Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| Challenger Zhangjiagang | 2019/03/18 02:00 | Colin Sinclair v Fajing Sun | 4-6,2-6 |
| Challenger Shenzhen | 2019/03/12 04:20 | Enrique Lopez-Perez v Colin Sinclair | 6-2,6-4 |
| Challenger Shenzhen | 2019/03/11 02:00 | Colin Sinclair v Xinmu Zhou | 6-2,6-4 |
| ITF M25 Mildura | 2019/03/06 23:00 | Rio Noguchi v Colin Sinclair | 6-7,6-2,6-3 |
| ITF M25 Mildura | 2019/03/05 23:00 | Alexander Klintcharov v Colin Sinclair | 4-6,2-6 |
| ITF M25 Albury | 2019/02/27 02:15 | Colin Sinclair v Issei Okamura | 6-7,6-2,4-6 |
| ITF M15 Tucson | 2019/02/14 21:30 | Colin Sinclair v Jose Olivares | 3-6,6-7 |
| ITF M15 Tucson | 2019/02/13 18:10 | Colin Sinclair v Luke Jacob Gamble | 7-6,6-0 |
| ITF USA F23 Qual | 2017/07/02 17:30 | Christopher G Haworth v Kalman Boyd | 6-2,6-2 |
| ITF USA F21 Qual | 2017/06/26 17:30 | Riley Smith v Kalman Boyd | 6-1,7-6 |
| ITF USA F21 Qual | 2017/06/25 16:30 | Kalman Boyd v Kevin Lynch | 7-6,3-6,6-1 |
| ITF USA F7 | 2017/02/12 16:30 | Kalman Boyd v Lance Cohen | 6-7,4-6 |
| ITF USA F36 | 2016/11/06 16:00 | Constantin Schmitz v Kalman Boyd | 6-1,6-0 |
| ITF USA F36 | 2016/11/05 16:30 | Tom Dynka v Kalman Boyd | 3-6,5-7 |
| ITF USA F32 Qual | 2016/10/15 15:00 | A.J Catanzariti v Kalman Boyd | 7-6,6-4 |
| ITF USA F31 Qual | 2016/10/08 14:00 | Kalman Boyd v Hunter Johnson | 4-6,5-7 |