Stadium: Center Round: 27 Ground: Hardcourt outdoor
| Australian Open - WC | 2018/11/28 03:25 | Di Wu v Colin Sinclair | 2-6,3-6 |
| Challenger Kobe | 2018/11/14 02:00 | Aleksandar Vukic v Colin Sinclair | 6-1,6-1 |
| Challenger Kobe | 2018/11/12 02:00 | Blake Ellis v Colin Sinclair | 4-6,4-6 |
| Challenger Kobe | 2018/11/11 04:40 | Taisei Ichikawa v Colin Sinclair | 4-6,4-6 |
| Challenger Kobe | 2018/11/10 07:35 | Itsuki Matsumoto v Colin Sinclair | 4-6,1-6 |
| 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 |
| Australian Open - WC | 2018/11/28 04:20 | Sidharth Rawat v Ze Zhang | 4-6,2-6 |
| Challenger Kobe | 2018/11/13 02:00 | Yuta Shimizu v Ze Zhang | 6-1,7-5 |
| Challenger Shenzhen 2 | 2018/11/02 04:10 | Ze Zhang v Aleksandr Nedovyesov | 6-7,6-7 |
| Challenger Shenzhen 2 | 2018/11/01 04:20 | Ze Zhang v Liam Broady | 6-4,1-6,6-1 |
| Challenger Shenzhen 2 | 2018/10/30 05:05 | Radu Albot v Ze Zhang | 4-6,6-4,2-6 |
| Challenger Liuzhou | 2018/10/24 04:25 | Thomas Fabbiano v Ze Zhang | 6-4,6-1 |
| Challenger Liuzhou | 2018/10/23 05:05 | Ze Zhang v Fajing Sun | 6-4,6-3 |
| Challenger Ningbo | 2018/10/16 09:15 | Ze Zhang v Rigele Te | 1-6,2-6 |