Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Austin | 2019/11/20 18:50 | Collin Altamirano v Michael Shabaz | 7-5,6-2 |
| Challenger Houston | 2019/11/13 17:50 | Collin Altamirano v Adrian Menendez-Maceiras | 4-6,0-6 |
| Challenger Houston | 2019/11/11 21:10 | Gage Brymer v Collin Altamirano | 2-6,6-7 |
| ITF M25 Malibu | 2019/11/09 22:40 | Collin Altamirano v Daniel Altmaier | 6-7,6-2,5-7 |
| ITF M25 Malibu | 2019/11/08 18:00 | Evan Song v Collin Altamirano | 3-6,4-6 |
| ITF M25 Malibu | 2019/11/07 19:35 | Austin Rapp v Collin Altamirano | 1-6,3-6 |
| ITF M25 Malibu | 2019/11/06 00:40 | Isaiah Strode v Collin Altamirano | 2-6,5-7 |
| Challenger Las Vegas | 2019/10/15 17:30 | Collin Altamirano v Kevin King | 3-6,5-7 |
| ITF M15 Austin | 2019/11/20 15:50 | Preston Brown v Quinn Vandecasteele | 6-1,6-4 |
| ITF M15 Austin | 2019/11/19 16:00 | Preston Brown v Nathan Chavez | 6-4,6-4 |
| ITF M15 Cancun | 2019/11/03 14:00 | Rafael Giotis v Preston Brown | 1-6,7-6,10-4 |
| ITF M15 Pretoria | 2019/10/02 09:10 | Raheel Manji v Preston Brown | 7-5,6-0 |
| ITF M15 Johannesburg | 2019/09/24 10:00 | Preston Brown v Terence Atmane | 5-7,1-6 |
| ITF M15 Sajur | 2019/09/04 10:05 | Alexis Canter v Preston Brown | 6-1,7-5 |
| ITF M15 Sajur | 2019/09/03 07:00 | Preston Brown v Nir Vodavoz | 7-5,6-4 |
| ITF M15 Sajur | 2019/09/02 09:30 | Preston Brown v Ido Zonder | 6-0,6-0 |