Stadium: Tad Taube Court Round: 24 Ground: Hardcourt outdoor
| Challenger Tiburon | 2019/09/23 21:20 | Michail Pervolarakis v Colin Sinclair | 6-3,7-6 |
| Challenger Columbus 3 | 2019/09/17 15:40 | Colin Sinclair v Alexander Erler | 5-7,6-7 |
| 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 |
| Challenger Campinas | 2019/09/30 18:00 | Camilo Ugo Carabelli v Agustin Velotti | 6-4,6-3 |
| Challenger Buenos Aires | 2019/09/27 20:20 | Agustin Velotti v Facundo Bagnis | 3-6,6-7 |
| Challenger Buenos Aires | 2019/09/26 23:35 | Agustin Velotti v Thiago Seyboth Wild | 7-6,1-6,6-3 |
| Challenger Buenos Aires | 2019/09/24 21:00 | Federico Delbonis v Agustin Velotti | 4-6,3-6 |
| Challenger Buenos Aires | 2019/09/24 00:00 | Maximiliano Estevez v Agustin Velotti | 0-6,2-6 |
| Challenger Shanghai | 2019/09/09 07:35 | Yecong He v Agustin Velotti | 6-3,6-2 |
| ITF M25 Poznan | 2019/08/24 09:00 | Agustin Velotti v Diego Hidalgo | 4-6,6-4,6-7 |
| ITF M25 Poznan | 2019/08/23 12:15 | Agustin Velotti v Nicolas Alvarez | 2-6,6-3,6-4 |