Stadium: Court 2 Round: 54 Ground: Clay
| ITF Japan F3 | 2018/03/18 01:30 | Ito, Yuichi v Takeshima, Shunrou | 6-7,6-7 |
| ITF Japan F2 | 2018/03/12 00:30 | Ito, Yuichi v Fujii, Shinta | 1-6,6-3,4-6 |
| ITF Japan F2 | 2018/03/11 00:30 | Ito, Yuichi v Kishi, Ryota | 7-6,7-5 |
| ITF Japan F1 | 2018/03/08 03:10 | Ito, Yuichi v Saito, Takashi | 2-6,4-6 |
| ITF Japan F1 | 2018/03/07 01:00 | Ito, Yuichi v Taketo Takamisawa | 1-6,6-1,6-0 |
| Challenger Kyoto Qual | 2018/02/17 05:15 | Tung-Lin Wu v Ito, Yuichi | 6-4,7-6 |
| ITF Israel F18 | 2017/12/13 08:00 | Mnushkin, Dmitry v Ito, Yuichi | 5-7,7-5,6-4 |
| ITF Israel F18 | 2017/12/12 10:55 | Dray, Eitan v Ito, Yuichi | 2-6,0-6 |
| ITF Japan F4 | 2018/03/25 01:00 | Tamaki Yamao v Ko Suzuki | 6-4,6-2 |
| ITF Japan F3 | 2018/03/17 02:30 | Kikuchi, Gengo v Ko Suzuki | 6-2,3-6,6-3 |
| Challenger Kyoto Qual | 2018/02/19 01:30 | Ko Suzuki v Garanganga, Takanyi | 5-7,4-6 |
| Challenger Kyoto Qual | 2018/02/18 02:45 | Naoki Nakagawa v Ko Suzuki | 6-7,6-7 |
| Challenger Kyoto Qual | 2018/02/17 02:30 | Makoto Ochi v Ko Suzuki | 6-4,4-6,6-7 |
| ITF Malaysia F3 | 2017/10/31 01:30 | Hady Habib v Ko Suzuki | 6-2,6-4 |
| ITF Malaysia F3 | 2017/10/30 02:00 | Ko Suzuki v Mikalai Haliak | 6-3,6-4 |
| ITF Malaysia F3 | 2017/10/29 00:00 | Hung, Jui-Chen v Ko Suzuki | 1-6,4-6 |