stadio: Court 5 Round: 28 Ground: Grass
| Challenger Yokohama - Qual. | 2017/02/27 01:00 | Brydan Klein v Shuichi Sekiguchi | 7-5,6-2 |
| ITF M25 Albury | 2019/03/01 02:10 | Brydan Klein v Harry Bourchier | 7-6,6-3 |
| ITF M25 Albury | 2019/02/28 01:45 | Brydan Klein v Ryota Tanuma | 6-3,6-2 |
| ITF M25 Albury | 2019/02/26 02:45 | Brydan Klein v Matthew Dellavedova | 6-3,6-0 |
| Challenger Chennai | 2019/02/08 05:30 | Brydan Klein v Mukund Sasikumar | 2-6,6-3,6-7 |
| Challenger Chennai | 2019/02/07 06:30 | Soonwoo Kwon v Brydan Klein | 4-6,6-4,3-6 |
| Challenger Chennai | 2019/02/06 08:55 | Brydan Klein v Maverick Banes | 6-4,6-1 |
| Challenger Chennai | 2019/02/05 04:30 | Manish Sureshkumar v Brydan Klein | 2-6,3-6 |
| Challenger Canberra | 2019/01/09 02:20 | Brydan Klein v Bradley Mousley | 4-6,7-6,5-7 |
| 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 |
| Challenger Da Nang | 2019/01/06 03:00 | Viktor Durasovic v Shuichi Sekiguchi | 6-3,6-2 |
| ITF M25 Hong Kong | 2019/01/02 02:55 | Shuichi Sekiguchi v Carlos Boluda-Purkiss | 5-7,4-6 |
| Challenger Kobe | 2018/11/13 07:50 | Jordi Samper-Montana v Shuichi Sekiguchi | 6-4,6-1 |
| ITF Vietnam F4 | 2018/10/25 03:00 | Shuichi Sekiguchi v Filip Bergevi | 3-6,4-6 |
| ITF Vietnam F4 | 2018/10/23 05:20 | Shuichi Sekiguchi v Billy Harris | 7-6,4-6,7-6 |