Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Nonthaburi | 2020/02/05 02:25 | Chien Hsun Lo v Jumpei Yamasaki | 7-6,7-5 |
| Challenger Calgary | 2020/02/25 01:30 | Filip Peliwo v Jumpei Yamasaki | 6-1,7-5 |
| ITF M25 Nonthaburi | 2020/02/05 02:25 | Chien Hsun Lo v Jumpei Yamasaki | 7-6,7-5 |
| ITF M25 Nonthaburi | 2020/01/29 09:00 | Adam Pavlasek v Jumpei Yamasaki | 6-3,6-3 |
| ITF M15 Hong Kong | 2020/01/09 03:25 | Jumpei Yamasaki v Kasidit Samrej | 3-6,4-6 |
| ITF M15 Hong Kong | 2020/01/08 08:00 | Jumpei Yamasaki v Wai Yu Kai | 6-2,6-1 |
| Australian Open WC | 2019/12/04 03:35 | Jumpei Yamasaki v Tatsuma Ito | 2-6,2-6 |
| Australian Open WC | 2019/12/03 03:00 | Jumpei Yamasaki v Rhett Purcell | 4-6,7-5,6-3 |
| ITF M15 Nonthaburi | 2019/11/27 04:50 | Jumpei Yamasaki v Benjamin Pietri | 4-6,6-3,2-6 |
| ITF M15 Sharm El Sheikh | 2020/03/11 10:00 | Jaroslav Pospisil v Chien Hsun Lo | 2-6,4-6 |
| ITF M15 Sharm El Sheikh | 2020/03/07 08:00 | Chien Hsun Lo v Luca Nardi | 7-5,3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2020/03/06 08:00 | Chien Hsun Lo v Giorgio Ricca | 7-6,6-3 |
| ITF M15 Sharm El Sheikh | 2020/03/05 08:00 | Vladyslav Manafov v Chien Hsun Lo | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2020/03/04 09:40 | Chien Hsun Lo v Giordan Kunz | 6-4,6-3 |
| ITF M15 Sharm El Sheikh | 2020/02/26 12:35 | Simon Yitbarek v Chien Hsun Lo | 6-4,6-4 |
| ITF M25 Nonthaburi | 2020/02/06 02:30 | Chien Hsun Lo v Laurent Lokoli | 2-6,1-6 |
| ITF M25 Nonthaburi | 2020/02/05 02:25 | Chien Hsun Lo v Jumpei Yamasaki | 7-6,7-5 |