Stadium: Court 17 Round: 29
| ITF M15 Claremont | 2019/02/09 20:50 | Sinclair, Colin v Craig, Henry | 6-4,6-2 |
| ITF M15 Claremont | 2019/02/08 18:00 | Sinclair, Colin v George Goldhoff | 4-6,7-5,6-3 |
| ITF M15 Claremont | 2019/02/07 19:35 | Sinclair, Colin v Lu, Tyler | 6-3,6-3 |
| 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 |
| ITF M15 Claremont | 2019/02/09 19:30 | Lucas Poullain v Arconada, Jordi | 6-4,6-0 |
| ITF M15 Claremont | 2019/02/08 20:05 | Lucas Poullain v Pervolarakis, Michail | 4-6,6-4,6-2 |
| ITF M15 Claremont | 2019/02/06 19:30 | Spec, Matic v Lucas Poullain | 1-6,2-6 |
| ITF M15 Claremont | 2019/02/05 20:30 | Lucas Poullain v Steinhausen, Julian Noah | 6-1,6-4 |
| ITF M15 Claremont | 2019/02/05 18:00 | Lucas Poullain v Rapp, Austin | 6-3,1-6,10-6 |
| ITF M25 Tucson | 2019/01/10 21:05 | Lucas Poullain v Arconada, Jordi | 6-7,6-3,5-7 |
| ITF M25 Tucson | 2019/01/09 21:15 | Krainik, Pavel v Lucas Poullain | 5-7,4-6 |
| ITF M25 Tucson | 2019/01/08 17:00 | Lucas Poullain v Aleksandar Kovacevic | 6-0,6-3 |