Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| 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 M25 Albury | 2019/02/26 01:05 | Shuichi Sekiguchi v Alexis Canter | 6-2,6-1 |
| ITF M15 Nishi-Tama | 2019/03/08 02:40 | Seong Chan Hong v Keisuke Saitoh | 6-3,6-0 |
| ITF M15 Nishi-Tama | 2019/03/06 01:00 | Soichiro Moritani v Keisuke Saitoh | 2-6,0-6 |