Stadium: Stadium Round: 26
| ITF M15 Claremont | 2019/02/06 20:45 | Sinclair, Colin v Gamble, Luke Jacob | 6-2,6-3 |
| Challenger Canberra | 2019/01/06 23:00 | Doumbia, Sadio v Sinclair, Colin | 6-3,6-4 |
| Challenger Noumea | 2019/01/03 07:00 | Sinclair, Colin v Ymer, Mikael | 3-6,2-6 |
| Challenger Noumea | 2019/01/01 23:00 | Rola, Blaz v Sinclair, Colin | 5-7,4-6 |
| Challenger Noumea | 2018/12/31 01:15 | Maxime Chazal v Sinclair, Colin | 4-6,4-6 |
| Open d'Australie Playoff Wilcard Australienne | 2018/11/30 02:00 | Sinclair, Colin v Zhang, Ze | 1-6,1-6 |
| Open d'Australie Playoff Wilcard Australienne | 2018/11/28 03:25 | Wu, Di v Sinclair, Colin | 2-6,3-6 |
| Challenger Kobe | 2018/11/14 02:00 | Aleksandar Vukic v Sinclair, Colin | 6-1,6-1 |
| ITF M15 Claremont | 2019/02/06 20:45 | Lu, Tyler v Simon Freund | 7-5,6-7,6-3 |
| Los Angeles, Singles M-ITF-USA-01A | 2019/01/02 18:00 | Lu, Tyler v Smith, Logan | 6-7,6-7 |
| South Africa F2, Singles | 2018/11/29 08:00 | Lu, Tyler v Butler, Samm | 4-6,3-6 |
| South Africa F2, Singles | 2018/11/27 11:35 | Lu, Tyler v Borsos, Gabor | 1-6,6-2,6-3 |
| ITF South Africa F1 | 2018/11/21 08:00 | Lu, Tyler v Du Toit, Lance-Pierre | 3-6,2-6 |
| ITF Mozambique F2 | 2018/11/16 08:00 | Matias Franco Descotte v Lu, Tyler | 6-4,6-4 |
| ITF Mozambique F2 | 2018/11/15 07:30 | Lu, Tyler v Kelsey Stevenson | 4-6,6-3,6-4 |
| ITF Mozambique F2 | 2018/11/12 09:35 | Lu, Tyler v Preston Brown | 6-7,6-3,6-4 |