Stadium: Court F Round: 26 Ground: Hardcourt indoor
| Challenger Yokkaichi | 2019/08/05 02:20 | Sho Shimabukuro v Yuki Mochizuki | 6-4,6-2 |
| ITF M25 Hong Kong | 2019/06/14 03:00 | Agustin Velotti v Yuki Mochizuki | 6-2,6-3 |
| ITF M25 Hong Kong | 2019/06/13 03:45 | Yuki Mochizuki v Jayden Court | 6-2,7-6 |
| ITF M25 Hong Kong | 2019/06/12 03:05 | Yuki Mochizuki v Coleman Wong | 6-1,6-4 |
| ITF M25 Hong Kong | 2019/06/08 03:00 | Yuki Mochizuki v Shuichi Sekiguchi | 3-6,6-7 |
| ITF M25 Hong Kong | 2019/06/07 02:00 | Chun Hsin Tseng v Yuki Mochizuki | 4-6,3-6 |
| ITF M25 Hong Kong | 2019/06/05 02:00 | Luca Castelnuovo v Yuki Mochizuki | 2-6,2-6 |
| ITF M15 - Karuizawa | 2019/06/02 02:00 | Ko Suzuki v Yuki Mochizuki | 4-6,6-4,2-6 |
| Challenger Kobe | 2019/11/06 02:55 | Ben Patael v Ji Sung Nam | 2-6,4-6 |
| Challenger Shenzhen 2 | 2019/10/29 03:45 | Ji Sung Nam v Zhe Li | 2-6,1-6 |
| Challenger Liuzhou | 2019/10/23 02:30 | Ji Sung Nam v Danilo Petrovic | 3-6,4-6 |
| Challenger Liuzhou | 2019/10/22 02:00 | Ji Sung Nam v Kaichi Uchida | 6-3,7-6 |
| Challenger Ningbo | 2019/10/17 04:55 | Ji Sung Nam v Bradley Klahn | 6-7,6-7 |
| Challenger Ningbo | 2019/10/16 03:35 | Andrew Harris v Ji Sung Nam | 3-6,5-7 |
| Challenger Ningbo | 2019/10/14 08:25 | Ji Sung Nam v Shuichi Sekiguchi | 6-1,6-1 |
| Challenger Kaohsiung | 2019/09/20 06:50 | Ji Sung Nam v Marc Polmans | 6-3,1-6,4-6 |