Stadium: Centre Court Round: 25 Ground: Clay
| Nonthaburi, Singles M-ITF-THA-01A | 2020/01/31 05:00 | Matija Pecotic v Sekiguchi, Shuichi | 6-2,7-5 |
| Nonthaburi, Singles M-ITF-THA-01A | 2020/01/30 07:05 | Na, Jung-Woong v Sekiguchi, Shuichi | 1-6,4-6 |
| Nonthaburi, Singles M-ITF-THA-01A | 2020/01/29 07:25 | Kasidit Samrej v Sekiguchi, Shuichi | 3-6,2-6 |
| 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 |
| ITF M15 Curtea de Arges | 2020/09/17 07:00 | Dima, Dragos v Vitaliy Sachko | 4-6,1-6 |
| ITF M15 Curtea de Arges | 2020/09/15 11:45 | Dima, Dragos v Dan Alexandru Tomescu | 6-0,6-2 |
| ITF - M15 Bucarest | 2020/09/11 09:00 | Timofey Skatov v Dima, Dragos | 6-2,6-2 |
| ITF - M15 Bucarest | 2020/09/10 07:00 | Dima, Dragos v Stefan Palosi | 2-6,6-4,7-5 |
| ITF - M15 Bucarest | 2020/09/09 07:00 | Dima, Dragos v Carlos Lopez Montagud | 6-3,6-2 |
| ITF - M15 Bucarest | 2020/09/08 07:00 | Dima, Dragos v Fetisleam, Edris | 6-1,6-2 |
| ITF - M15 Antalya | 2020/03/11 12:25 | Toledo Bague, Pol v Dima, Dragos | 6-4,7-6 |
| ITF - M15 Antalya | 2020/03/03 07:00 | Dima, Dragos v Davydov, Ivan | 7-5,6-1 |