| UTR Pro Suita | 2024/04/22 00:30 | Kai Kawano v Ko Suzuki | 1-6,6-3,3-6 |
| ITF M15 Kashiwa | 2024/03/31 01:00 | Ko Suzuki v Koki Matsuda | 3-6,5-7 |
| ITF M15 Tsukuba | 2024/03/24 01:00 | Ray Ho v Ko Suzuki | 6-1,6-1 |
| ITF M15 Nishi-Tokyo | 2024/03/19 01:00 | Linang Xiao v Ko Suzuki | 6-4,6-2 |
| ITF M15 Nishi-Tokyo | 2024/03/18 01:00 | Ko Suzuki v Keisuke Saitoh | 6-3,6-3 |
| ITF M15 Hinode | 2024/03/11 01:00 | Yuta Kikuchi v Ko Suzuki | 6-1,7-5 |
| ITF M15 Yanagawa | 2023/12/28 02:40 | Ko Suzuki v Duckhee Lee | 1-6,2-6 |
| ITF M15 Yanagawa | 2023/12/27 02:10 | Kenta Miyoshi v Ko Suzuki | 6-7,3-6 |
| UTR Pro Kawaguchi | 2024/03/09 02:30 | Haruki Katsushima v Ryotaro Matsumura | 1-6,6-4,2-6 |
| UTR Pro Kawaguchi | 2024/03/08 03:30 | Masaya Kobayashi v Haruki Katsushima | 2-6,1-6 |
| UTR Pro Kawaguchi | 2024/03/07 06:03 | Hiiro Sakamoto v Haruki Katsushima | 4-6,6-7 |
| UTR Pro Kawaguchi | 2024/03/04 00:00 | Haruki Katsushima v Yuto Miyagawa | 6-1,6-4 |
| UTR Pro Kawaguchi | 2024/03/02 01:30 | Haruki Katsushima v Tomohiro Masabayashi | 0-6,4-6 |