Stadium: Court B Round: 25 Ground: Hardcourt outdoor
| Bangkok-2, Thailand | 2020/01/20 03:00 | Kasidit Samrej v Kaichi Uchida | 4-6,3-6 |
| Bangkok, Thaïlande | 2020/01/12 07:30 | Kasidit Samrej v Chun Hsin Tseng | 1-6,2-6 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/10 02:00 | Kasidit Samrej v Yuta Shimizu | 4-6,4-6 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/09 03:25 | Jumpei Yamasaki v Kasidit Samrej | 3-6,4-6 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/08 04:30 | Eric Vanshelboim v Kasidit Samrej | 6-7,2-6 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/07 03:05 | Kasidit Samrej v Gao, Qun | 6-3,7-5 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/06 02:00 | Kasidit Samrej v Lin, Liang Yu Richard | 6-2,6-2 |
| ITF - M15 Doha | 2019/12/19 10:25 | Karl Friberg v Kasidit Samrej | 4-6,7-6,6-0 |
| Bangkok-2, Thailand | 2020/01/22 05:25 | Polansky, Peter v Sekiguchi, Shuichi | 6-3,7-5 |
| ATP - Auckland | 2020/01/10 22:00 | Sekiguchi, Shuichi v Tatsuma Ito | 3-6,6-4,4-6 |
| Te Anau, Simples M-ITF-NZL-01A | 2020/01/04 00:30 | Luke Saville v Sekiguchi, Shuichi | 6-3,6-3 |
| Te Anau, Simples M-ITF-NZL-01A | 2020/01/02 21:00 | Stoupe, George v Sekiguchi, Shuichi | 3-6,1-6 |
| Te Anau, Simples M-ITF-NZL-01A | 2020/01/01 22:00 | Calum Puttergill v Sekiguchi, Shuichi | 6-2,2-6,2-6 |
| Te Anau, Simples M-ITF-NZL-01A | 2019/12/31 05:15 | Sam Ryan Ziegann v Sekiguchi, Shuichi | 2-6,3-6 |
| Challenger - Pune | 2019/11/14 06:30 | Sekiguchi, Shuichi v Ortega-Olmedo, Roberto | 2-6,4-6 |
| Challenger - Pune | 2019/11/12 07:45 | Sekiguchi, Shuichi v Blokhin, Roman | 6-3,6-0 |