Stadium: Court C Round: 25 Ground: Hardcourt outdoor
| Challenger Yokkaichi | 2019/08/06 04:50 | Tsung-Hua Yang v Yuta Shimizu | 1-6,6-1,6-4 |
| Challenger Yokkaichi | 2019/08/05 01:00 | Yuta Shimizu v Min-Kyu Song | 6-3,6-3 |
| ITF M25 Nonthaburi | 2019/08/02 03:00 | Yu Hsiou Hsu v Yuta Shimizu | 7-6,6-2 |
| ITF M25 Nonthaburi | 2019/08/01 02:30 | Rhett Purcell v Yuta Shimizu | 1-6,6-7 |
| ITF M25 Nonthaburi | 2019/07/31 04:55 | Palaphoom Kovapitukted v Yuta Shimizu | 6-7,1-6 |
| ITF M25 Nonthaburi | 2019/07/28 03:00 | Yuta Shimizu v Vladyslav Orlov | 6-4,6-0 |
| ITF M25 Nonthaburi | 2019/07/27 04:50 | Harry Bourchier v Yuta Shimizu | 6-4,4-6,1-6 |
| ITF M25 Nonthaburi | 2019/07/26 03:00 | Blake Ellis v Yuta Shimizu | 4-6,6-7 |
| ITF M15 Hua Hin | 2019/08/21 03:00 | Ko Suzuki v Soichiro Moritani | 4-6,4-6 |
| ITF M15 Akishima | 2019/06/12 02:30 | Rio Noguchi v Ko Suzuki | 6-3,1-6,6-3 |
| ITF M15 Akishima | 2019/06/11 03:00 | Ko Suzuki v Kazuki Shimizu | 7-5,6-3 |
| ITF M15 Akishima | 2019/06/11 00:00 | Masayoshi Ono v Ko Suzuki | 2-6,3-6 |
| ITF M15 Guam | 2019/06/08 00:00 | Ko Suzuki v Hiroyasu Ehara | 4-6,1-6 |
| ITF M15 Guam | 2019/06/07 00:00 | Soichiro Moritani v Ko Suzuki | 3-6,4-6 |
| ITF M15 Guam | 2019/06/06 01:20 | Ko Suzuki v Karunuday Singh | 3-6,7-6,6-3 |
| ITF M15 Guam | 2019/06/05 02:40 | Ko Suzuki v Joseph W. Van Meter | 6-2,6-4 |