Stadium: I Round: 26 Ground: Hardcourt outdoor
| ITF Japan F3 | 2014/03/27 03:05 | Takashi Saito v Yuichi Ito | 3-6,1-6 |
| ITF Japan F1 | 2018/03/07 01:00 | Yuichi Ito v Taketo Takamisawa | 1-6,6-1,6-0 |
| Challenger Kyoto Qual | 2018/02/17 05:15 | Tung-Lin Wu v Yuichi Ito | 6-4,7-6 |
| ITF Israel F18 | 2017/12/13 08:00 | Dmitry Mnushkin v Yuichi Ito | 5-7,7-5,6-4 |
| ITF Israel F18 | 2017/12/12 10:55 | Eitan Dray v Yuichi Ito | 2-6,0-6 |
| ITF Israel F17 | 2017/12/07 09:00 | Yuichi Ito v Damien Bayard | 3-6,6-3,3-6 |
| ITF Indonesia F8 | 2017/11/30 03:00 | Sora Fukuda v Yuichi Ito | 7-5,6-3 |
| ITF Indonesia F8 | 2017/11/27 09:20 | Tyler Lu v Yuichi Ito | 2-6,4-6 |
| ITF Vietnam F3 | 2017/11/23 04:40 | Andrew Harris v Yuichi Ito | 7-6,6-2 |
| ITF Japan F1 | 2018/03/07 01:00 | Takashi Saito v Makoto Ochi | 6-3,2-6,6-4 |
| ITF Japan F1 | 2018/03/05 01:00 | Takashi Saito v Itsuki Matsumoto | 6-3,6-4 |
| ITF Japan F1 | 2018/03/03 03:00 | Takashi Saito v Tamaki Yamao | 7-6,6-4 |
| ITF Hong Kong F6 | 2018/01/03 03:30 | Matteo Viola v Takashi Saito | 4-6,6-2,6-4 |
| ITF Hong Kong F6 | 2018/01/01 02:00 | Ming Chun Alan Sou v Takashi Saito | 2-6,1-6 |
| ITF Hong Kong F5 | 2017/12/28 02:00 | Takashi Saito v Alexander Zhurbin | 6-7,4-6 |
| ITF Hong Kong F5 | 2017/12/27 02:30 | Takashi Saito v Chun Hun Wong | 5-7,7-6,7-5 |
| ITF Hong Kong F5 | 2017/12/26 06:10 | Sora Fukuda v Takashi Saito | 6-4,6-7,3-6 |