Stadium: Court G Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF Hong Kong F5 | 2017/12/24 03:00 | Francesco Bessire v Takashi Saito | 3-6,2-6 |
| Challenger Yokohama Qual | 2018/02/26 04:05 | Makoto Ochi v Yunseong Chung | 3-6,6-1,1-6 |
| Challenger Yokohama Qual | 2018/02/24 05:00 | Brydan Klein v Makoto Ochi | 4-6,6-7 |
| Challenger Kyoto Qual | 2018/02/17 02:30 | Makoto Ochi v Ko Suzuki | 6-4,4-6,6-7 |
| ITF Turkey F47 | 2017/12/13 07:15 | Vasile Antonescu v Makoto Ochi | 6-4,7-6 |
| ITF Turkey F46 | 2017/12/07 07:15 | Makoto Ochi v Tak Khunn Wang | 3-6,2-6 |
| ITF Turkey F46 | 2017/12/05 09:50 | Makoto Ochi v Antonio Massara | 3-6,6-1,6-0 |
| ITF Turkey F45 | 2017/12/01 08:55 | Albert Alcaraz Ivorra v Makoto Ochi | 6-2,5-7,6-2 |
| ITF Turkey F45 | 2017/11/30 10:30 | Luca Margaroli v Makoto Ochi | 5-7,6-4,4-6 |