Stadium: Court 3 Round: 24 Ground: Hardcourt indoor
| Davis Cup | 2019/09/14 08:10 | Colin Sinclair v Omar Alawadhi | 7-5,3-6,6-2 |
| Davis Cup | 2019/09/13 08:05 | Colin Sinclair v Saud Alhaqbani | 6-1,6-1 |
| Davis Cup | 2019/09/11 08:05 | Colin Sinclair v Dipu Lal | 6-0,6-0 |
| Challenger New Haven | 2019/09/03 17:45 | Thai-Son Kwiatkowski v Colin Sinclair | 7-6,6-2 |
| ITF M15 Cancun | 2019/08/23 14:00 | Colin Sinclair v Thiago Agustin Tirante | 4-6,4-6 |
| ITF M15 Cancun | 2019/08/22 16:50 | Colin Sinclair v Sebastian Murillo | 6-3,6-4 |
| ITF M15 Cancun | 2019/08/20 18:10 | Colin Sinclair v Kalman Boyd | 6-1,7-6 |
| Challenger Vancouver | 2019/08/14 01:30 | Colin Sinclair v Vasek Pospisil | 4-6,7-5,2-6 |
| Challenger Banja Luka | 2019/09/10 08:00 | Camilo Ugo Carabelli v Alexander Erler | 6-4,3-6,6-3 |
| ITF M25 Trieste | 2019/09/07 14:30 | Juan Pablo Varillas v Alexander Erler | 6-7,6-1,6-4 |
| ITF M25 Trieste | 2019/09/06 12:00 | Tom Kocevar-Desman v Alexander Erler | 1-6,0-6 |
| ITF M25 Trieste | 2019/09/05 12:15 | Alexander Erler v Sandro Ehrat | 6-2,7-5 |
| ITF M25 Trieste | 2019/09/04 12:50 | Alexander Erler v Gregorio Lulli | 3-6,6-2,6-3 |
| ITF M25 Trieste | 2019/09/03 13:45 | Adam Pavlasek v Alexander Erler | 3-6,3-6 |
| ITF M25 Schlieren | 2019/08/22 11:55 | Jakub Paul v Alexander Erler | 3-6,6-2,6-2 |
| ITF M25 Schlieren | 2019/08/21 08:00 | Gian Luca Tanner v Alexander Erler | 4-6,6-2,4-6 |