03/13 01:00 | Shuichi Sekiguchi v Keisuke Saitoh | 6-3,6-2 |
| ITF M25 Mildura | 2019/03/09 01:00 | Shuichi Sekiguchi v Brydan Klein | 7-6,1-6,1-6 |
| ITF M25 Mildura | 2019/03/08 02:40 | Yuta Shimizu v Shuichi Sekiguchi | 3-6,3-6 |
| ITF M25 Mildura | 2019/03/07 02:00 | Issei Okamura v Shuichi Sekiguchi | 3-6,6-3,2-6 |
| ITF M25 Mildura | 2019/03/05 01:30 | Alexis Canter v Shuichi Sekiguchi | 6-7,1-6 |
| ITF M25 Albury | 2019/03/02 00:00 | Brydan Klein v Shuichi Sekiguchi | 6-3,6-2 |
| ITF M25 Albury | 2019/02/28 23:30 | Shuichi Sekiguchi v Thomas Fancutt | 5-7,6-1,6-4 |
| ITF M25 Albury | 2019/02/28 01:20 | Shuichi Sekiguchi v Vincent Stouff | 4-6,6-1,6-2 |
| ITF M15 Nishi-Tokyo | 2019/03/12 03:20 | Yuki Mochizuki v Hong Kit Wong | 6-2,6-4 |
| ITF M15 Nishi-Tama | 2019/03/08 02:25 | Hiroyasu Ehara v Yuki Mochizuki | 6-3,4-6,7-5 |
| ITF M15 Nishi-Tama | 2019/03/06 03:20 | Yuki Mochizuki v Daisuke Sumizawa | 6-1,7-6 |
| ITF M25 Hong Kong | 2019/01/04 02:00 | Julian Lenz v Yuki Mochizuki | 6-7,6-1,6-2 |
| ITF M25 Hong Kong | 2019/01/03 02:00 | Yuki Mochizuki v Carlos Boluda-Purkiss | 6-3,7-5 |
| ITF M25 Hong Kong | 2019/01/02 04:35 | Hong Kit Wong v Yuki Mochizuki | 3-6,4-6 |
| ITF M25 Hong Kong | 2019/01/01 02:00 | Yuki Mochizuki v Tsung-Hao Huang | 4-6,6-0,12-10 |
| ITF Hong Kong F3 | 2018/12/25 09:35 | Issei Okamura v Yuki Mochizuki | 7-6,7-6 |