Stadium: Court 9 Round: 29 Ground: Clay
| ITF M15 Karuizawa | 2019/06/01 02:00 | Ko Suzuki v Soichiro Moritani | 6-4,6-2 |
| ITF M15 Karuizawa | 2019/05/31 01:00 | Ko Suzuki v Goran Markovic | 6-1,6-4 |
| ITF M15 Karuizawa | 2019/05/30 06:00 | Jordi Samper-Montana v Ko Suzuki | 4-6,6-0,6-7 |
| ITF M15 Karuizawa | 2019/05/28 05:35 | Yuta Kikuchi v Ko Suzuki | 2-6,6-3,4-6 |
| ITF Japan F7 Qual | 2018/06/03 03:10 | Tomohiro Masabayashi v Ko Suzuki | 5-7,7-6,6-4 |
| ITF Japan F7 Qual | 2018/06/02 03:00 | Ko Suzuki v Yuki Matsuo | 5-7,6-0,6-4 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Kaito Uesugi v Ko Suzuki | 7-6,6-4 |
| ITF Japan F5 | 2018/04/01 00:30 | Ko Suzuki v Kazuma Kawachi | 4-6,4-6 |
| ITF M15 Karuizawa | 2019/06/01 02:00 | Sora Fukuda v Yuki Mochizuki | 7-5,3-6,4-6 |
| ITF M15 Karuizawa | 2019/05/31 02:30 | Haru Inoue v Yuki Mochizuki | 2-6,3-6 |
| ITF M15 Karuizawa | 2019/05/30 04:15 | Shunrou Takeshima v Yuki Mochizuki | 1-6,6-7 |
| ITF M15 Karuizawa | 2019/05/29 04:00 | Yuta Kawahashi v Yuki Mochizuki | 1-6,2-6 |
| ITF M25 Wuhan | 2019/05/08 05:15 | Yuki Mochizuki v Tyler Lu | 2-6,6-3,6-7 |
| ITF M15 Wuhan | 2019/05/03 02:00 | Yuki Mochizuki v Fajing Sun | 7-6,6-7,2-6 |
| ITF M15 Wuhan | 2019/05/02 03:35 | Yuki Mochizuki v Hong Kit Wong | 6-3,6-2 |
| ITF M15 Wuhan | 2019/05/01 05:20 | Yuki Mochizuki v Rhett Purcell | 7-6,6-3 |