| 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 |
| ITF Israel F14 | 2018/10/16 10:10 | Tyler Lu v Alec Deckers | 6-7,5-7 |
| ITF Nigeria F5 | 2018/10/11 12:00 | Tyler Lu v Jack Draper | 1-6,3-6 |
| ITF Nigeria F5 | 2018/10/10 09:00 | Tyler Lu v Lucas Renard | 4-6,6-4,6-4 |
| ITF Nigeria F5 | 2018/10/09 10:30 | Alafia Ayeni v Tyler Lu | 4-6,2-6 |
| ITF Nigeria F4 | 2018/10/03 12:15 | Tom Jomby v Tyler Lu | 7-6,6-2 |
| ITF Nigeria F4 | 2018/10/02 09:00 | William Bushamuka v Tyler Lu | 3-6,2-6 |
| Challenger Shanghai | 2018/09/08 05:30 | Tyler Lu v Vishnu Vardhan | 3-6,4-6 |
| Challenger Granby Qual | 2018/07/23 01:00 | Joris De Loore v Tyler Lu | 6-4,6-2 |