Stadium: Court F Round: 45 Ground: Hardcourt indoor
| ITF Japan F4 | 2018/03/24 02:00 | Soichiro Moritani v Itsuki Matsumoto | 6-2,6-3 |
| ITF Japan F1 | 2018/03/05 01:00 | Takashi Saito v Itsuki Matsumoto | 6-3,6-4 |
| ITF Japan F1 | 2018/03/04 01:00 | Shoji Sato v Itsuki Matsumoto | 4-6,4-6 |
| ITF Japan F1 | 2018/03/03 03:00 | Itsuki Matsumoto v Ryota Kishi | 6-3,6-1 |
| Challenger Kobe Qual | 2017/11/04 03:40 | Yosuke Watanuki v Itsuki Matsumoto | 6-4,6-3 |
| ITF Spain F31 | 2017/09/26 09:00 | Itsuki Matsumoto v Sergio Barranco | 3-6,4-6 |
| Challenger Canberra 2 | 2018/10/26 23:50 | Colin Sinclair v Harry Bourchier | 2-6,4-6 |
| Challenger Traralgon | 2018/10/21 23:00 | Yosuke Watanuki v Colin Sinclair | 6-3,7-5 |
| Challenger Traralgon | 2018/10/21 05:00 | Moerani Bouzige v Colin Sinclair | 4-6,1-6 |
| Challenger Traralgon | 2018/10/21 01:50 | Calum Puttergill v Colin Sinclair | 4-6,1-6 |
| ITF Australia F8 | 2018/10/14 03:45 | Maverick Banes v Colin Sinclair | 6-4,6-2 |
| ITF Australia F8 | 2018/10/14 00:00 | Hiroyasu Ehara v Colin Sinclair | 6-2,1-6,3-6 |
| ITF Australia F8 | 2018/10/12 01:15 | Colin Sinclair v Kuan-Yi Lee | 6-1,6-2 |
| ITF Australia F8 | 2018/10/11 04:10 | Colin Sinclair v Gage Brymer | 7-6,6-3 |